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Action of the group of classes on representations of numbers by a ternary quadratic form: The formulas of Siegel and Kneser-Hsia-Peters
Authors:Yu. G. Teterin
Abstract:We specify in explicit form the action of the group of classes of binary quadratic forms of determinant dm on the set of primitive representations of the number m by a ternary quadratic form. As a consequence, we obtain an elementary proof of Siegel's formulas for the weighted number of representations by a genus and formulas for the weighted number of representations by a spinor genus of ternary forms.Translated from Zapiski Nauchnykh Seminarov Leningradskogo Otdeleniya Matematicheskogo Instituta im. V. A. Steklova AN SSSR, Vol. 151, pp. 141–158, 1986.
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