Classical symmetric functions in superspace |
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Authors: | Patrick Desrosiers Luc Lapointe Pierre Mathieu |
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Affiliation: | (1) Department of Mathematics and Statistics, The University of Melbourne, Parkville, Australia, 3010;(2) Instituto de Matemática y Física, Universidad de Talca, Casilla 747, Talca, Chile;(3) Département de physique, de eénie physique et d’optique, Université Laval, Québec, Canada, G1K 7P4 |
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Abstract: | We present the basic elements of a generalization of symmetric function theory involving functions of commuting and anticommuting (Grassmannian) variables. These new functions, called symmetric functions in superspace, are invariant under the diagonal action of the symmetric group on the sets of commuting and anticommuting variables. In this work, we present the superspace extension of the classical bases, namely, the monomial symmetric functions, the elementary symmetric functions, the completely symmetric functions, and the power sums. Various basic results, such as the generating functions for the multiplicative bases, Cauchy formulas, involution operations as well as the combinatorial scalar product are also generalized. |
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Keywords: | Symmetric function Superspace |
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