Results 1 to 10 of about 218,727 (118)

On Landau-Kolmogorov type inequalities for charges and their applications

Researches in Mathematics, 2023
In this article we prove sharp Landau-Kolmogorov type inequalities on a class of charges defined on Lebesgue measurable subsets of a cone in $\mathbb{R}^d$, $d\geqslant 1$, that are absolutely continuous with respect to the Lebesgue measure.
V.F. Babenko, V.V. Babenko, O.V. Kovalenko, N.V. Parfinovych   +3 more
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Determination of melamine and its conjugates in calcium oxalate stones by Fourier transform infrared spectroscopy

Shanghai yufang yixue, 2022
ObjectiveTo establish a method of two-times second derivative Fourier transform infrared spectroscopy （FTIR） for identifying melamine （MEL） and its conjugates with cyanuric acid （MEL-CYA） or with uric acid （MEL-UA） in human urinary calculi.MethodsMEL ...
WANG Xinyu, LONG Qilai, WANG Luning, MA Liujin, XU Jiani, LIU Ting, WANG Yifei, HUANG Feifei, GUO Jianming, CHEN Bo, CHEN Liang   +10 more
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Investigation to analytic solutions of modified conformable time–space fractional mixed partial differential equations

Partial Differential Equations in Applied Mathematics, 2022
In this paper, the invariant subspace method (ISM) is developed to obtain the exact solution of linear and nonlinear time and space fractional mixed partial differential equations involving modified conformable fractional derivative (MCFD). Moreover, the
Chavda Divyesh Vinodbhai, Shruti Dubey
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Sturm-Liouville Problem with Mixed Boundary Conditions for a Differential Equation with a Fractional Derivative and Its Application in Viscoelasticity Models

Axioms, 2023
In this study, we obtained a system of eigenfunctions and eigenvalues for the mixed homogeneous Sturm-Liouville problem of a second-order differential equation containing a fractional derivative operator.
Ludmila Kiryanova, Tatiana Matseevich
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Interpolation theorem for Nikol’skii-Besov type spaceswith mixed metric

Қарағанды университетінің хабаршысы. Математика сериясы, 2020
In this paper we study the interpolation properties of Nikol’skii-Besov spaces with a dominant mixed derivative and mixed metric with respect to anisotropic and complex interpolation methods.
K.A. Bekmaganbetov, K.Ye. Kervenev, Ye. Toleugazy   +2 more
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Generalized initial-boundary problem for the wave equation with mixed derivative

Современная математика: Фундаментальные направления, 2023
We study an initial-boundary problem for a second-order inhomogeneous hyperbolic equation in a half-strip of the plane containing a mixed derivative with constant coefficients and zero or nonzero potential.
V. S. Rykhlov
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Damping problem for the hyperbolic equation with mixed derivative

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
The boundary control problem for the hyperbolic equation with mixed derivative was considered in the rectangular region. The control functions were constructed in an explicit form.
Elena A Kozlova
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Approximate Symmetries and Conservation Laws for Mechanical Systems Described by Mixed Derivative Perturbed PDEs

Журнал інженерних наук, 2023
This article focuses on developing and applying approximation techniques to derive conservation laws for the Timoshenko–Prescott mixed derivatives perturbed partial differential equations (PDEs).
Shamaoon A., Agarwal P., Cesarano C., Jain S.   +3 more
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Boundary control for the processes, described by hyperbolic systems

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The boundary control problem for the system of hyperbolic equations with the mixed derivative is considered.The control is provided by the displacement (in the conditions of the first boundary-value problem).The coefficient matrices of different ...
Aleksandr Anatol'evich Andreev, Elena Alexandrovna Kozlova, Svetlana Valentinovna Leksina   +2 more
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TOPOLOGICAL DERIVATIVE - THEORY AND APPLICATIONS

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2015
The paper is devoted to present some mathematical aspects of the topological derivative and its applications in different fields of sciences such as shape optimization and inverse problems.
Katarzyna Szulc
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