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ConformalBlocks :: - SymmetricDivisorM0nbar

- SymmetricDivisorM0nbar -- negate a symmetric divisor

Synopsis

Description

Let Pic(M0,n)QSn denote the vector space of Sn-invariant divisors with rational coefficients. Here, given an Sn symmetric Q-divisor D on M0,n, the function returns -D.

i1 : D=symmetricDivisorM0nbar(6,{2,3})

o1 = SymmetricDivisorM0nbar{2 => 2             }
                            3 => 3
                            NumberOfPoints => 6

o1 : SymmetricDivisorM0nbar
i2 : E=-D

o2 = SymmetricDivisorM0nbar{2 => -2            }
                            3 => -3
                            NumberOfPoints => 6

o2 : SymmetricDivisorM0nbar