期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2021; 64 (1)
Constructing permutation polynomials is a hot topic in finite fields, and permutation polynomials have many applications in another areas. In this pap......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2020; 63 (4)
In the NFV network, the availability of resource scheduling can be transformed to the existence of the restricted fractional (g,f)-factors in the corr......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2020; 63 (4)
The main purpose of this paper is using the analytic methods and the properties of the classical Gauss sums to study the computational problem of one ......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2020; 63 (3)
We explicitly describe the structures of strongly Gorenstein projective, injective and flat modules over formal triangular matrix rings.
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2020; 63 (2)
For any integer t >= 2, let b(t)(n) denote the number of t-regular partitions of n. Recently, infinite families of congruences modulo 3 for b(9)(n)......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2020; 63 (2)
The principal goal of this paper is to study the computational problem of the error term of the fourth power mean for generalized cubic Gauss sums by ......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2020; 63 (1)
A graph G is called fractional (a, b, k)-critical covered if G - Q is fractional [a, b]-covered for any Q subset of V (G) with jQj = k. In this articl......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2020; 63 (1)
Let G (Delta(x Delta),..., 2(x)2, 1(x)1) be the set of connected graph with degree sequence (Delta(x Delta),..., 2(x2), 1(x1)). In this paper, we show......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2020; 63 (1)
A factorizable matrix or F-matrix is a square matrix which is obtained from the product of particular 2 x 2 and 3 x 3 block partitioned matrices. One ......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2019; 62 (2)
For a given positive integer n, let B(n) denote the maximum absolute value of coefficients of any divisor of x(n) -1. Let r >= 2 and n=p(1)(e1)...p......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2019; 62 (2)
For the Schrodinger-Poisson system with critical exponent of the version -Delta u + V(x)u + phi u = a(x) f (u) u(5) in R-3 and -Delta phi = u(2) in R-......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2019; 62 (2)
The main purpose of this paper is using the elementary methods and the properties of the classical Gauss sums to study the computational problems of t......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2019; 62 (2)
From Mersenne sequence to elliptic divisibility sequence, it is a important problem in number theory to prove the existence of primitive prime divisor......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2019; 62 (2)
Let (a, b, c) be a primitive Pythagorean triple satisfying a(2) + b(2) = c(2). In 1956, Jegmanowicz conjectured that the only positive integer solutio......
期刊: BULLETIN MATHEMATIQUE DE LA SOCIETE DES SCIENCES MATHEMATIQUES DE ROUMANIE, 2019; 62 (3)
Let 2(d) be the family of all d x d positive semidefinite matrices. We show that the form of faces of 2(d) under geometric and algebraic definitions c......