Toward explicit formulas for higher representation numbers of quadratic forms
Autor: | Walling, Lynne H. |
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Rok vydání: | 2011 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | It is known that average Siegel theta series lie in the space of Siegel Eisenstein series. Also, every lattice equipped with an even integral quadratic form lies in a maximal lattice. Here we consider average Siegel theta series of degree 2 attached to maximal lattices; we construct maps for which the average theta series is an eigenform. We evaluate the action of these maps on Siegel Eisenstein series of degree 2 (without knowing their Fourier coefficients), and then realise the average theta series as an explicit linear combination of the Eisenstein series. |
Databáze: | arXiv |
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