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FastLinAlg :: chooseGoodMinors

chooseGoodMinors -- returns an ideal generated by interesting minors in a matrix

Synopsis

Description

This returns an ideal generated by approximately count minors of size minorSize the matrix M.

i1 : R = QQ[x, y, z];
i2 : M = matrix{{x,y,0}, {y,z,0}, {0,0,0}},

o2 = (| x y 0 |, )
      | y z 0 |
      | 0 0 0 |

o2 : Sequence
i3 : chooseGoodMinors(1, 2, M, Strategy=>StrategyDefaultNonRandom)

              2
o3 = ideal(- y  + x*z)

o3 : Ideal of R

The ideal I is used in the Points portion of the Strategy. Only points where that ideal vanishes will be considered.

Ways to use chooseGoodMinors :

For the programmer

The object chooseGoodMinors is a method function with options.