Top
Back: realizationDim
Forward: realizationDimPoly
FastBack: realclassify_lib
FastForward: symodstd_lib
Up: realizationMatroids_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document

D.15.18.2 irrRealizationDim

Procedure from library realizationMatroids.lib (see realizationMatroids_lib).

Usage:
irrRealizationDim(I,C); where I is a homogeneous linear ideal defining the projective plane Y = V(I) and C is a list of intvectors such that each intvector represents a one-dimensional cone in the tropical fan curve whose irreducible relative realizability should be checked. This representation is done in the following way: a one-dimensional cone K is represented by a vector w whose equivalence class [w] in R^n/<1> can be written as [w] = m*[v] where [v] is the primitive generator of K and m is the weight of K.

Returns:
the dimension of the irreducible relative realization space of C with respect to Y, and -1 if the irreducible realization space is empty.

Example:
 


Top Back: realizationDim Forward: realizationDimPoly FastBack: realclassify_lib FastForward: symodstd_lib Up: realizationMatroids_lib Top: Singular Manual Contents: Table of Contents Index: Index About: About this document
            User manual for Singular version 3-1-6, Dec 2012, generated by texi2html.