### D.15.24 sresext_lib

Library:
  sresforext.lib
Purpose:
  Schreyer's algorithm for modules over the exterior algebra
Authors:
  Ramesh, L., ramesh@mathematik.uni-kl.de

Overview:
  Procedures for and involving computing Schreyer resolution of modules over the exterior algebra

Procedures:

> D.15.24.1 schreyerSyzExt |  | (refined) Schreyer syzygy of a module over the exterior algebra
> D.15.24.2 sresExt |  | free resolution of module m over the exterior algebra using refined Schreyer alg
> D.15.24.3 mresExt |  | minimal free resolution of module m over the exterior algebra using refined Schreyer alg
> D.15.24.4 sheafCohBGGsres |  | cohomology of twists of the coherent sheaf F on P^n associated to coker(M). The range of twists is determined by l,h.

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