Characterizations of smoothness of functions in terms of the basis conjugate to Jacobi polynomials |
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Authors: | Zhongkai Li Zhihui Zhu |
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Institution: | aDepartment of Mathematics, Capital Normal University, Beijing 100048, China |
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Abstract: | By expanding a function f Lp((-1,1),(1-s)α(1+s)βds) (1≤p<∞) in terms of the basis conjugate to the Jacobi polynomials, the associated generalized translation and the generalized difference are introduced to define the smoothness of f, respectively, The related Lipschitz classes are characterized by the properties of the Poisson integral near to the boundary. |
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Keywords: | Jacobi expansion Smoothness Generalized translation Generalized difference |
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