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AlffDiffCartierMatrix

Computes a representation matrix of the Cartier operator.

Syntax:

M := AlffDiffCartierMatrix(F, r);

matrix
  M  
global function field
  F  
integer
  r  
C is r times applied.

See also:  AlffDiff

Description:

Let F/k be a global function field, omega_1, \dots, omega_g \in Omega(F/k) be a basis for the holomorphic differentials and r \in Z^{ >= 1}. Let M = (\lambda_{i,j})_{i,j} \in k^{g \times g} be the matrix such that C^r(omega_i) = \sum_{m=1}^g \lambda_{i, m} omega_m for all 1 <= i <= g. This function returns M.


Example:



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