Results 21 to 30 of about 5,782,798 (335)
Some convergence results for nonlinear Baskakov-Durrmeyer operators
Karpatsʹkì Matematičnì Publìkacìï, 2023 This paper is an introduction to a sequence of nonlinear Baskakov-Durrmeyer operators $(NBD_{n})$ of the form \[ (NBD_{n})(f;x) =\int_{0}^\infty K_{n}(x,t,f(t))\,dt \] with $x\in [0,\infty)$ and $n\in\mathbb{N}$.
H.E. Altin
doaj +1 more source
Variation Inequalities for the Hardy-Littlewood Maximal Function on Finite Directed Graphs
Mathematics, 2022 In this paper, the authors establish the bounds for the Hardy-Littlewood maximal operator defined on a finite directed graph G→ in the space BVp(G→) of bounded p-variation functions.
Feng Liu, Xiao Zhang
doaj +1 more source
On ordered Λ-bounded variation [PDF]
Proceedings of the American Mathematical Society, 1990 An example is given of a continuous real function that is of ordered Λ \Lambda -bounded variation but not of Λ \Lambda -bounded variation. No special assumptions on Λ \Lambda are required.
openaire +1 more source
On Ordered Harmonic Bounded Variation [PDF]
Proceedings of the American Mathematical Society, 1980 An example is given of a continuous real function that is of ordered harmonic bounded variation but not of harmonic bounded variation.
openaire +2 more sources
High-Order Total Bounded Variation Model and Its Fast Algorithm for Poissonian Image Restoration
Mathematical Problems in Engineering, 2019 In this paper, a new model for image restoration under Poisson noise based on a high-order total bounded variation is proposed. Existence and uniqueness of its solution are proved. To find the global optimal solution of our strongly convex model, a split
Jun Zhang +3 more
semanticscholar +1 more source
Functions of Bounded κφ-Variation in the Sense of Riesz-Korenblum
Journal of Function Spaces and Applications, 2013 We present the space of functions of bounded κφ-variation in the sense of Riesz-Korenblum, denoted by κBVφ[a,b], which is a combination of the notions of bounded φ-variation in the sense of Riesz and bounded κ-variation in the sense of Korenblum ...
Mariela Castillo +3 more
doaj +1 more source
The cohomological equation for Roth type interval exchange maps [PDF]
, 2004 We exhibit an explicit full measure class of minimal interval exchange maps T for which the cohomological equation $\Psi -\Psi\circ T=\Phi$ has a bounded solution $\Psi$ provided that the datum $\Phi$ belongs to a finite codimension subspace of the space
Marmi, Stefano +2 more
core +4 more sources
Explicit expanders with cutoff phenomena [PDF]
, 2010 The cutoff phenomenon describes a sharp transition in the convergence of an ergodic finite Markov chain to equilibrium. Of particular interest is understanding this convergence for the simple random walk on a bounded-degree expander graph.
Lubetzky, Eyal, Sly, Allan
core +1 more source
Analysis and Geometry in Metric Spaces, 2018 We study an inhomogeneous Neumann boundary value problem for functions of least gradient on bounded domains in metric spaces that are equipped with a doubling measure and support a Poincaré inequality.
Lahti Panu +2 more
doaj +1 more source
Generalized Bounded Variation and Inserting point masses [PDF]
, 2008 Let $d\mu$ be a probability measure on the unit circle and $d\nu$ be the measure formed by adding a pure point to $d\mu$. We give a simple formula for the Verblunsky coefficients of $d\nu$ based on a result of Simon.
Wong, Manwah Lilian
core +2 more sources