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CoDepth -- Option for syzygyModule(-k,M,CoDepth => m)

Description

Allows the user to specify a number m (which must be at least CoDepth M), for more efficient computation.

Caveat

Does not check that the CoDepth value is correct.

See also

Functions with optional argument named CoDepth:

  • approximation(...,CoDepth=>...) -- see approximation -- returns pair of components of the map from the MCM approximation
  • auslanderInvariant(...,CoDepth=>...) -- see auslanderInvariant -- measures failure of surjectivity of the essential MCM approximation
  • coApproximation(...,CoDepth=>...) -- see coApproximation -- Maximal Cohen-Macaulay co-approximation of M
  • syzygyModule(...,CoDepth=>...) -- see syzygyModule -- Produces the k-th syzygy module (k \in ZZ)

For the programmer

The object CoDepth is a symbol.


The source of this document is in MCMApproximations.m2:352:0.