def __init__(self, parent, source, coeff, target):
"""Specifies the morphism source -> coeff * target. Note coeff has type
TensorDGAlgebra of the two algebras that act on the DD structures.
"""
Generator.__init__(self, parent)
MorObject.__init__(self, source, coeff, target)
def __init__(self, parent, source, coeff, target):
"""Specifies the morphism source -> coeff * target."""
Generator.__init__(self, parent)
MorObject.__init__(self, source, coeff, target)
filt = []
if hasattr(source, "filtration"):
filt += [1-x for x in source.filtration]
if hasattr(target, "filtration"):
filt += target.filtration
if filt != []:
self.filtration = filt
def __init__(self, parent, coeff_d, coeffs_a, source, target):
"""Specifies the morphism m(source, coeffs_a) -> coeff_d * target.
source and target are generators in two type DA bimodules with same
algebra actions. If the bimodules have left type D action by algebra1
and right type A action by algebra2, then as a MorObject coeff is of
type TensorDGAlgebra(algebra1, CobarAlgebra(algebra2)).
"""
Generator.__init__(self, parent)
self.coeff_d, self.coeffs_a = coeff_d, coeffs_a
cobar_alg = CobarAlgebra(source.parent.algebra2)
tensor_alg = TensorDGAlgebra((source.parent.algebra1, cobar_alg))
coeff = TensorGenerator(
(coeff_d, TensorStarGenerator(coeffs_a, cobar_alg, source.idem2)),
tensor_alg)
MorObject.__init__(self, source, coeff, target)
def __init__(self, parent, source, coeff, target):
"""Specifies the morphism source -> coeff * target."""
DGenerator.__init__(self, parent, source.idem2.opp())
MorObject.__init__(self, source, coeff, target)
