We prove sharp inequalities of various metrics for the norms $$$\| x \|_{p, \delta}$$$ of differentiable functions defined on the real line, trigonometric polynomials and periodic splines.Доказаны точные неравенства разных метрик для норм $$$\| x \|_{p, \delta}$$$ дифференцируемых функций на оси, тригонометрических полиномов и периодических сплайнов.Доведенi точнi нерiвностi рiзних метрик для норм $$$\| x \|_{p, \delta}$$$ диференцiйовних функцiй на вісi, тригонометричних полiномiв та перiодичних сплайнiв
For non-periodic functions $$$x \in L^r_{\infty}(\mathbb{R})$$$ defined on the whole real line we es...
The sharp inequality of Kolmogorov type has been obtained in the space $$$\mathfrak{B}(U_2)$$$ for f...
New sharp Bernstein type inequalities in the space $$$L_2(\mathbb{R})$$$ for the differences of non-...
New sharp Bernstein type inequalities of different metrics in spaces of integrable functions for non...
We establish sharp estimates of the $$$L_q$$$-norms on any finite interval for the polynomials and s...
We prove new sharp Remez-type inequalities of various metrics for periodic functions, polynomials an...
We obtain upper bound of the best approximation of the classes $$$H^{\omega} [a, b]$$$ by piecewise-...
On the classes $$$L^r_2$$$, where $$$r\in {\mathbb{Z}}_+$$$, exact constants of Jackson type inequal...
We obtain the estimates of the seminorms of Weil of the functions on the real line and their derivat...
New sharp estimate concerning distance function in certain Bergman-type spaces of analytic functions...
We prove new sharp Remez-type inequalities of various metrics on the sets of functions with a given ...
Доказаны точные неравенства разных метрик для норм $\| x \|_{p, \delta}$ дифференцируемых функций на...
We obtain certain inequalities of Jackson type, connecting the value of the best approximation of pe...
Order estimates of deviation for special rational operators in integral and uniform metric of space ...
For the norms of fractional Hadamard derivatives of functions defined on the half-line, the sharp Ko...
For non-periodic functions $$$x \in L^r_{\infty}(\mathbb{R})$$$ defined on the whole real line we es...
The sharp inequality of Kolmogorov type has been obtained in the space $$$\mathfrak{B}(U_2)$$$ for f...
New sharp Bernstein type inequalities in the space $$$L_2(\mathbb{R})$$$ for the differences of non-...
New sharp Bernstein type inequalities of different metrics in spaces of integrable functions for non...
We establish sharp estimates of the $$$L_q$$$-norms on any finite interval for the polynomials and s...
We prove new sharp Remez-type inequalities of various metrics for periodic functions, polynomials an...
We obtain upper bound of the best approximation of the classes $$$H^{\omega} [a, b]$$$ by piecewise-...
On the classes $$$L^r_2$$$, where $$$r\in {\mathbb{Z}}_+$$$, exact constants of Jackson type inequal...
We obtain the estimates of the seminorms of Weil of the functions on the real line and their derivat...
New sharp estimate concerning distance function in certain Bergman-type spaces of analytic functions...
We prove new sharp Remez-type inequalities of various metrics on the sets of functions with a given ...
Доказаны точные неравенства разных метрик для норм $\| x \|_{p, \delta}$ дифференцируемых функций на...
We obtain certain inequalities of Jackson type, connecting the value of the best approximation of pe...
Order estimates of deviation for special rational operators in integral and uniform metric of space ...
For the norms of fractional Hadamard derivatives of functions defined on the half-line, the sharp Ko...
For non-periodic functions $$$x \in L^r_{\infty}(\mathbb{R})$$$ defined on the whole real line we es...
The sharp inequality of Kolmogorov type has been obtained in the space $$$\mathfrak{B}(U_2)$$$ for f...
New sharp Bernstein type inequalities in the space $$$L_2(\mathbb{R})$$$ for the differences of non-...