Kahler Structures and Weighted Actions on the Complex Torus |
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Authors: | Chuah Meng-Kiat |
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Institution: | Department of Applied Mathematics, National Chiao Tung University 1001 Ta Hsueh Road, Hsinchu, Taiwan, chuah{at}math.nctu.edu.tw |
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Abstract: | Let T be the compact real torus, and TC its complexification.Fix an integral weight , and consider the -weighted T-actionon TC. If is a T-invariant Kähler form on TC, it correspondsto a pre-quantum line bundle L over TC. Let H be the square-integrableholomorphic sections of L. The weighted T-action lifts to aunitary T-representation on the Hilbert space H , and the multiplicityof its irreducible sub-representations is considered. It isshown that this is controlled by the image of the moment map,as well as the principle that quantization commutes withreduction. |
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