on widths of periodic functions in l 2 mathematics subject classification 41a1041A10Exact values are obtained of the n-widths of 2π-periodic functions of the form $$ f(x)=\\frac{1}{2\\pi} \\int_{0}^{2\\pi}{\\mathcal{K}}(x-t)\\varphi(t){m d}t=({\\mathcal{K}}*\\...
Mean motions and zeros of generalized analytic almost periodic function, s 100 Ordinary analytic almost periodic functions . . . . . . . . . . . . 100 The Jensen function of a type of generalized analytic almost periodic funct... HML Patrick - 《Mathematics of Computation》 被引量: 27...
We consider iterative trust region algorithms for the unconstrained minimization of an objective function $F ( \\\underline{x})$ , $\\\underline{x}\\\in... M.,J.,D.,... - 《Computational Optimization & Applications》 被引量: 32发表: 2012年 An improved regula-falsi method for enclosing...
For this the extremal function of the quadrature formula is used. As well, optimal coefficients of the quadrature formula that give the minimum value to the norm of the error functional are found, and the norm of the error functional for the optimal quadrature formula is calculated. It is ...
Agrawal, O.P.: Some generalized fractional calculus operators and their applications in integral equations. Frac. Calc. Appl. Anal. 15, 700–711 (2012) Article MathSciNet MATH Google Scholar Almeida, R.: A Caputo fractional derivative of a function with respect to another function. Commun. ...
In this paper the finite difference scheme (FDS) for local approximating periodic function's derivatives in a 2n + 1, n 鈮 1 point stencil is studied, obta... H Kalis,O Lietuvietis - International Conference on International Conference on Mathematical 被引量: 2发表: 2014年 An Elementary Tr...
The authors consider the two-dimensional differential equation with piecewise constant argument x ˙(t)=-α{1-∥x(t)∥ 2 }R(θ)x([t]), where [·] means the greatest-integer function, R(θ) is a rotation matrix and α>0· The existence of a crucial value α 0 of the...
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We prove that the Fourier series of a continuous 2π-periodic function f is absolutely convergent if there exist real numbers a and δ>0 such that a-(π/2)... SF Lukomskii - 《Lecture Notes in Mathematics》 被引量: 6发表: 2003年 ...
is a fixed Carathéodory function p-almost quasi periodic in x with respect to ξ and quasi convex in ξ for every x∈R n · A homogenization theorem is proved showing that the limit functional F(u,Ω)=∫ ΩΦ(x,Du(x))dx is the gamma-limit of F (u,Ω) and the function Φ can...