Plethysms, replicated Schur functions, and series, with applications to vertex operators

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Date
2010
Volume
2010-12
Issue
Journal
Series Titel
Oberwolfach Preprints (OWP)
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Publisher
Oberwolfach : Mathematisches Forschungsinstitut Oberwolfach
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Abstract

Specializations of Schur functions are exploited to define and evaluate the Schur functions sλ[αX] and plethysms sλ[αsν(X))] for any α-integer, real or complex. Plethysms are then used to define pairs of mutually inverse infinite series of Schur functions, Mπ and Lπ, specified by arbitrary partitions π. These are used in turn to define and provide generating functions for formal characters, s(π)λ, of certain groups Hπ, thereby extending known results for orthogonal and symplectic group characters. Each of these formal characters is then given a vertex operator realization, first in terms of the series M=M(0) and various L⊥σ dual to Lσ, and then more explicitly in exponential form. Finally the replicated form of such vertex operators are written down.

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Fauser, B., Jarvis, P. D., & King, R. C. (2010). Plethysms, replicated Schur functions, and series, with applications to vertex operators (Oberwolfach : Mathematisches Forschungsinstitut Oberwolfach). Oberwolfach : Mathematisches Forschungsinstitut Oberwolfach. https://doi.org//10.14760/OWP-2010-12
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