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Barman, Rupam
- Hyperelliptic Curves over š½q and Gaussian Hypergeometric Series
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Ed: y2 = xd + ax + b and E'd: y2 = xd + axdā1 + b,
respectively. We explicitly find the number of š½q-points on Ed and E'd in terms of special values of d Fd-1 and d-1Fd-2 Gaussian hypergeometric series with characters of orders d-1, d, 2(d-1), 2d, and 2d(d-1) as parameters. This gives a solution to a problem posed by Ken Ono [17, p. 204] on special values of n+1Fn Gaussian hypergeometric series for n>2. We also show that the results of Lennon [14] and the authors [4] on trace of Frobenius of elliptic curves follow from the main results.
Authors
Affiliations
1 Department of Mathematics, Indian Institute of Technology, Hauz Khas, New Delhi-110016, IN
2 Indian Institute of Information Technology, Ambari, Gopinath Bordoloi (G.N.B.) Road, Guwahati-781001, IN
1 Department of Mathematics, Indian Institute of Technology, Hauz Khas, New Delhi-110016, IN
2 Indian Institute of Information Technology, Ambari, Gopinath Bordoloi (G.N.B.) Road, Guwahati-781001, IN
Source
Journal of the Ramanujan Mathematical Society, Vol 30, No 3 (2015), Pagination: 331-348Abstract
Let dā„2 be an integer. Denote by Ed and E'd the hyper-elliptic curves over š½q given byEd: y2 = xd + ax + b and E'd: y2 = xd + axdā1 + b,
respectively. We explicitly find the number of š½q-points on Ed and E'd in terms of special values of d Fd-1 and d-1Fd-2 Gaussian hypergeometric series with characters of orders d-1, d, 2(d-1), 2d, and 2d(d-1) as parameters. This gives a solution to a problem posed by Ken Ono [17, p. 204] on special values of n+1Fn Gaussian hypergeometric series for n>2. We also show that the results of Lennon [14] and the authors [4] on trace of Frobenius of elliptic curves follow from the main results.
- On p-Adic Properties of Certain Mahler Coefficients
Abstract Views :150 |
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Authors
Affiliations
1 Department of Mathematical Sciences, Tezpur University, Napaam-784028, Sonitpur, Assam, IN
1 Department of Mathematical Sciences, Tezpur University, Napaam-784028, Sonitpur, Assam, IN
Source
Journal of the Ramanujan Mathematical Society, Vol 26, No 2 (2011), Pagination: 195-202Abstract
For a fixed topological generator u of 1+pā¤p, the map fn:ā¤pāā¤p defined by fn(x)=(uxn) is a continuous function. In this paper we study p-adic properties of certain Mahler coefficients of fn for different values of n exploiting some combinatoridentities.- Iwasawa Ī»-Invariants and Ī-Transforms
Abstract Views :149 |
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Authors
Affiliations
1 Department of Mathematics, Indian Institute of Technology, Guwahati-781039, Assam, IN
2 Department of Mathematical Sciences, Tezpur University, Napaam-784028, Sonitpur, Assam, IN
1 Department of Mathematics, Indian Institute of Technology, Guwahati-781039, Assam, IN
2 Department of Mathematical Sciences, Tezpur University, Napaam-784028, Sonitpur, Assam, IN