Abstract
Here we present a general approach to integrating representations of a Lie algebra that are explicitly presented acting on quotients of the universal enveloping algebra (or as equivalent induced representations). The idea is to think of “group elements” as “non-commutative generating functions” for the representations. One can then shift from non-commutative elements acting on non-commutative elements to non-commutative operators acting on (functions of) commutative variables. The representation so transformed is thus typically presented in terms of differential operators and the usual boson operator calculus can be applied for performing computations.
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References
B. Gruber, H. D. Doebner, P. J. Feinsilver, Representations of the Heisenberg-Weyl algebra and group, Kinam, 4: 241 (1982).
B. Gruber, A. U. Klimyk, Matrix elements for indecomposable representations of complex su(2), JMP 25, 4: 755 (1984).
Also see the article by Moshinsky in this volume for boson operator techniques.
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© 1986 Springer Science+Business Media New York
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Feinsilver, P. (1986). Special Functions and Representations of su(2). In: Gruber, B., Lenczewski, R. (eds) Symmetries in Science II. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-1472-2_12
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DOI: https://doi.org/10.1007/978-1-4757-1472-2_12
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-1474-6
Online ISBN: 978-1-4757-1472-2
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