Some homological properties of $GL(m|n)$ in arbitrary characteristic

Alexandr N. Zubkov

Published 2014-05-15, updated 2014-06-13Version 2

We show that Penkov's approach to a superanalog of Borel-Bott-Weil theorem for $G=GL(m|n)$ over a field of zero characteristic can be extended for a perfect field of arbitrary odd characteristic. We also prove some partial version of Kempf's vanishing theorem and characteristic free formula for Euler characteristic $\chi(B, \lambda^{\epsilon})$, where $B$ is a Borel subgroup of $G$.