Singular Manual: spcurve_lib

> | ### D.6.16 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.6.16.1 isCMcod2 |  | presentation matrix of the ideal i, if i is CM
> D.6.16.2 CMtype |  | Cohen-Macaulay type of the ideal i
> D.6.16.3 matrixT1 |  | 1st order deformation T1 in matrix description
> D.6.16.4 semiCMcod2 |  | semiuniversal deformation of maximal minors of M
> D.6.16.5 discr |  | discriminant of semiuniversal deformation
> D.6.16.6 qhmatrix |  | weights if M is quasihomogeneous
> D.6.16.7 relweight |  | relative matrix weight of N w.r.t. weights (W,a)
> D.6.16.8 posweight |  | deformation of coker(M) of non-negative weight
> D.6.16.9 KSpencerKernel |  | kernel of the Kodaira-Spencer map

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