The Explicit Hypergeometric-Modularity Method
Based on Ramanujan's theories of elliptic functions to alternative bases, commutative formal
group laws, and supercongruence techniques, including the residue-sum technique, we …
group laws, and supercongruence techniques, including the residue-sum technique, we …
Supercongruences for rigid hypergeometric Calabi–Yau threefolds
We establish the supercongruences for the fourteen rigid hypergeometric Calabi–Yau
threefolds over Q conjectured by Rodriguez-Villegas in 2003. Our first method is based on …
threefolds over Q conjectured by Rodriguez-Villegas in 2003. Our first method is based on …
Hypergeometric functions over finite fields
N Otsubo - The Ramanujan Journal, 2024 - Springer
We give a definition of generalized hypergeometric functions over finite fields using modified
Gauss sums, which enables us to find clear analogy with classical hypergeometric functions …
Gauss sums, which enables us to find clear analogy with classical hypergeometric functions …
Traces of Hecke operators via hypergeometric character sums
In this paper we obtain explicit formulas for the traces of Hecke operators on spaces of cusp
forms in certain instances related to arithmetic triangle groups. These expressions are in …
forms in certain instances related to arithmetic triangle groups. These expressions are in …
-Gaussian hypergeometric series and traces of Frobenius for elliptic curves
M Tripathi, J Meher - Research in the Mathematical Sciences, 2022 - Springer
In this article, we obtain finite field analogues of classical summation identities connecting F
3-Appell series and 4 F 3-classical hypergeometric series. As an application, we establish a …
3-Appell series and 4 F 3-classical hypergeometric series. As an application, we establish a …
A family of algebraic curves and Appell series over finite fields
S Azharuddin, G Kalita - The Ramanujan Journal, 2024 - Springer
For a, b, c, d, e∈ Q×, denote by C a, b, c, d, e the nonsingular projective curve over Q given
by the affine equation C a, b, c, d, e: ax 2+ by 2= c+ dxy+ ex 2 y 2. In this paper, we find a …
by the affine equation C a, b, c, d, e: ax 2+ by 2= c+ dxy+ ex 2 y 2. In this paper, we find a …
Appell series over finite fields and modular forms
M Tripathi - Finite Fields and Their Applications, 2023 - Elsevier
In this article, we express the special values of F 4⁎, a finite field analogue of the classical
Appell series F 4, in terms of the Fourier coefficients of weight three modular forms. These …
Appell series F 4, in terms of the Fourier coefficients of weight three modular forms. These …
[HTML][HTML] Characterization of intersecting families of maximum size in PSL (2, q)
We consider the action of the 2-dimensional projective special linear group PSL (2, q) on the
projective line PG (1, q) over the finite field F q, where q is an odd prime power. A subset S of …
projective line PG (1, q) over the finite field F q, where q is an odd prime power. A subset S of …
Appell series over finite fields and Gaussian hypergeometric series
M Tripathi, R Barman - Research in the Mathematical Sciences, 2021 - Springer
In this article, we find finite field analogues of certain identities satisfied by the classical 4 F 3-
hypergeometric series and Appell series. As an application, we find new summation and …
hypergeometric series and Appell series. As an application, we find new summation and …
A modular supercongruence for : An Apéry-like story
We prove a supercongruence modulo p3 between the pth Fourier coefficient of a weight 6
modular form and a truncated 6F5-hypergeometric series. Novel ingredients in the proof are …
modular form and a truncated 6F5-hypergeometric series. Novel ingredients in the proof are …