Package sage :: Package tables :: Module conv :: Class ModularForm
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Class ModularForm


Method Summary
  __init__(self, N, d, i, Wq, r, charpolys, disc)
  __repr__(self)
  congruence_multiple(self, f, anemic)
Return an integer C such that any prime of congruence between this modular form and f is a divisor of C.
  torsion_multiple(self)
Returns a multiple of the order of the torsion subgroup of the corresponding abelian variety.

Method Details

congruence_multiple(self, f, anemic=True)

Return an integer C such that any prime of congruence between this modular form and f is a divisor of C.

If anemic=True (the default), include only coefficients a_p with p coprime to the levels of self and f.

This function returns the gcd of the resultants of each of the charpolys of coefficients of self and f that are both known.

torsion_multiple(self)

Returns a multiple of the order of the torsion subgroup of the corresponding abelian variety.

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