On the Connection Between Macdonald Polynomials and Demazure Characters

On the Connection Between Macdonald Polynomials and Demazure Characters
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论麦克唐纳多项式与 Demazure 特征的联系

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发表时间:
2000
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通讯作者:
Yasmine B. Sanderson
Yasmine B. Sanderson
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作者:
Yasmine B. Sanderson

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本文证明了非对称Macdonald多项式在t = 0处的特殊化,直到乘以一个简单的因子,都是Demazure模的特征, $$widehat{sl(n)}$$ .这一联系简化了Kostka多项式的非负性和单调性的李理论证明。
AbstractWe show that the specialization of nonsymmetric Macdonald polynomials at t = 0 are, up to multiplication by a simple factor, characters of Demazure modules for $$widehat{sl(n)}$$ . This connection furnishes Lie-theoretic proofs of the nonnegativity and monotonicity of Kostka polynomials.