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D.5.11 sing_lib

Library:
sing.lib
Purpose:
Invariants of Singularities
Authors:
Gert-Martin Greuel, email: greuel@mathematik.uni-kl.de
Bernd Martin, email: martin@math.tu-cottbus.de

Procedures:

D.5.11.1 deform  infinitesimal deformations of ideal i
D.5.11.2 dim_slocus  dimension of singular locus of ideal i
D.5.11.3 is_active  is poly f an active element mod id? (id ideal/module)
D.5.11.4 is_ci  is ideal i a complete intersection?
D.5.11.5 is_is  is ideal i an isolated singularity?
D.5.11.6 is_reg  is poly f a regular element mod id? (id ideal/module)
D.5.11.7 is_regs  are gen's of ideal i regular sequence modulo id?
D.5.11.8 locstd  SB for local degree ordering without cancelling units
D.5.11.9 milnor  milnor number of ideal i; (assume i is ICIS in nf)
D.5.11.10 nf_icis  generic combinations of generators; get ICIS in nf
D.5.11.11 slocus  ideal of singular locus of ideal i
D.5.11.12 qhspectrum  spectrum numbers of w-homogeneous polynomial f
D.5.11.13 Tjurina  SB of Tjurina module of ideal i (assume i is ICIS)
D.5.11.14 tjurina  Tjurina number of ideal i (assume i is ICIS)
D.5.11.15 T_1  T^1-module of ideal i
D.5.11.16 T_2  T^2-module of ideal i
D.5.11.17 T_12  T^1- and T^2-module of ideal i
D.5.11.18 tangentcone  compute tangent cone of id


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            User manual for Singular version 2-0-6, November 2004, generated by texi2html.