Bethe algebra and the algebra of functions on the space of differential operators of order two with polynomial kernel |
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Authors: | E Mukhin V Tarasov A Varchenko |
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Institution: | (1) Department of Mathematical Sciences, Indiana University – Purdue University Indianapolis, 402 N. Blackford St, Indianapolis, IN 46202-3216, USA;(2) St. Petersburg Branch of Steklov Mathematical Institute, Fontanka 27, St. Petersburg, 191023, Russia;(3) Department of Mathematics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3250, USA |
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Abstract: | We show that the algebra of functions on the scheme of monic linear second-order ordinary differential operators with prescribed
n + 1 regular singular points, prescribed exponents at the singular points, and having the kernel consisting of polynomials only, is isomorphic to the Bethe algebra of the Gaudin
model acting on the vector space Sing of singular vectors of weight Λ(∞) in the tensor product of finite-dimensional polynomial -modules with highest weights .
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Keywords: | " target="_blank"> Bethe algebra Bethe ansatz Gaudin model differential operators with polynomial kernel separation of variables |
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