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<class""> >span">;;/><a href="chap8_mj.html#X7892BBCD783ABE16">8.- <>span>
<span class="ContSS"><br /><span class="nocss"> </span><a href="chap8_mj.html#X7A82F6DC7C4C7761">8.1-3 IsBicocomplexOfFinitelyPresentedObjectsRep</a>< ""java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 197
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<span class="ContSS"><br /><span class="nocss"> </span><a href="chap8_mj.html#X86D50FE285F49BF6">8.2-1 HomalgBicomplex</a></span>
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<div class="ContSect"><span class="tocline"><span class="nocss"> </span><a href="chap8_mj.html#X854AA4C379C813AC">8.3 <span class="Heading">Bicomplexes: Properties</span></a>
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<span class="ContSS"><br /><span class="nocss"> </span><a href="chap8_mj.html#X87886CA9828D0B4A">8.3-2 IsBicomplex</a></span>
<span class="ContSS"><br /><span class="nocss"> </span><a href="chap8_mj.html#X85363EC87E54554C">8.3-3 IsTransposedWRTTheAssociatedComplex<pan=ContSSbr >span=n"&&/> =.#87886>832 />
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<div class="ContSect"><span class="tocline"><span class="nocss"> </span><a href="chap8_mj.html#X81357E7A7C6D31F5">8.5 <span class="Heading">Bicomplexes: Operations and Functions</span></a>
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<p>Each bicomplex in <strong class="pkg">homalg</strong> has an underlying complex of complexes. The bicomplex ="ContSS"><br /><span class="nocss"> </span><a href="chap8_mj.html#X7D4B66E08666B142">8.5-2 ByASmallerPresentation>>
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<h5>8.1-1 IsHomalgBicomplex
<java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0 p: java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 81
<p>The <strong class="pkg">GAP</strong> category of <strong class="pkg">homalg</strong> bi(co)complexes.</p>
<p>(It is a subcategory of the <strong class<>Returns < class"ode"></code or< class"ode"false/>java.lang.StringIndexOutOfBoundsException: Range [81, 80) out of bounds for length 81
<div class="func"><table class="func"
<p>Returns: <code class="code">true</code> or <code class
<> =pkg<java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 166
<p>(It is a representation of the <strong class="pkg">GAP</strong> category <code class="func">IsHomalgBicomplex</code> (<a href="chap8_mj.p>:<code class="code">true</code> or <code class="code">false</code
<h5>8.1-3 java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 0
<div
<Returns java.lang.StringIndexOutOfBoundsException: Range [25, 23) out of bounds for length 81
<p>The <strong class="pkg">GAP</strong> representation of
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<h4>8.2 <span class="Heading">Bicomplexes: p>(It is a representation of the <strong class="pkg <code"">java.lang.StringIndexOutOfBoundsException: Range [118, 112) out of bounds for length 348
<p>This constructor creates a bicomplex (homological bicomplex) given a <strong class="pkg">homalg</strong> complex of (co)complexes <var class="Arg">C</var> (--> <code class="func">HomalgComplex</code> (<a href="chap6_mj.html#X7C0D9D0178477517"><span class="RefLink">6.2-1</span></a>)), resp. creates a bicocomplex (cohomological bicomplex) given a <strong class="pkg">homalg</strong> cocomplex of <>: class=p"homalg<strong><p
<div class="example"><pre>
<span class="GAPprompt">gap></span> <span class="GAPinput">zz := HomalgRingOfIntegers( );</span>
Z
<span class="GAPprompt">gap></span> <span class="GAPinput">M := HomalgMatrix( "[ 2, 3, 4, 5, 6, 7 ]", 2, 3, zz );</span>
<A2 x 3 matrix over an internal ring>
<span class="GAPprompt">gap></span> <span class="GAPinput">M := LeftPresentation( M );</span>
<A non-torsion left module presented by 2 relations for 3 generators>
<span class="GAPprompt">gap></span> <span class="GAPinput">d := Resolution( M );</span>
<A non-zero right acyclic complex containing a single morphism of left modules\
at degrees [ 0 .. 1 ]>
<span class="GAPprompt">gap></span> <span class="GAPinput">dd := Hom( d );</span>
<A non-zero acyclic cocomplex containing a single morphism of right modules at\
degrees [ 0 .. 1 ]>
<span class="GAPprompt">gap></span> <span class="GAPinput">C := Resolution( dd );</span>
<An acyclic cocomplex containing a single morphism of right complexes at degre\
es [ 0 .. 1 ]>
<span class="GAPprompt">gap></span> <span class="GAPinput">CC := Hom( C );</span>
<A non-zero acyclicspan class="="GAPprompt>>><java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 99
t degrees [ 0 .. 1 ]>
<span class="GAPprompt">gap></span> <span class="GAPinput">BC := HomalgBicomplex( CC );</span>
<A non-zero bicomplex containing left modules ""gap; => : ;/span>
&; - 2 java.lang.StringIndexOutOfBoundsException: Range [75, 71) out of bounds for length 75
<span class="GAPprompt">gap></span> <span&; single modulesjava.lang.StringIndexOutOfBoundsException: Index 82 out of bounds for length 82
**
* *
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<span class="GAPprompt">gap></span> <span class="GAPinput">IsIdenticalObjjava.lang.StringIndexOutOfBoundsException: Index 82 out of bounds for length 82
true
<span class="GAPprompt">gap></span> <lt;A non-zero acyclic complex containing a
<A non-<span class="G>gt/>"> =java.lang.StringIndexOutOfBoundsException: Range [84, 83) out of bounds for length 97
[ 0 . 1 ]gt;
< class=GAPprompt>g;<> < =GAPinput>isplay( tBC );</>
* *
* *
</pre></div>
<div span class"GAPprompt">gap></span> <span class="GAPinput">tBC := TransposedBicomplex( BC );</span>
<java.lang.StringIndexOutOfBoundsException: Range [41, 2) out of bounds for length 81
<p>Check if all maps in <var class=0 .1g;
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<h5>8.3-2 java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
<div class="func"><table p>Returns: <code class="code"code <class"/java.lang.StringIndexOutOfBoundsException: Range [77, 76) out of bounds for length 81
<p>Returns: <code class="
<p>Check if <var class="Arg">BC</var> is transposed
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<p>The (co)complex of (co)complexes underlying the (co)homological bicomplex
<p><a id="java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
<5852ByASmallerPresentationh5>
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<<>Thecocof(ocomplexes ()omological < =A"BC/var>./pjava.lang.StringIndexOutOfBoundsException: Index 107 out of bounds for length 107
<p>See <code class="func">ByASmallerPresentation</code> (<a href="chap6_mj.html#X79677A407C9EF3A0"><span class="RefLink">6.5-2</span></a>) on complexes.</java.lang.StringIndexOutOfBoundsException: Range [0, 155) out of bounds for length 0
<p>This method java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0
< =">n;<a href="hap0_mj>Top]/>&; <ahref"chap0_mj.#ontents>Contents]/& &bsp java.lang.StringIndexOutOfBoundsException: Range [155, 154) out of bounds for length 263
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