cup-products

-*- M2 -*-

Title: Cup products on Ext modules

Description:

An M2 package computing the cup product maps Ext^i(M,M) x Ext^j(M,M) ->
Ext^(i+j)(M,M) where the module M is given by its presentation matrix.  This
involves computing the min free resolution for M so might not be very effective
if the number of vars is large, but would allow some M2 users to play with
deformation theory.

--mike: this would be a nice one to do.

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Proposed by: Sorin Popescu <sorin@math.sunysb.edu>
Potential Advisor: 
Project assigned to: 
Current status:

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Progress log:

Daniel Robertz has written some related code (DGAlgebra.m2).