Differential systems of type (1,1) on Hermitian symmetric spaces and their solutions |
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Authors: | C Benson E Damek |
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Institution: | a Department of Mathematics, East Carolina University, Greenville, NC 27858, USA b Instytut Matematyczny, Uniwersytet Wroc?awski, Plac Grunwaldzki 2/4, 50-384 Wroc?aw, Poland |
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Abstract: | This paper concerns G-invariant systems of second-order differential operators on irreducible Hermitian symmetric spaces G/K. The systems of type (1,1) are obtained from K-invariant subspaces of . We show that all such systems can be derived from a decomposition . Here gives the Laplace-Beltrami operator and is the celebrated Hua system, which has been extensively studied elsewhere. Our main result asserts that for G/K of rank at least two, a bounded real-valued function is annihilated by the system if and only if it is the real part of a holomorphic function. In view of previous work, one obtains a complete characterization of the bounded functions that are solutions for any system of type (1,1) which contains the Laplace-Beltrami operator. |
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Keywords: | 32A50 32M15 31C10 |
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