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We consider a sequence of sums of powers of the the roots of the cubic equation characterizing the Tribonacci sequences and derive its relationship with a particular Tribonacci sequence. Then we make a conjecture on the possible…

Combinatorics · Mathematics 2007-05-23 Mario Catalani

The study of Ramanujan-type congruences for functions specific to additive number theory has a long and rich history. Motivated by recent connections between divisor sums and overpartitions via congruences in arithmetic progressions, we…

Number Theory · Mathematics 2022-05-12 William Craig , Mircea Merca

We generalize the patterns of supercongruences of Ramanujan-type observed by L. Van Hamme and W. Zudilin to series involving simple square roots anywhere and not only in the result of the sum. To support our observations we give some…

Number Theory · Mathematics 2010-07-27 Jesús Guillera

Inspired by a Zudilin-Zhao's supercongruences pattern related to Ramanujan-like series for $1/\pi^k$, we conjecture a kind of $p$-adic expansions.

Number Theory · Mathematics 2019-10-07 Jesús Guillera

In this short note, we present certain generalized versions of the commutator formulas of some natural operators on manifolds, and give some applications.

Differential Geometry · Mathematics 2011-04-08 Kefeng Liu , Sheng Rao

We consider a general concept of composition and decomposition of objects, and discuss a few natural properties one may expect from a reasonable choice thereof. It will be demonstrated how this leads to multiplication and co- multiplication…

Combinatorics · Mathematics 2010-08-30 P. Blasiak

The Ramanujan polynomials arise in three intertwined contexts. As remarked by BerndtEvans-Wilson, no combinatorial perspective seems to be alluded to in the original definition of Ramanujan. On a different stage, Dumont-Ramamonjisoa…

Combinatorics · Mathematics 2026-05-13 William Y. C. Chen , Amy M. Fu , Elena L. Wang

In this paper, we establish the irrationality of some open problems in mathematics based on using a recursive formula that generate the complete sequence of numbers. see [1] But before getting into that we begin with some Ramanujan notable…

General Mathematics · Mathematics 2021-09-24 Ali Chtatbi

Over 200 years ago, Gauss discovered a composition law on the $SL_2({\mathbb Z})$-equivalence classes of primitive binary quadratic forms. Since then, bijections of classes of binary forms have been found with ideal class groups of…

Number Theory · Mathematics 2019-12-11 Benjamin Nativi

Let K be a cubic number field. In this paper, we study the Ramanujan sums c_{J}(I), where I and J are integral ideals in O_{K}. The asymptotic behaviour of sums of c_{J}(I) over both I and J is investigated.

Number Theory · Mathematics 2021-09-09 Jing Ma , Huayan Sun , Wenguang Zhai

A derivation of Balmer's formula is presented, guided by the principles of simplicity and harmony.

History and Philosophy of Physics · Physics 2024-06-11 D V Redzic

In this short note, we show an analogue of one of Alladi's and Dawsey's formulas with respect to the Ramanujan sum $c_n(m)$ for $m\geq1$. Their formulas may be viewed as the case $m=1$ in our result.

Number Theory · Mathematics 2020-08-11 Biao Wang

We derive the Cardano formula of cubic equations by completing the cube, and provide radical solutions to some algebraic equations of higher degree by completing powers. The main idea of completing powers arises from Harrison's center…

Number Theory · Mathematics 2024-03-14 Hua-Lin Huang , Shengyuan Ruan , Xiaodan Xu , Yu Ye

We present a generalization of the construction of graphs by Lubotzky, Phillips and Sarnak in their celebrated article "Ramanujan graphs". The new approach consists in using octonion algebras rather than quaternions. A key tool is the…

Combinatorics · Mathematics 2012-02-06 Xavier Dahan , Jean-Pierre Tillich

The polynomial Ramanujan sum was first introduced by Carlitz [7], and a generalized version by Cohen [10]. In this paper, we study the arithmetical and analytic properties of these sums, derive various fundamental identities, such as H…

Number Theory · Mathematics 2016-12-28 Zhiyong Zheng

We make a summary of the different types of proofs adding some new ideas. In addition we conjecture some relations which could be necessary in "modular type proofs" (not still found) of the Ramanujan-like series for 1/\pi^2.

Number Theory · Mathematics 2012-10-16 Jesús Guillera

Leibniz algebras generated by one element, called cyclic, provide simple and illuminating examples of many basic concepts. It is the purpose of this paper to illustrate this fact.

Rings and Algebras · Mathematics 2014-02-25 Kristin Bugg , Allison Hedges , Minji Lee , Daniel Scofield , S. McKay Sullivan

In this paper, we utilize operational methods to obtain closed-form solutions for certain classes of integrals in the spirit of Ramanujan's Master Theorem and provide several analogs to it. Although the use of operational calculus makes the…

Classical Analysis and ODEs · Mathematics 2024-02-09 Julius Lehmann

In this note we shall give a new proof to a quadrature formulae due to Newton.

Numerical Analysis · Mathematics 2007-05-23 Cezar Lupu , Tudorel Lupu

A bi-Hamiltonian formulation is proposed for triangular systems resulted by perturbations around solutions, from which infinitely many symmetries and conserved functionals of triangular systems can be explicitly constructed, provided that…

Exactly Solvable and Integrable Systems · Physics 2009-11-07 Wen-Xiu Ma