<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">$$
\def\T{{\bf T}} \def\S{{\bf S}}
\landscape \let\labelstyle\textstyle
\cellpush=10pt \xscale=2.2
\Diagram
       &amp;                  &amp; H_n(X^+\cup\T A^+, X^+) &amp;
   \lTo ^{H_n(k_1)} &amp;        &amp; H_n(\T A^+,A^+)
                               \aTo (-3,-2) _{H_n(p_1)}
                               \aTo (3,-4) ^{\partial_1}                   \\
       &amp;                  &amp; \dTo &gt;{H_n{q_1}}                               \\
       &amp;                  &amp; H_n(\S A^+,P)           &amp;
                    &amp;        &amp; * \dx{.7}                                   \\
       &amp; \ruTo _{H_n(q_4)} \tx{15pt}
                          &amp; \uTo &gt;{H_n(t)}                                 \\
H_n(X^+\cup\T A^+,P) \aTo (2,4)  ^{H_n(j_1)} \tx{15pt}
                     \aTo (2,-4) _{H_n(j_2)} \tx{15pt}
       &amp;   &amp;   &amp;    &amp;        &amp;   &amp; H_{n-1}(A) &amp;
                                     \rTo ^{H_{n-1}(i_A)} &amp; H_{n-1}(A^+,P) \\
       &amp; \rdTo ^{H_n(q_2)} \tx{15pt}
                          &amp;                         &amp; &amp; &amp; \ruTo            \\
       &amp;                  &amp; H_n(X^+/A^+,P)          &amp;
  \lTo ^{P_n(X,A)}  &amp; H_n(X,A)
                      \aTo (1,-2) &gt;{H_n(i_X)}                              \\
       &amp;                  &amp; \uTo &gt;{H_n(q_3)}                               \\
       &amp;                  &amp; H_n(X^+\cup\T A^+,\T A^+)&amp;
  \lTo _{H_n(k_2)} &amp; &amp; H_n(X^+,A^+)
                       \aTo (3,4) _{\partial_2}
                       \aTo (-3,2) _{H_n(p_X)}                             \\
\endDiagram
$$
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