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VOL. 27 | 2000 Remarks on critical points of phase functions and norms of Bethe vectors
Evgeny Mukhin, Alexander Varchenko

Editor(s) Michael Falk, Hiroaki Terao

Abstract

We consider a tensor product of a Verma module and the basic linear representation of $sl(n + 1)$. We prove that the corresponding phase function, which is used in the solutions of the KZ equation with values in the tensor product, has a unique critical point and show that the Hessian of the logarithm of the phase function at this critical point equals the Shapovalov norm of the corresponding Bethe vector in the tensor product.

Information

Published: 1 January 2000
First available in Project Euclid: 20 August 2018

zbMATH: 1040.17001
MathSciNet: MR1796902

Digital Object Identifier: 10.2969/aspm/02710239

Subjects:
Primary: 14H10, 14H30

Rights: Copyright © 2000 Mathematical Society of Japan

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