Remarks on level one conformal blocks divisors

Abstract

We show that conformal blocks divisors of type B_r and D_r at level one are effective sums of boundary divisors of ${\bar{M}}_{0,n}$. We also prove that the conformal blocks divisor of type $B_r$ at level 1 with weights (ω_1,\dots,ω_1) scales linearly with the level.

arXiv comment4 pages, Comments are welcome