Macaulay2 » Documentation
Packages » AnalyzeSheafOnP1 :: doubleDualMap

next | previous | forward | backward | up | index | toc

doubleDualMap -- map from a module to its double dual

Synopsis

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.