At the moment, the Sym^k distribution space has notions of "approximation module" that make no mathematical sense:
sage: D = sage.modular.pollack_stevens.distributions.Symk(4)
sage: D.approx_module()
Vector space of dimension 5 over Rational Field
sage: D.approx_module(3)
Vector space of dimension 3 over Rational Field
sage: D.approx_module(0)
Vector space of dimension 0 over Rational Field
These meaningless truncations do not support any kind of group action:
sage: x = D([1,2])
sage: x.act_right([0,1,-1,0])
(0, 0)
At the moment, the Sym^k distribution space has notions of "approximation module" that make no mathematical sense:
sage: D = sage.modular.pollack_stevens.distributions.Symk(4) sage: D.approx_module() Vector space of dimension 5 over Rational Field sage: D.approx_module(3) Vector space of dimension 3 over Rational Field sage: D.approx_module(0) Vector space of dimension 0 over Rational Field
These meaningless truncations do not support any kind of group action:
sage: x = D([1,2]) sage: x.act_right([0,1,-1,0]) (0, 0)