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\dimen@ =\xy@sinabs@@ \dimen@ \advance \R@ \dimen@ \advance \Y@c \xy@sinsign@@ \R@ }% \xy@{}{\L@c =5.7375pt\R@c =5.7375pt\D@c =6.52832pt\U@c =6.52832pt\Edge@c ={\rectangleEdge }\idfromc@ {3,5}}% \xy@{}{\dimen@ =\X@c \advance \dimen@ -\L@c \ifdim \dimen@ <\xy@minX@@ \edef \xy@minX@@ {\the \dimen@ }\fi \dimen@ =\X@c \advance \dimen@ +\R@c \ifdim \dimen@ >\xy@maxX@@ \edef \xy@maxX@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ -\D@c \ifdim \dimen@ <\xy@minY@@ \edef \xy@minY@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ +\U@c \ifdim \dimen@ >\xy@maxY@@ \edef \xy@maxY@@ {\the \dimen@ }\fi }% \xy@{}{\cfromid@ {3,1}}% \xy@{}{\dimen@ =8.47499pt\R@ =\xy@tanabs@@ \dimen@ \dimen@ =35.32336pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =7.80582pt\B@ =\xy@tanabs@@ \dimen@ \dimen@ =35.32336pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixrowsep@ \dimen@ =\xy@sinabs@@ \dimen@ \advance \R@ \dimen@ \advance \X@c \xy@sinsign@@ \R@ }% \xy@{}{\dimen@ =35.32336pt\R@ =\xy@cotabs@@ \dimen@ \dimen@ =8.47499pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =35.32336pt\B@ =\xy@cotabs@@ \dimen@ \dimen@ =7.80582pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixrowsep@ \dimen@ =\xy@cosabs@@ \dimen@ \advance \R@ \dimen@ \advance \Y@c -\xy@cossign@@ \R@ }% \xy@{}{\L@c =3.0pt\R@c =3.0pt\D@c =3.0pt\U@c =3.0pt\Edge@c ={\rectangleEdge }\idfromc@ {4,1}}% \xy@{}{\dimen@ =\X@c \advance \dimen@ -\L@c \ifdim \dimen@ <\xy@minX@@ \edef \xy@minX@@ {\the \dimen@ }\fi \dimen@ =\X@c \advance \dimen@ +\R@c \ifdim \dimen@ >\xy@maxX@@ \edef \xy@maxX@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ -\D@c \ifdim \dimen@ <\xy@minY@@ \edef \xy@minY@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ +\U@c \ifdim \dimen@ >\xy@maxY@@ \edef \xy@maxY@@ {\the \dimen@ }\fi }% \xy@{}{\dimen@ =8.47499pt\R@ =\xy@cotabs@@ \dimen@ \dimen@ =5.7375pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =8.47499pt\B@ =\xy@cotabs@@ \dimen@ \dimen@ =31.07834pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixcolsep@ \dimen@ =\xy@cosabs@@ \dimen@ \advance \R@ \dimen@ \advance \X@c \xy@cossign@@ \R@ }% \xy@{}{\dimen@ =5.7375pt\R@ =\xy@tanabs@@ \dimen@ \dimen@ =8.47499pt\relax \ifdim \R@ >\dimen@ \R@ =\dimen@ \fi \dimen@ =31.07834pt\B@ =\xy@tanabs@@ \dimen@ \dimen@ =8.47499pt\relax \ifdim \B@ >\dimen@ \B@ =\dimen@ \fi \advance \R@ \B@ }% \xy@{}{\dimen@ =\xymatrixcolsep@ \dimen@ =\xy@sinabs@@ \dimen@ \advance \R@ \dimen@ \advance \Y@c \xy@sinsign@@ \R@ }% \xy@{}{\L@c =11.5458pt\R@c =11.54582pt\D@c =7.80582pt\U@c =7.80582pt\Edge@c ={\rectangleEdge }\idfromc@ {4,2}}% \xy@{}{\dimen@ =\X@c \advance \dimen@ -\L@c \ifdim \dimen@ <\xy@minX@@ \edef \xy@minX@@ {\the \dimen@ }\fi \dimen@ =\X@c \advance \dimen@ +\R@c \ifdim \dimen@ >\xy@maxX@@ \edef \xy@maxX@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ -\D@c \ifdim \dimen@ <\xy@minY@@ \edef \xy@minY@@ {\the \dimen@ }\fi \dimen@ =\Y@c \advance \dimen@ +\U@c \ifdim \dimen@ >\xy@maxY@@ \edef \xy@maxY@@ {\the \dimen@ }\fi }% \xy@{}{\ifx \xymatrixsavedCOORD@ \relax \enter@ {\noexpand \let \noexpand \COORD@ \noexpand \xymatrixsavedCOORD@ }\let \xymatrixsavedCOORD@ =\COORD@ \let \COORD@ =\xymatrixCOORD@ \else \enter@ {}\fi }% \xy@{ENTRY "1,1"}{\Row =1 \Col =1\relax \cfromid@ {1,1}\pfromc@ }% \xy@@ix@{{\entrybox }{}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{ENTRY "1,2"}{\Row =1 \Col =2\relax \cfromid@ {1,2}\pfromc@ }% \xy@@ix@{{\entrybox }{0\ar [d] }}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[d]}{\def \thematrixCOORD@@ {[d]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@2,2\endcsname \ifx \next@ \relax \xyerror@RC {2,2}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "1,3"}{\Row =1 \Col =3\relax \cfromid@ {1,3}\pfromc@ }% \xy@@ix@{{\entrybox }{K_1\ar [d]}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[d]}{\def \thematrixCOORD@@ {[d]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@2,3\endcsname \ifx \next@ \relax \xyerror@RC {2,3}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "1,4"}{\Row =1 \Col =4\relax \cfromid@ {1,4}\pfromc@ }% \xy@@ix@{{\entrybox }{K_2\ar [d]}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[d]}{\def \thematrixCOORD@@ {[d]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@2,4\endcsname \ifx \next@ \relax \xyerror@RC {2,4}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "2,1"}{\Row =2 \Col =1\relax \cfromid@ {2,1}\pfromc@ }% \xy@@ix@{{\entrybox }{0 \ar [r] }}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[r]}{\def \thematrixCOORD@@ {[r]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@2,2\endcsname \ifx \next@ \relax \xyerror@RC {2,2}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "2,2"}{\Row =2 \Col =2\relax \cfromid@ {2,2}\pfromc@ }% \xy@@ix@{{\entrybox }{B(\Q ) \ar [r]^{p}\ar [d] }}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[r]}{\def \thematrixCOORD@@ {[r]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@2,3\endcsname \ifx \next@ \relax \xyerror@RC {2,3}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{^}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@{}{\enter@ \DirectionfromtheDirection@ }% \xy@@ix@{\labelbox {p}}\relax \xy@{}{\setbox \z@ =\expandafter \object \the \toks 9 \advance \L@c \labelmargin@ \advance \R@c \labelmargin@ \advance \D@c \labelmargin@ \advance \U@c \labelmargin@ \setboxz@h {\kern \labelmargin@ \boxz@ \kern \labelmargin@ }\A@ =\X@c \B@ =\Y@c \belowDirection@ \xydashl@ \the \Edge@c \thr@@ \advance \A@ -\X@c \advance \B@ -\Y@c \advance \X@c 2\A@ \advance \Y@c 2\B@ \ht \z@ =\U@c \dp \z@ =\D@c \dimen@ =\L@c \advance \dimen@ \R@c \wd \z@ =\dimen@ \setbox \lastobjectbox@ =\hbox {\X@c =\L@c \Y@c =\z@ \Drop@@ }\drop@ {\box \lastobjectbox@ }{}\leave@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[d]}{\def \thematrixCOORD@@ {[d]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@3,2\endcsname \ifx \next@ \relax \xyerror@RC {3,2}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "2,3"}{\Row =2 \Col =3\relax \cfromid@ {2,3}\pfromc@ }% \xy@@ix@{{\entrybox }{B(\Q )\ar [dr]^{\pi } \ar [r]\ar [d] }}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[dr]}{\def \thematrixCOORD@@ {[dr]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@3,4\endcsname \ifx \next@ \relax \xyerror@RC {3,4}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{^}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@{}{\enter@ \DirectionfromtheDirection@ }% \xy@@ix@{\labelbox {\pi }}\relax \xy@{}{\setbox \z@ =\expandafter \object \the \toks 9 \advance \L@c \labelmargin@ \advance \R@c \labelmargin@ \advance \D@c \labelmargin@ \advance \U@c \labelmargin@ \setboxz@h {\kern \labelmargin@ \boxz@ \kern \labelmargin@ }\A@ =\X@c \B@ =\Y@c \belowDirection@ \xydashl@ \the \Edge@c \thr@@ \advance \A@ -\X@c \advance \B@ -\Y@c \advance \X@c 2\A@ \advance \Y@c 2\B@ \ht \z@ =\U@c \dp \z@ =\D@c \dimen@ =\L@c \advance \dimen@ \R@c \wd \z@ =\dimen@ \setbox \lastobjectbox@ =\hbox {\X@c =\L@c \Y@c =\z@ \Drop@@ }\drop@ {\box \lastobjectbox@ }{}\leave@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[r]}{\def \thematrixCOORD@@ {[r]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@2,4\endcsname \ifx \next@ \relax \xyerror@RC {2,4}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[d]}{\def \thematrixCOORD@@ {[d]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@3,3\endcsname \ifx \next@ \relax \xyerror@RC {3,3}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "2,4"}{\Row =2 \Col =4\relax \cfromid@ {2,4}\pfromc@ }% \xy@@ix@{{\entrybox }{B(\Q )/pB(\Q )\ar [r]\ar [d] }}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[r]}{\def \thematrixCOORD@@ {[r]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@2,5\endcsname \ifx \next@ \relax \xyerror@RC {2,5}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[d]}{\def \thematrixCOORD@@ {[d]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@3,4\endcsname \ifx \next@ \relax \xyerror@RC {3,4}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "2,5"}{\Row =2 \Col =5\relax \cfromid@ {2,5}\pfromc@ }% \xy@@ix@{{\entrybox }{0}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{ENTRY "3,1"}{\Row =3 \Col =1\relax \cfromid@ {3,1}\pfromc@ }% \xy@@ix@{{\entrybox }{0 \ar [r] }}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[r]}{\def \thematrixCOORD@@ {[r]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@3,2\endcsname \ifx \next@ \relax \xyerror@RC {3,2}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "3,2"}{\Row =3 \Col =2\relax \cfromid@ {3,2}\pfromc@ }% \xy@@ix@{{\entrybox }{J(\Q )/A(\Q )\ar [r]\ar [d] }}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[r]}{\def \thematrixCOORD@@ {[r]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@3,3\endcsname \ifx \next@ \relax \xyerror@RC {3,3}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[d]}{\def \thematrixCOORD@@ {[d]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@4,2\endcsname \ifx \next@ \relax \xyerror@RC {4,2}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "3,3"}{\Row =3 \Col =3\relax \cfromid@ {3,3}\pfromc@ }% \xy@@ix@{{\entrybox }{C(\Q ) \ar [r] }}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[r]}{\def \thematrixCOORD@@ {[r]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@3,4\endcsname \ifx \next@ \relax \xyerror@RC {3,4}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "3,4"}{\Row =3 \Col =4\relax \cfromid@ {3,4}\pfromc@ }% \xy@@ix@{{\entrybox }{\delta (C(\Q )) \ar [r] }}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{\save }{\save@ }% \xy@{\afterPATH {\afterar@@ }}{\def \PATHslide@@ {\z@ }}% \xy@{~={\preconnect \dir {-}}}{}% \xy@{~/{}}{}% \xy@{~<{|<*h\dir {}}}{}% \xy@{~>{|>*h\dir {>}}}{}% \xy@{~+{}}{}% \xy@{}{\pfromc@ }% \xy@{[r]}{\def \thematrixCOORD@@ {[r]}}% \xy@{}{\expandafter \let \expandafter \next@ \csname Q@3,5\endcsname \ifx \next@ \relax \xyerror@RC {3,5}\else \next@ \fi }% \xy@{}{\setupDirection@ \dimen@ =\PATHslide@@ \dimen@ii =-\sinDirection \dimen@ \ifPATHomitslide@@ \else \advance \X@p \dimen@ii \fi \advance \X@c \dimen@ii \dimen@ii = \cosDirection \dimen@ \ifPATHomitslide@@ \else \advance \Y@p \dimen@ii \fi \advance \Y@c \dimen@ii \PATHomitslide@@false \resetupDirection@ }% \xy@{PATHaction={\preconnect \dir {-}}}{}% \xy@@ix@{{\dir }{-}}\relax \xy@{\connect \dir {-}}{\expandafter \preconnect@ \the \toks 9 }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{<}{\def \PLACEf@ {{0}}\PLACEedgep@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{}}\relax \xy@{\drop !Ch\dir {}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{|}{}% \xy@{}{\enter@ {\pfromthep@ }\Creset@@ \def \PLACEf@ {{.5}}\let \PLACEedgep@@ =\PLACEedgep@ \let \PLACEedgec@@ =\PLACEedgec@ }% \xy@{>}{\def \PLACEf@ {{1}}\PLACEedgec@@ }% \xy@{}{\expandafter \Calong@@ \PLACEf@ \czeroEdge@ }% \xy@{}{\leave@ }% \xy@@ix@{{!Ch\dir }{>}}\relax \xy@{\drop !Ch\dir {>}}{\expandafter \drop@ \the \toks 9 }% \xy@{}{\Cbreak@@ }% \xy@{}{\Clast@@ }% \xy@{}{\setupDirection@ }% \xy@{PATHaction/{}}{}% \xy@{\restore }{\leave@ }% \xy@{ENTRY "3,5"}{\Row =3 \Col =5\relax \cfromid@ {3,5}\pfromc@ }% \xy@@ix@{{\entrybox }{0}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{ENTRY "4,1"}{\Row =4 \Col =1\relax \cfromid@ {4,1}\pfromc@ }% \xy@@ix@{{\entrybox }{}}\relax \xy@{}{\expandafter \dropentry@ \the \toks 9}% \xy@{ENTRY "4,2"}{\Row =4 \Col =2\relax \cfromid@ {4,2}\pfromc@ }% 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