An Efficient Numerical Method for the Fractional Bagley–Torvik Equation of Variable Coefficients with Robin Boundary Conditions by S. Joe Christin Mary, Sekar Elango, Muath Awadalla, Rabab Alzahrani

“…In this paper, we propose a numerical method for the fractional Bagley–Torvik equation of variable coefficients with Robin boundary conditions. The problem is approximated using a finite difference scheme on a uniform mesh that combines the L1 scheme with central differences. …”
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Holmgren problem for Helmholtz equation with the three singular coefficients by Davlatjon R. Muydinjanov

Subjects: “…holmgren problem…”
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The Dirichlet problem for elliptic equation with several singular coefficients by Tuhtasin G. Ergashev

Subjects: “…dirichlet problem…”
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Efficient Humanitarian Logistics: Multi-Commodity Location–Inventory Model Incorporating Demand Probability and Consumption Coefficients by Majid Mehrabi Delshad, Adel Pourghader Chobar, Peiman Ghasemi, Davoud Jafari

“…<i>Conclusions</i>: To maximize the efficiency and quality of the service, first, the model was numerically solved, and then the location where the most commodities could be transported at the lowest possible cost was identified.…”
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On the Control of Coefficient Function in a Hyperbolic Problem with Dirichlet Conditions by Seda İğret Araz, Murat Subaşi

“…This paper presents theoretical results about control of the coefficient function in a hyperbolic problem with Dirichlet conditions. …”
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On an Optimal -Control Problem in Coefficients for Linear Elliptic Variational Inequality by Olha P. Kupenko, Rosanna Manzo

“…We take the matrix-valued coefficients in the main part of the elliptic operator as controls in . …”
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On regularization of a summary equation with holomorphic coefficients by F.N. Garifyanov, E.V. Strezhneva

“…A six-element linear summary equation in the class of functions that are holomorphic outside D and vanish at infinity is considered. The coefficients of the equation and the free term are holomorphic in D. …”
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A Method for Predicting Efficiency of Perforated Muzzle Brakes by Marta CZYŻEWSKA, Radosław TRĘBIŃSKI

“…This paper presents a method for predicting a value of a gasdynamic efficiency coefficient for perforated muzzle brakes. …”
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Coefficient problem for certain subclasses of bi-univalent functions defined by convolution by Altınkaya Sahsene, Yalçın Sibel

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On the initial value problem for a partial differential equation with operator coefficients by Mahmoud M. El-Borai

“…In the present work it is studied the initial value problem for an equation of the form L∂ku∂tk=∑j=1kLj∂k−ju∂tk−j,where L is an elliptic partial differential operator and (Lj:j=1,…,k) is a family of partial differential operators with bounded operator coefficients in a suitable function space. …”
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Inverse Source Problem for a Singular Parabolic Equation with Variable Coefficients by Xue Qin, Shumin Li

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Sharp bounds of logarithmic coefficient problems for functions with respect to symmetric points by N. H. Mohammed

“…Due to the significance of the recent studies about the logarithmic coefficients, the problem of obtaining the sharp bounds for the second Hankel determinant of these coefficients, that is $H_{2,1}(F_f/2)$ was paid attention. …”
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Econometric Modeling Combining MCMC Algorithm and Random Coefficient Quantile AR Model by Ting Wang

“…The current econometric models have the disadvantages of low prediction accuracy and poor model fitting effect. To solve these problems, this study combines Markov chain Monte Carlo algorithm with random coefficient quantile auto-regression model, and optimizes the econometric model based on the fusion algorithm. …”
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Results of the evaluation of the unlined reclamation canals efficiency by Viktoria F. Talalaeva, Oleg A. Baev

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Cycle mechanical coefficient of useful effect of motor-transmission installations of transportation and tractor vehicles by Podrigalo Mikhail, Podrigalo Nadia, Serhii Vakhniuk, Vladyslav Bish

“… Problem. When determining the efficiency coefficient of the motor-transmission systems of cars and tractors, it is necessary to consider not only the losses due to viscous and dry friction but also the losses caused by the circulation of potential and kinetic energy within the transmission. …”
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CALCULATION OF WEIGHT COEFFICIENTS IN CONTINUOUS PARTICLE FILTER by K. A. Rybakov

Subjects: “…weight coefficient…”
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Definition of the Complex Refractive Index of an Etalon for Measuring the Reflection Coefficient by V.I. Shkaleto, G.I. Kopach, R.V. Zaitsev

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The Gini coefficient and discontinuity by Jens Peter Kristensen

“…This implies a more careful attitude when interpreting the value of a Gini coefficient. A further problem is that if you have estimated a Lorenz curve from empirical data,then you cannot trust that the associated distribution is a good estimate of the true income distribution.…”
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Approximation of an Optimal BV -Control Problem in the Coefficient for the p(x)-Laplace Equation by Ismail Aydin, Peter Kogut

Subjects: “…nonlinear dirichlet problem…”
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A Regularization of the Backward Problem for Nonlinear Parabolic Equation with Time-Dependent Coefficient by Pham Hoang Quan, Le Minh Triet, Dang Duc Trong

“…We study the backward problem with time-dependent coefficient which is a severely ill-posed problem. …”
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