NONVANISHING OF CONFORMAL BLOCKS DIVISORS ON M¯0,n$$ {overline{mathrm{M}}}_{0,n} $$
NONVANISHING OF CONFORMAL BLOCKS DIVISORS ON M¯0,n$$ {overline{mathrm{M}}}_{0,n} $$
复制标题
M¯0,n$$ 上的共形块除数的非消失 {overline{mathrm{M}}}_{0,n} $$
DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
S. Mukhopadhyay
中科院分区:
文献类型:
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作者:
P. Belkale;A. Gibney;S. Mukhopadhyay
We introduce and study the problem of finding necessary and sufficient conditions under which a conformal blocks divisor on M¯0,n$$ {overline{mathrm{M}}}_{0,n} $$ is nonzero, solving the problem completely for sl2$$ mathfrak{s}{mathfrak{l}}_2 $$. We give necessary nonvanishing conditions in type A, which are sufficient when theta and critical levels coincide. We also show divisors are subject to additive identities, reflecting a decomposition of the weights and level.