CHAIN COMPLEXES
Acknowledgements Complexes of Modules
Creation
Subcomplexes and Quotient Complexes
Access Functions
Elementary Operations
Extensions
Predicates
Chain Maps
Creation
Access Functions
Elementary Operations
Predicates
Maps on Homology
Complexes of Modules
Creation
Complex(L, d) : List, RngIntElt -> ModCpx
Complex(f, d) : Map, RngIntElt -> ModCpx
ZeroComplex(A, m, n) : AlgBas, RngIntElt, RngIntElt -> ModCpx
Dual(C) : ModCpx -> ModCpx
Subcomplexes and Quotient Complexes
sub< C | Q > : ModCpx, SeqEnum[ModAlg] -> ModCpx, MapChn
RandomSubcomplex(C, Q) : ModCpx, SeqEnum -> ModCpx, MapChn
quo< C | D > : ModCpx, ModCpx -> ModCpx
Access Functions
Degrees(C) : ModCpx -> RngIntElt
Algebra(C) : ModCpx -> AlgBas
BoundaryMap(C, n) : ModCpx, RngIntElt -> ModMatRngElt
BoundaryMaps(C) : ModCpx -> List
DimensionsOfHomology(C) : ModCpx -> SeqEnum
DimensionOfHomology(C, n) : ModCpx, RngIntElt -> RngIntElt
DimensionsOfTerms(C) : ModCpx -> SeqEnum
Term(C, n) : ModCpx, RngIntElt -> ModAlg
Terms(C) : ModCpx -> SeqEnum
Elementary Operations
DirectSum(C, D) : ModCpx, ModCpx -> ModCpx
Homology(C) : ModCpx -> SeqEnum
Homology(C, n) : ModCpx, RngIntElt -> SeqEnum
Prune(C) : ModCpx -> ModCpx
Prune(C,n) : ModCpx, RngIntElt -> ModCpx
Preprune(C) : ModCpx -> ModCpx
Preprune(C,n) : ModCpx, RngIntElt -> ModCpx
Shift(C, n) : ModCpx, RngIntElt -> ModCpx
ShiftToDegreeZero(C) : ModCpx -> ModCpx
Splice(C, D) : ModCpx, ModCpx -> ModCpx
Splice(C, D, f) : ModCpx, ModCpx, ModMatRngElt -> ModCpx
Extensions
LeftExactExtension(C) : ModCpx -> ModCpx
RightExactExtension(C) : ModCpx -> ModCpx
ExactExtension(C) : ModCpx -> ModCpx
LeftZeroExtension(C) : ModCpx -> ModCpx
RightZeroExtension(C) : ModCpx -> ModCpx
ZeroExtension(C) : ModCpx -> ModCpx
EqualizeDegrees(C, D) : ModCpx, ModCpx -> ModCpx, ModCpx
EqualizeDegrees(C, D, n) : ModCpx, ModCpx, RngIntElt -> ModCpx, ModCpx
Predicates
IsExact(C) : ModComplex -> BoolElt
IsShortExactSequence(C) : ModCpx -> BoolElt, RngIntElt
IsExact(C, n) : ModCpx, RngIntElt -> BoolElt
IsZeroComplex(C) : ModCpx -> BoolElt
IsZeroMap(C, n) : ModCpx, RngIntElt -> BoolElt
IsZeroTerm(C, n) : ModCpx, RngIntElt -> BoolElt
Example ModCpx_Complexes (H62E1)
Chain Maps
Creation
ChainMap(Q, C, D, n) : SeqEnum, ModCpx, ModCpx, RngIntElt -> MapChn
ZeroChainMap(C, D) : ModCpx, ModCpx -> MapChn
Access Functions
Degree(f) : MapChn -> RngIntElt
ModuleMap(f, n) : MapChn, RngIntElt -> ModMatRngElt
Kernel(f) : MapChn -> ModCpx, MapChn
Cokernel(f) : MapChn -> ModCpx, MapChn
Image(f) : MapChn -> ModCpx, MapChn, MapChn
Elementary Operations
f + g : MapChn , MapChn -> MapChn
a * g : RngElt , MapChn -> MapChn
f * g : MapChn , MapChn -> MapChn
Predicates
IsSurjective(f) : MapChn -> BoolElt
IsInjective(f) : MapChn -> BoolElt
IsZero(f) : MapChn -> BoolElt
IsIsomorphism(f) : MapChn -> BoolElt
IsShortExactSequence(f, g) : MapChn, MapChn -> BoolElt
IsChainMap(L, C, D, n) : List, ModCpx, ModCpx, RngIntElt -> BoolElt
IsChainMap(f) : MapChn -> BoolElt
IsProperChainMap(f) : MapChn -> BoolElt
HasDefinedModuleMap(C,n) : ModCpx, RngIntElt -> BoolElt
Example ModCpx_Chainmaps (H62E2)
Maps on Homology
InducedMapOnHomology(f, n) : MapChn, RngIntElt -> ModTupFldElt
ConnectingHomomorphism(f, g, n) : MapChn, MapChn, RngIntElt -> ModMatRngElt
LongExactSequenceOnHomology(f, g) : MapChn, MapChn -> ModCpx
Example ModCpx_LongExactSequence (H62E3)
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