% wormux level
% felix salfelder 2007


\documentclass[landscape]{article}
\usepackage{amsmath, amssymb}
\usepackage[isolatin]{inputenc}
\usepackage{german}
\usepackage[matrix,arrow,cmtip,curve]{xy}
\usepackage[active]{srcltx}

%%%%%%%%%%%
\pagestyle{empty}


\newcommand{\ox}{\otimes}

\newcommand{\OA}{\operatorname{A_\star}}
\newcommand{\OB}{\mathbb B \times \{ a,b \}}
\newcommand{\OC}{\mathbb C}
\newcommand{\OD}{\mathcal D_+}
\renewcommand{\OE}{{\coprod_{p}\mathcal F_p}}
\newcommand{\OF}{{\operatorname{coker} \varphi}}
\newcommand{\OG}{{\operatorname{Gal}( \mathbb{C} / \overline{ \mathbb Q})}}
\newcommand{\OH}{\operatorname{H}^1}
\newcommand{\OI}{\mathcal I}
\newcommand{\OJ}{{\operatorname{M}(n,\mathbb F_3)}}
\newcommand{\OK}{\Bbbk}
\newcommand{\OL}{\mathcal L^p(\mathbb R;\mathbb C)}
\newcommand{\OLL}{\underset{\leftarrow}{\lim}{\Omega_k}}
\newcommand{\OM}{{\mathcal M^\bot} }
\newcommand{\ON}{{\mathbb N_0} }
\newcommand{\OO}{\mathcal O}
\newcommand{\OOO}{0}
\newcommand{\OP}{{\mathbb P_{\mathbb R}^2}}
\newcommand{\OQ}{{\mathbb Q_p}}
\newcommand{\OR}{{\mathbb R/ \mathbb Z}}
\newcommand{\OS}{\bigoplus V_\alpha}
\newcommand{\OT}{{\mathbb C \ox_\mathbb Z M}}
\newcommand{\OU}{{\operatorname{SU}(3)}}
\newcommand{\OW}{\mathcal W}
\newcommand{\OV}{\mathcal U \ox_{\mathfrak b} \mathbb C_\mu}
\newcommand{\OX}{\mathfrak X(T)}
\newcommand{\OY}{{\mathfrak{sl}_3}}
\newcommand{\OZ}{{\operatorname V(x^3-y^2)}}

\newcommand{\MA}{x \mapsto tx}
\newcommand{\MB}{\frac{\operatorname d}{\operatorname dt}}
\newcommand{\MC}{{\partial}}
\newcommand{\MD}{\iota}
\newcommand{\ME}{{\operatorname{ext}}}
\newcommand{\MF}{{f^\bullet}}
\newcommand{\MG}{{\gamma(n)}}

\newcommand{\MI}{{\int_\Gamma}}
\newcommand{\MJ}{{\cdot^j}}
\newcommand{\MK}{{\kappa}}
\newcommand{\ML}{{\ell}}
\newcommand{\MM}{{\cdot m_\alpha}}
\newcommand{\MN}{{\nabla}}
\newcommand{\MT}{{\tau}}
% \newcommand{\MX}{{\begin{matrix} 1 & u\\ 0 &-1\end{matrix}}}
\newcommand{\MX}{{x \mapsto x^2}}
\newcommand{\MZ}{\zeta}

\begin{document}

$\xymatrix{
A         \ar[d]^\MC       &\OB \ar@{.>}[r] \ar[d]          &\OK            \ar[d]      &\OS       \ar[d]^MD                   &  E             \ar[d]      &\OK\ar[rd]\ar@{<<-}[d]                    & G \ar[r]^{P(c)}\ar[d]  &\OR \ar[d]_a \\
\OQ\ar[r] \ar[d]           &\OU        \ar[d]^\MC           &\OP \ar@/_/[d]^\MJ	       &\OA\ar@{<-}[r] \ar@/_/[l]^\MF         &\OK \ar[dr] \ar@{<--}[d]    & F \ar@{-->}[r] \ar[d]                    &\OY\ar[r] \ar@{<<--}[d] & D  \ar[d]  \\
\OF\ar[r]^\MA \ar@{<..}[d] &\OH \ar[r] \ar[dd]              &\OL \ar[r] \ar@{-->}[d]    & D \ar@{<-}[r]_\MD  \ar[d]            &  E \ar@{-->}[r] \ar@/_/[u] &\OD\ar[r] \ar@{->>}[d] \ar@{}[dr]|\square & G \ar@/_/[r] \ar[d]    &\ON \ar[d]  \\
\OC\ar@/_/[rr] \ar[d]      &                                &\OE \ar[rd] \ar@{<-}[d]    &\OOO\ar@{^{(}->}[r]    \ar[d]         &\OO \ar@{->>}[r] \ar[d]     &\OR\ar[r] \ar[d]                          &\OC    \ar[d]           &\OS \ar[d]  \\
\OJ\ar[r]^\MI \ar[d]       &\OS \ar[r] \ar@{^{(}->}[d]      &\OQ \ar[r]^\gamma \ar[d]   &\OI\ar@{<--}[r]    \ar@/^/[d]         &  E \ar[d] \ar@/_/[u]       &\OW\ar[r] \ar@{->>}[l] \ar[d]             &\OH\ar[ru] \ar@{-->}[d] &\ON \ar[d]  \\
\OI\ar[r] \ar@{-->}[d]     &\OT \ar[ru]        \ar[rd]      &\OLL\ar[r]                 &\OD\ar@{-->}[r] \ar[d]                &\OZ \ar[ru]\ar[d]           &\OF\ar[rd] \ar@{<-}[d]                    &\OL\ar[r]^\MX \ar[d]    &\OV \ar[d]  \\
\OX\ar[r] \ar[d]^\varphi   &\OP        \ar@{->>}[d]         &\OG \ar[r] \ar[d]^\varrho  &\OW\ar[r]^{f_\sharp} \ar[d]           &\OX  \ar[d]^\MT             &\OG\ar[r]^\MG                             &\OX\ar[r] \ar[d]        &\OR \ar[d]  \\
\OL\ar[r]^\MG              &\OX \ar[r] \ar@/^/@{-->}[r]^\MN &\OC                        & D \ar@{.>}[r] \ar[lu]^\MK            &\OF \ar[r] \ar[ru]^\MZ      &\OH\ar[r]                                 &\OI\ar[r]               &\OW   \\
}$

\end{document}