def __init__(self, ring, local_pmc):
"""Specifies the local PMC. Note that unlike StrandAlgebra, the size of
idempotent is variable, and we only implement the multiplicity one case.
"""
DGAlgebra.__init__(self, ring)
self.local_pmc = local_pmc
def __init__(self, ring, pmc, idem_size):
"""Specifies the number of points n and the number of strands k."""
DGAlgebra.__init__(self, ring)
assert idem_size <= pmc.genus * 2, "idem_size too large"
self.pmc = pmc
self.idem_size = idem_size
self.abs_gr = AbsZ2Grading(self)
def __init__(self, ring, pmc, idem_size, mult_one = MULT_ONE):
"""Specifies the PMC, size of idempotent, and whether this is a
multiplicity one algebra.
"""
DGAlgebra.__init__(self, ring)
self.pmc = pmc
self.idem_size = idem_size
self.mult_one = mult_one