期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2021; 27 (3)
We shall present new oscillation criteria for non-canonical higher order nonlinear neutral dynamic equations of the form ((a(t)(y(Delta n-1)(t))(alpha......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2021; 27 (1)
In this note, we obtain two families of algebraic numbers which can appear as the radii of convergence of Poincare series of loop spaces of simply con......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2020; 26 (2)
Extremal problems optimizing mixed integral Lp affine surface area under linear transformation are investigated. The famous Lutwak-Yang-Zhang ellipsoi......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2019; 25 (3)
Let f(z) be meromorphic in Delta, E-1 = {a(1), a(2), a(3)} and E-2 = {b(1), b(2), b(3)} be two sets in C, k is an element of Z(+). Suppose that f(z) i......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2018; 24 (1)
In the paper, by the Cauchy integral formula in the theory of complex functions, the authors establish an integral representation for the reciprocal o......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2018; 24 (1)
Let L-n(q) be the projective special linear group of degree n over a finite field of order q. In this paper, the projective special linear group L-3(q......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2018; 24 (1)
Let R be a ring and n be a positive integer. R is called left n-coherent, if every n-presented left R-module is (n + 1)-presented. A left R-module M i......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2018; 24 (2)
We present a new method to convert the boundary value problems for impulsive fractional differential equations involving Caputo fractional derivatives......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2018; 24 (2)
We prove that the number of positive integers n <= x, such that phi(1) + phi(2) + ... + phi(n) is a multiple of n, is less than x/(log x)(0.15742) ......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2017; 23 (2)
Let Aut(p) denote the space of all self-fibre homotopy equivalences of a principal G-bundle p : E -> X of simply connected CW complexes with E fini......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2017; 23 (2)
In the paper, the authors present by several approaches that both the harmonic mean and the geometric mean of two positive numbers are Bernstein funct......
期刊： BOLETIN DE LA SOCIEDAD MATEMATICA MEXICANA, 2017; 23 (2)
In this paper, we establish two fractional integral equalities involving once and twice differential functions. Then, we apply such equalities to give......
