D.5.9 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.5.9.1 isCMcod2		presentation matrix of the ideal i, if i is CM
D.5.9.2 CMtype		Cohen-Macaulay type of the ideal i
D.5.9.3 matrixT1		1st order deformation T1 in matrix description
D.5.9.4 semiCMcod2		semiuniversal deformation of maximal minors of M
D.5.9.5 discr		discriminant of semiuniversal deformation
D.5.9.6 qhmatrix		weights if M is quasihomogeneous
D.5.9.7 relweight		relative matrix weight of N w.r.t. weights (W,a)
D.5.9.8 posweight		deformation of coker(M) of non-negative weight
D.5.9.9 KSpencerKernel		kernel of the Kodaira-Spencer map