poincareN C
This function encodes information about the degrees of basis elements of a free chain complex in a polynomial. The polynomial has terms $S^i T_0^{d_0} \cdots T_{n-1}^{d_{n-1}}$ in it for each basis element of C_i with multi-degree {d_0,...,d_(n-1)}.
|
|
|
|
Setting the S variable to -1 gives the polynomial calculated by poincare(ChainComplex).
|
|
Conversely, setting it to 1 gives the same polynomial for the direct sum of components of the complex.
|
|
The source of this document is in /build/reproducible-path/macaulay2-1.25.06+ds/M2/Macaulay2/packages/OldChainComplexes/docs/docs.m2:428:0.