I think there is a bug in hecke_matrix code right now. I get the following results, running sage on sage.math computer:
---------------------------------------------------------------------- | SAGE Version 2.1.0.1, Release Date: 2007-02-09 | | Type notebook() for the GUI, and license() for information. | ---------------------------------------------------------------------- sage: M=ModularSymbols(67,2,1).cuspidal_subspace() sage: M.hecke_matrix(5)*M.hecke_matrix(2) [ -5 0 0 -3 0] [ 0 0 3 2 -3] [ 4 -3 9 3 -11/2] [ 4 -3 9 3 -11/2] [ -3 0 0 4 -3] [ 1/2 0 0 13/2 -2] sage: M.hecke_matrix(10) [ -5 0 0 -3 0] [ 0 0 3 2 -3] [-23/4 -3 9 3 -11/2] [ 7/2 0 0 4 -3] [ -6 0 0 0 -2] Few of the entries are not equal, even though they are supposed to be. I will look at the code, maybe I can find the problem. Soroosh --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
