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NumericalSchubertCalculus :: LRcheater

LRcheater -- A cheater's homotopy to a real Schubert triple intersection problem

Synopsis

Description

A cheater's homotopy between two polynomial systems connects a generic instance to a specific instance. This is similar in function to changeFlags

The example below solves a generic instance of [2 4 6]^3, followed by a cheater homotopy to a real instance.

i1 : R := ZZ;
i2 : n := 6;
i3 : m := matrix{{3, 2, 4, 6}};

              1        4
o3 : Matrix ZZ  <--- ZZ
i4 : t := LRtriple(n,m);
i5 : w := wrapTriplet(t);

Ways to use LRcheater :

For the programmer

The object LRcheater is a method function with options.