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Positive definiteness and positive differences |
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| Authors: | S Sherman |
| Affiliation: | Department of Mathematics, Indiana University, Bloomington, Indiana 47401 USA |
| Abstract: | A previous inequality [2] in certain context, which holds in the application to the monotonicity of correlations in classical discrete Heisenberg ferromagnets with 2-dimensional spin [3], is extended to positive definiteness of a function on a group. |
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