Bernstein-Type Theorems and Uniqueness Theorems |
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Authors: | V. Logvinenko N. Nazarova |
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Affiliation: | (1) Pasadena City College, Pasadena, USA;(2) Kharkov Polytechnic University, Kharkov |
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Abstract: | Let be an entire function of finite type with respect to finite order and let be a subset of an open cone in a certain n-dimensional subspace (the smaller , the sparser ). We assume that this cone contains a ray . It is shown that the radial indicator of at any point may be evaluated in terms of function values at points of the discrete subset . Moreover, if tends to zero fast enough as over , then this function vanishes identically. To prove these results, a special approximation technique is developed. In the last part of the paper, it is proved that, under certain conditions on and , which are close to exact conditions, the function bounded on is bounded on the ray. |
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