summary:Given a modulus of continuity $\omega$ and $q \in[1, \infty[ $ then $H_q^\omega$ denotes the space of all functions $f$ with the period $1$ on $\R$ that are locally integrable in power $q$ and whose integral modulus of continuity of power $q$ (see(1)) is majorized by a multiple of $ \omega$. The moduli of continuity $ \omega$ are characterized for which $H_q^\omega$ contains "many" functions with infinite "essential" variation on an interval of length $1$
Some sharp estimates of the Lp1≤p<∞ modulus of continuity of classes of Λφ-bounded variation are obt...
summary:We prove that for a normed linear space $ X $, if $ f_1\colon X\to\mathbb{R} $ is continuous...
summary:The space $\mathcal {HK}$ of Henstock-Kurzweil integrable functions on $[a,b]$ is the uncoun...
summary:Given a modulus of continuity $\omega$ and $q \in[1, \infty[ $ then $H_q^\omega$ denotes the...
We show that, for a class of moduli functions ω(δ), 0 ≤ δ ≤ 2, the property |ϕ(ξ) − ϕ(η) | ≤ ω(|ξ ...
Let $f$ be a function from $\mathbf{R}^p$ to $\mathbf{R}^q$ and let $\Lambda$ be a finite set of pai...
AbstractSome aspects of the interplay between approximation properties of analytic functions and the...
summary:The author proved in 2018 that if $ G $ is an open subset of a Hilbert space, $ f_1,f_2\colo...
AbstractA necessary and sufficient condition is obtained for (Cω, Cω) multipliers in the case of a s...
In the paper, we estimate the uniform norm of a function defined on the real line and having zero in...
summary:It is shown that a Banach-valued Henstock-Kurzweil integrable function on an $m$-dimensional...
We prove global $W^{1,q}(\Omega,\mathbb{R}^m)$-regularity for minimisers of convex functionals of th...
In this paper, we have proved four theorems on the degree of approximation ofcontinuous functions by...
summary:If $f:[0,1]\to{\Bbb R}$ is strictly increasing and continuous define $T_fx=f(x)\, (\operator...
We approximate a globally measurable multifunction F(t,x) which takes compact values in a euclidean ...
Some sharp estimates of the Lp1≤p<∞ modulus of continuity of classes of Λφ-bounded variation are obt...
summary:We prove that for a normed linear space $ X $, if $ f_1\colon X\to\mathbb{R} $ is continuous...
summary:The space $\mathcal {HK}$ of Henstock-Kurzweil integrable functions on $[a,b]$ is the uncoun...
summary:Given a modulus of continuity $\omega$ and $q \in[1, \infty[ $ then $H_q^\omega$ denotes the...
We show that, for a class of moduli functions ω(δ), 0 ≤ δ ≤ 2, the property |ϕ(ξ) − ϕ(η) | ≤ ω(|ξ ...
Let $f$ be a function from $\mathbf{R}^p$ to $\mathbf{R}^q$ and let $\Lambda$ be a finite set of pai...
AbstractSome aspects of the interplay between approximation properties of analytic functions and the...
summary:The author proved in 2018 that if $ G $ is an open subset of a Hilbert space, $ f_1,f_2\colo...
AbstractA necessary and sufficient condition is obtained for (Cω, Cω) multipliers in the case of a s...
In the paper, we estimate the uniform norm of a function defined on the real line and having zero in...
summary:It is shown that a Banach-valued Henstock-Kurzweil integrable function on an $m$-dimensional...
We prove global $W^{1,q}(\Omega,\mathbb{R}^m)$-regularity for minimisers of convex functionals of th...
In this paper, we have proved four theorems on the degree of approximation ofcontinuous functions by...
summary:If $f:[0,1]\to{\Bbb R}$ is strictly increasing and continuous define $T_fx=f(x)\, (\operator...
We approximate a globally measurable multifunction F(t,x) which takes compact values in a euclidean ...
Some sharp estimates of the Lp1≤p<∞ modulus of continuity of classes of Λφ-bounded variation are obt...
summary:We prove that for a normed linear space $ X $, if $ f_1\colon X\to\mathbb{R} $ is continuous...
summary:The space $\mathcal {HK}$ of Henstock-Kurzweil integrable functions on $[a,b]$ is the uncoun...