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On the Representation of Numbers by the Direct Sums of Some Binary Quadratic Forms |
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| Authors: | Kachakhidze N. |
| Abstract: | The systems of bases are constructed for the spaces of cusp forms  and  . Formulas are obtained for the number of representations of a positive integer by the sum of k binary quadratic forms of the kind  , of the kind  and of the kind  . |
| Keywords: | Representation of numbers by quadratic forms direct sum of quadratic forms space of cusp forms generalized multiple theta-series |
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