Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-28T01:02:49.087Z Has data issue: false hasContentIssue false

Lattice Paths and a Sergeev-Pragacz Formula for Skew Supersymmetric Functions

Published online by Cambridge University Press:  20 November 2018

A. M. Hamel*
Affiliation:
Department of Combinatorics and Optimization University of Waterloo Waterloo, Ontario N2L 3G1
I. P. Goulden
Affiliation:
Department of Combinatorics and Optimization University of Waterloo Waterloo, Ontario N2L 3G1
*
Current address for first author: Department of Mathematics and Statistics University of Canterbury Christchurch, New Zealand
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We obtain a new version of the Sergeev–Pragacz formula for supersymmetric functions of standard shape–one applicable to arbitrary skew shape. The result involves an antisymmetrized sum of determinants that are themselves flagged supersymmetric functions. The proof is combinatorial, and follows by means of lattice path transformations.

Keywords

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1995

References

1. Berele, A. and Regev, A., Hook Young diagrams with applications to combinatorics and to representations ofLiesuperalgebras, Adv. in Math. 64(1987), 118175.Google Scholar
2. Bergeron, N. and Garsia, A., Sergeev sformula and the Littlewood-Richardson rule, Linear and Multilinear Algebra 27(1990), 79100.Google Scholar
3. Bressoud, D.M. and S.-Wei, Y., Determinantal formulae for complete symmetric functions, J. Combin. Theory Ser. A 60(1992), 277286.Google Scholar
4. Gessel, I. and Viennot, G.X., Determinants, paths, and plane partitions, unpublished.Google Scholar
5. Goulden, L.P., Directed graphs and the Jacobi- Trudi identity, Canad. J. Math. 37( 1985), 12011210.Google Scholar
6. Goulden, I.P. and Greene, C., A new tableau representation for supersymmetric Schur functions, J. Algebra, to appear.Google Scholar
7. van, J. der Jeugt and Fack, V., The Pragacz identity and a new algorithm for Littlewood-Richardson coefficients, Comput. Math. Appl. 21(1991), 3947.Google Scholar
8. van, J. der Jeugt, B, J.W.. Hughes, King, R.C. and Thierry-Mieg, J., Character formulae for irreducible modules of the Lie superalgebra s\﹛m/n), J. Math. Phys. 31(1990), 22782304.Google Scholar
9. Macdonald, I.G., Symmetric Functions and Hall Polynomials, Oxford Univ. Press, Oxford, 1979.Google Scholar
10. Macdonald, I.G., Notes on Schubert Polynomials, Univ. du Québec à Montréal Press, Montréal, 1991.Google Scholar
11. Macdonald, I.G., Schur functions: Theme and Variations, Actes 28e Séminaire Lotharingien, Publ. I.R.M.A. Strasbourg, 1992. 539.Google Scholar
12. Metropolis, N., Nicolettiand, G. Rota, G.C., A new class of symmetric functions. In: Math. Analysis and Applications, pp. 563—575, Adv. in Math. Supplementary Studies 7B, Academic Press, New York, 1981.Google Scholar
13. Pragacz, P., Algebro-geometric applications of Schur S- and Q- polynomials. In: Topics in Invariant Theory—Séminaire d'Algèbre Dubreil-Malliavin 1989-1990, Lecture Notes in Math. 1478, Springer- Verlag, New York, Berlin, 1991. 130191.Google Scholar
14. Pragacz, P. and Thorup, A., On a Jacobi-Trudi identity for supersymmetric polynomials, Adv. in Math 95(1992), 817.Google Scholar
15. Scheunert, M., Casimir elements of Lie superalgebras. In: Differential Geometric Methods in Math. Physics, Reidel, Dordrecht, 1984. 115124.Google Scholar
16. Wachs, M.L., Flagged Schur functions, Schubert polynomials, and symmetrizing operators, J. Combin. Theory Ser. A 40(1985), 276289.Google Scholar