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D.6.21 spcurve_lib

Library:
spcurve.lib
Purpose:
Deformations and Invariants of CM-codim 2 Singularities
Author:
Anne Fruehbis-Krueger, anne@mathematik.uni-kl.de

Procedures:

D.6.21.1 isCMcod2  presentation matrix of the ideal i, if i is CM
D.6.21.2 CMtype  Cohen-Macaulay type of the ideal i
D.6.21.3 matrixT1  1st order deformation T1 in matrix description
D.6.21.4 semiCMcod2  semiuniversal deformation of maximal minors of M
D.6.21.5 discr  discriminant of semiuniversal deformation
D.6.21.6 qhmatrix  weights if M is quasihomogeneous
D.6.21.7 relweight  relative matrix weight of N w.r.t. weights (W,a)
D.6.21.8 posweight  deformation of coker(M) of non-negative weight
D.6.21.9 KSpencerKernel  kernel of the Kodaira-Spencer map


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