Results 31 to 40 of about 29,367 (278)

Arithmetic properties of Ramanujan's general partition function for modulo 11

open access: yesKuwait Journal of Science, 2020
In the present work, for the general partition function $p_k(n)$, we establish five new infinite families of congruences. Our emphasis throughout this paper is to exhibit the use of $q$-identities  to generate congruences for the general partition ...
Srivatsa Kumar Belakavadi Radhakrishna   +2 more
doaj   +1 more source

Reye Congruences [PDF]

open access: yesTransactions of the American Mathematical Society, 1983
This paper studies the congruences of lines which are included in two distinct quadrics of a given generic three-dimensional projective space of quadrics in P 3 {{\mathbf {P}}^3} .
openaire   +1 more source

An investigation on hyper S-posets over ordered semihypergroups

open access: yesOpen Mathematics, 2017
In this paper, we define and study the hyper S-posets over an ordered semihypergroup in detail. We introduce the hyper version of a pseudoorder in a hyper S-poset, and give some related properties.
Tang Jian, Davvaz Bijan, Xie Xiang-Yun
doaj   +1 more source

Ramanujan-type congruences modulo 4 for partitions into distinct parts

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
In this paper, we consider the partition function Q(n) counting the partitions of n into distinct parts and investigate congruence identities of the form Q(p⋅n+p2-124)≡0   (mod4),Q\left( {p \cdot n + {{{p^2} - 1} \over {24}}} \right) \equiv 0\,\,\,\left(
Merca Mircea
doaj   +1 more source

A Study on Groupoids, Ideals and Congruences via Cubic Sets

open access: yesAxioms, 2022
The inclusion, the intersection and the union between cubic sets are each defined in two ways. From this point of view, we introduce the concepts of cubic subgroupoids, cubic ideals, cubic subgroups, and cubic congruences as two types, respectively, and ...
Jeong-Gon Lee   +4 more
doaj   +1 more source

Congruences for 9-regular partitions modulo 3 [PDF]

open access: yes, 2013
It is proved that the number of 9-regular partitions of n is divisible by 3 when n is congruent to 3 mod 4, and by 6 when n is congruent to 13 mod 16. An infinite family of congruences mod 3 holds in other progressions modulo powers of 4 and 5.
Keith, William J.
core   +1 more source

On Fuzzy Congruences and Fuzzy Strong h-Ideals of Hemirings

open access: yesThe Scientific World Journal, 2014
The aim of this paper is to introduce the concepts of fuzzy strong h-ideals and fuzzy congruences of hemirings. The quotient hemirings via fuzzy strong h-ideals are investigated.
Kuanyun Zhu, Jianming Zhan, Yunqiang Yin
doaj   +1 more source

New Congruences Modulo 2, 4, and 8 for the Number of Tagged Parts Over the Partitions with Designated Summands

open access: yes, 2018
Recently, Lin introduced two new partition functions PD$_t(n)$ and PDO$_t(n)$, which count the total number of tagged parts over all partitions of $n$ with designated summands and the total number of tagged parts over all partitions of $n$ with ...
Baruah, Nayandeep Deka, Kaur, Mandeep
core   +1 more source

Counting congruence subgroups

open access: yesActa Mathematica, 2004
Let $ $ denote the modular group $SL(2,\Bbb Z)$ and $C_n( )$ the number of congruence subgroups of $ $ of index at most $n$. We prove that $\lim\limits_{n\to \infty} \frac{\log C_n( )}{(\log n)^2/\log\log n} = \frac{3-2\sqrt{2}}{4}.$ We also present a very general conjecture giving an asymptotic estimate for $C_n( )$ for general arithmetic groups.
Goldfeld, Dorian   +2 more
openaire   +3 more sources

Some congruences related to harmonic numbers and the terms of the second order sequences [PDF]

open access: yesMathematica Moravica, 2016
In this paper, with helps of some combinatorial identities, we investigate various basic congruences involving harmonic numbers and terms of the second order sequences {Ukn} and {Vkn}.
Omur Nese, Koparal Sibel
doaj  

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