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doubleDualMap -- map from a module to its double dual

Usage:

e = doubleDualMap M
Inputs:
- M, a module,
Outputs:
- e, a matrix, map from M to double dual

Description

provide the natural map M --> Hom(Hom(M,S),S), where S = ring M.

Ways to use doubleDualMap:

doubleDualMap(Module)

For the programmer

The object doubleDualMap is a method function.

The source of this document is in AnalyzeSheafOnP1.m2:241:0.