Étude sur un théorème d'Abel relatif aux séries et sur un développement en série souvent utile en astronomie
Evaluation of triple Euler sums.
Evaluations of some variant Euler sums.
Existence et régularité höldérienne des fonctions de bosses
We discuss the almost sure existence of random functions that can be written as sums of elementary pulses. We then estimate their uniform Hölder regularity by applying some results on coverings by random intervals.
Experimental evaluation of Euler sums.
Explicit evaluations of quadruple Euler sums
Explicit evaluations of the Rogers-Ramanujan continued fraction.
Explicit summation of the constituent WKB series and new approximate wave functions.
Exponente de convergencia generalizado de una sucesión compleja.
Exponential inequalities for a class of operators.
Extended Real-Valued Double Sequence and Its Convergence
In this article we introduce the convergence of extended realvalued double sequences [16], [17]. It is similar to our previous articles [15], [10]. In addition, we also prove Fatou’s lemma and the monotone convergence theorem for double sequences.
Extending the ideal of nowhere dense subsets of rationals to a P-ideal
We show that the ideal of nowhere dense subsets of rationals cannot be extended to an analytic P-ideal, ideal nor maximal P-ideal. We also consider a problem of extendability to a non-meager P-ideals (in particular, to maximal P-ideals).
Extremal -limit points of double sequences.
Factorization of inequalities.
Fernere Bemerkung über trigonometrische Reihen
F-limit points in dynamical systems defined on the interval
Given a free ultrafilter p on ℕ we say that x ∈ [0, 1] is the p-limit point of a sequence (x n)n∈ℕ ⊂ [0, 1] (in symbols, x = p -limn∈ℕ x n) if for every neighbourhood V of x, {n ∈ ℕ: x n ∈ V} ∈ p. For a function f: [0, 1] → [0, 1] the function f p: [0, 1] → [0, 1] is defined by f p(x) = p -limn∈ℕ f n(x) for each x ∈ [0, 1]. This map is rarely continuous. In this note we study properties which are equivalent to the continuity of f p. For a filter F we also define the ω F-limit set of f at x. We consider...
F-Normalreihen.
Four dimensional matrix characterization of double oscillation via RH-conservative and RH-multiplicative matrices
In 1939 Agnew presented a series of conditions that characterized the oscillation of ordinary sequences using ordinary square conservative matrices and square multiplicative matrices. The goal of this paper is to present multidimensional analogues of Agnew’s results. To accomplish this goal we begin by presenting a notion for double oscillating sequences. Using this notion along with square RH-conservative matrices and square RH-multiplicative matrices, we will present a series of characterization...
Generalizations of the Riemann-Lebesgue and Cantor-Lebesgue lemmas
Generalizations to monotonicity for uniform convergence of double sine integrals over ℝ̅²₊
We investigate the convergence behavior of the family of double sine integrals of the form , where (u,v) ∈ ℝ²₊:= ℝ₊ × ℝ₊, ℝ₊:= (0,∞), and f: ℝ²₊ → ℂ is a locally absolutely continuous function satisfying certain generalized monotonicity conditions. We give sufficient conditions for the uniform convergence of the remainder integrals to zero in (u,v) ∈ ℝ²₊ as maxa₁,a₂ → ∞ and , j = 1,2 (called uniform convergence in the regular sense). This implies the uniform convergence of the partial integrals...