Results 21 to 30 of about 273,195 (168)
Fourier modal method for moiré lattices [PDF]
Physical Review B, 2021 In recent years twisted bi-layers of 2D materials became very popular in the field due to the possibility to totally change their electronic properties by simple rotation. At the same time, in the wide field of photonic crystals, this idea still remains almost untouched, and only some particular problems were considered.
Natalia S. Salakhova +3 more
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Karpatsʹkì Matematičnì Publìkacìï, 2020 In this paper we continue to investigate the properties of the problem with nonlocal conditions, which are multipoint perturbations of mixed boundary conditions, started in the first part.
Ya.O. Baranetskij +3 more
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Математичні Студії, 2020 The spectral properties of the nonself-adjoint problem with multipoint perturbations of the Dirichlet conditions for differential operator of order $2n$ with involution are investigated. The system of eigenfunctions of a multipoint problem is constructed.
Ya.O. Baranetskij +3 more
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Mathematical Modelling and Analysis, 2021 We consider the Mullins’ equation of a single surface grooving when the surface diffusion is not considered as very slow. This problem can be formed by a surface grooving of profiles in a finite space region.
Mansur I. Ismailov
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Boundary problem for the singular heat equation
Karpatsʹkì Matematičnì Publìkacìï, 2017 The scheme for solving of a mixed problem with general boundary conditions is proposed for a heat equation \[a(x)\frac{\partial T}{\partial \tau}= \frac{\partial}{\partial x} \left(\lambda(x)\frac{\partial T}{\partial x}\right)\] with coefficient $a(x ...
O.V. Makhnei
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Cumhuriyet Science Journal, 2019 An inverse boundary value problem for asecond-order elliptic equation with periodic and integral condition isinvestigated. The definition of a classical solution of the problem isintroduced.
N.a. Heydarzade +2 more
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Fourier Ptychographic Reconstruction Method of Self-Training Physical Model
Applied Sciences, 2023 Fourier ptychographic microscopy is a new microscopic computational imaging technology. A series of low-resolution intensity images are collected by a Fourier ptychographic microscopy system, and high-resolution intensity and phase images are ...
Xiaoli Wang +6 more
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Boundary value problems for partial differential equations with piecewise contant delay
International Journal of Mathematics and Mathematical Sciences, 1991 The influence of certain discontinuous delays on the behavior of solutions to some typical equations of mathematical physics is studied.
Joseph Wiener
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Vibration of a Flexible Hanging Chain with a Mass on the End in a Nonstationary Regime of the Motion Mechanism in Hoisting Machines [PDF]
Journal of Applied and Computational MechanicsThe article is focused on the vibrations of a heavy chain with a mass on the end when the hoisting machines are in a nonstationary regime of motion, assuming that motor or brake torque is a linear function of the speed of the motion mechanism.
Vassil Zlatanov, Svetoslav Nikolov
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Second boundary-value problem for the generalized Aller–Lykov equation
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019 The equations that describe a new type of wave motion arise in the course of mathematical modeling for continuous media with memory. This refers to differential equations of fractional order, which form the basis for most mathematical models describing a
Marat Aslanbievich Kerefov +1 more
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