Representation of Integers in Subsequences of the Positive Integers by Binary Quadratic Forms |
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Authors: | O. M. Fomenko |
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Affiliation: | (1) St.Petersburg Department of the Steklov Mathematical Institute, Russia |
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Abstract: | We consider positive-definite primitive binary quadratic forms of fundamental discriminant d < 0; R is the genus and C is the class of such forms. We obtain asymptotics for the sum of absolute values of the Fourier coefficients for the Hecke eigenforms of weight 1 and of dihedral type. In an earlier paper (Zap. Nauchn. Semin. POMI, 226 (1996)), the author showed that if C R, then almost all R-representable positive integers are C-representable. We extend this result to certain subsequences of such as {an = pn + l}, {an = n(n + 1)}, etc. Finally, for certain genera R with class number greater than one, we prove an asymptotics (x ) for the sum where C is a class in R and r(n;C) is the number of representations of a positive integer n by the class C. Bibliography: 30 titles. |
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