Search Results - "Kofanov, V.A." :: K.UTB vyhledávací portál | TBU Library Retrieval Portal

Strengthening the Comparison Theorem and Kolmogorov Inequality in the Asymmetric Case

Strengthening the Comparison Theorem and Kolmogorov Inequality in the Asymmetric Case

by Kofanov, V.A., Sydorovych, K.D.
Published in Researches in mathematics (Online) (04.07.2022)

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Journal Article

A sharp Remez type inequalities for the functions with asymmetric restrictions on the oldest derivative

A sharp Remez type inequalities for the functions with asymmetric restrictions on the oldest derivative

by Kofanov, V.A., Zhuravel, A.V.
Published in Researches in mathematics (Online) (19.06.2023)

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The Bojanov-Naidenov problem for trigonometric polynomials and periodic splines

The Bojanov-Naidenov problem for trigonometric polynomials and periodic splines

by Asadova, E.V., Kofanov, V.A.
Published in Researches in mathematics (Online) (23.07.2019)

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Sharp inequalities of various metrics on the classes of functions with given comparison function

Sharp inequalities of various metrics on the classes of functions with given comparison function

by Alexandrova, T.V., Kofanov, V.A.
Published in Researches in mathematics (Online) (05.07.2021)

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Sharp Nagy type inequalities for the classes of functions with given quotient of the uniform norms of positive and negative parts of a function

Sharp Nagy type inequalities for the classes of functions with given quotient of the uniform norms of positive and negative parts of a function

by Kofanov, V.A., Popovich, I.V.
Published in Researches in mathematics (Online) (19.08.2020)

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An Analysis of Relations for Determining the Thermal Conductivity of Rigid Polymer Foams

An Analysis of Relations for Determining the Thermal Conductivity of Rigid Polymer Foams

by Alsabry, A., Nikitsin, V.I., Kofanov, V.A., Backiel-Brzozowska, B.
Published in International Journal of Applied Mechanics and Engineering (01.11.2018)

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Evaluation of the Influence of Wind-Driven Rain on Moisture in Cellular Concrete Wall Boards

Evaluation of the Influence of Wind-Driven Rain on Moisture in Cellular Concrete Wall Boards

by Alsabry, A., Nikitsin, V.I., Kofanov, V.A., Backiel-Brzozowska, B.
Published in International Journal of Applied Mechanics and Engineering (01.08.2017)

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Exact values of the best mean approximations by algebraic polynomials of $W^r_L$ classes ($r=1,2$)

Exact values of the best mean approximations by algebraic polynomials of $W^r_L$ classes ($r=1,2$)

by Kofanov, V.A.
Published in Researches in mathematics (Online) (06.10.2021)

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$Generalization of A.A. Ligun's inequality to $L_q$, $q \in [0, 1)$ spaces$

Generalization of A.A. Ligun's inequality to $L_q$, $q \in [0, 1)$ spaces

by Kofanov, V.A.
Published in Researches in mathematics (Online) (07.02.2021)

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Estimate of derivatives of functions on the real line in Weil spaces

Estimate of derivatives of functions on the real line in Weil spaces

by Kofanov, V.A.
Published in Researches in mathematics (Online) (29.01.2021)

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On some inequalities in various metrics for differentiable functions on real line

On some inequalities in various metrics for differentiable functions on real line

by Kofanov, V.A.
Published in Researches in mathematics (Online) (22.01.2021)

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Exact upper bounds of norms of polynomials, splines, and their derivatives on arbitrary interval

Exact upper bounds of norms of polynomials, splines, and their derivatives on arbitrary interval

by Kofanov, V.A.
Published in Researches in mathematics (Online) (13.01.2021)

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SHARP REMEZ-TYPE INEQUALITIES ESTIMATING THE [L.sub.q]-NORM OF A FUNCTION VIA ITS [L.sub.p]-NORM

SHARP REMEZ-TYPE INEQUALITIES ESTIMATING THE [L.sub.q]-NORM OF A FUNCTION VIA ITS [L.sub.p]-NORM

by Kofanov, V.A, Olexandrova, T.V
Published in Ukrainian mathematical journal (01.10.2022)

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On sharp inequality of Kolmogorov type for functions of low smoothness from the class $L_1^r(T)

On sharp inequality of Kolmogorov type for functions of low smoothness from the class $L_1^r(T)

by Kofanov, V.A., Miropolskii, V.Ye
Published in Researches in mathematics (Online) (15.02.2021)

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Journal Article

Sharp Kolmogorov–Remez-Type Inequalities for Periodic Functions of Low Smoothness

Sharp Kolmogorov–Remez-Type Inequalities for Periodic Functions of Low Smoothness

by Kofanov, V. A.
Published in Ukrainian mathematical journal (01.09.2020)

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Journal Article

Extremal problems for non-periodic splines on real domain and their derivatives

Extremal problems for non-periodic splines on real domain and their derivatives

by Danchenko, K.A., Kofanov, V.A.
Published in Researches in mathematics (Online) (23.07.2019)

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Bojanov–Naidenov Problem for Differentiable Functions on the Real Line and the Inequalities of Various Metrics

Bojanov–Naidenov Problem for Differentiable Functions on the Real Line and the Inequalities of Various Metrics

by Kofanov, V. A.
Published in Ukrainian mathematical journal (01.11.2019)

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Journal Article

On the Relationship between Sharp Kolmogorov-Type Inequalities and Sharp Kolmogorov–Remez-Type Inequalities

On the Relationship between Sharp Kolmogorov-Type Inequalities and Sharp Kolmogorov–Remez-Type Inequalities

by Kofanov, V. A.
Published in Ukrainian mathematical journal (01.09.2021)

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Journal Article

Sharp Remez-Type Inequalities of Various Metrics with Asymmetric Restrictions Imposed on the Functions

Sharp Remez-Type Inequalities of Various Metrics with Asymmetric Restrictions Imposed on the Functions

by Kofanov, V. A., Popovich, I. V.
Published in Ukrainian mathematical journal (01.12.2020)

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Inequalities of Different Metrics for Differentiable Periodic Functions

Inequalities of Different Metrics for Differentiable Periodic Functions

by Kofanov, V. A.
Published in Ukrainian mathematical journal (01.07.2015)

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