Results 71 to 80 of about 233,511 (375)

Explicit solutions of some equations and systems of mathematical physics

open access: yesAdvances in Difference Equations, 2020
This paper deals at first with a fully integrable evolution system of nonlinear partial differential equations (PDEs) which is a generalization of the classical Heisenberg ferromagnet equation.
Angela Slavova, Petar Popivanov
doaj   +1 more source

Operator compact exponential approximation for the solution of the system of 2D second order quasilinear elliptic partial differential equations

open access: yesAdvances in Differential Equations, 2019
In this paper, we suggest a new exponential implicit method based on full step discretization of order four for the solution of quasilinear elliptic partial differential equation of the form A(x,y,z)zxx+C(x,y,z)zyy=k(x,y,z,zx,zy)$A ( x,y,z ) z_{xx} +C ...
R. K. Mohanty   +2 more
semanticscholar   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

open access: yesAdvanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp   +7 more
wiley   +1 more source

Reduced-order modeling using the frequency-domain method for parabolic partial differential equations

open access: yesAIMS Mathematics, 2023
This paper suggests reduced-order modeling using the Galerkin proper orthogonal decomposition (POD) to find approximate solutions for parabolic partial differential equations.
Jeong-Kweon Seo, Byeong-Chun Shin
doaj   +1 more source

Existence of horizons in Robinson-Trautman spacetimes of arbitrary dimension

open access: yes, 2010
We derive the higher dimensional generalization of Penrose-Tod equation describing past horizon in Robinson-Trautman spacetimes with a cosmological constant and pure radiation. Results for D=4 dimensions are summarized.
Svitek, Otakar
core   +1 more source

Conformally Perforated Shellular Metamaterials with Tunable Thermomechanical and Acoustic Properties

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces Conformally Perforated Shellular Metamaterials (CPSMs), which overcome TPMS design limitations by mapping 2D cellular layouts onto 3D surfaces. CPSMs exhibit enhanced elastic stiffness, thermal conductivity, and acoustic performance compared to intact P‐type shellulars, demonstrating their potential as multifunctional ...
Benyamin Shahryari   +8 more
wiley   +1 more source

Nonclassical dynamical behavior of solutions of partial differential-difference equations

open access: yesAIMS Mathematics
For partial differential-difference equations, a review of results regarding the relation between the type of the equation and dynamical properties of its solutions is provided.
Andrey Muravnik
doaj   +1 more source

Solvability of nonlinear Dirichlet problem for a class of degenerate elliptic equations

open access: yesAbstract and Applied Analysis, 2004
We prove an existence result for solution to a class of nonlinear degenerate elliptic equation associated with a class of partial differential operators of the form Lu(x)=∑i,j=1nDj(aij(x)Diu(x)), with Dj=∂/∂xj, where aij:Ω→ℝ are functionssatisfying ...
Albo Carlos Cavalheiro
doaj   +1 more source

LOW-ENERGY ELECTRON SCATTERING IN A FORCE FIELD WITH CENTRAL SYMMETRY

open access: yesСовременная наука и инновации, 2022
In this article, we will consider another example of using the reference modeling method to find a solution to a partial differential equation, this time an elliptic one.
A. B. Cheboksarov   +2 more
doaj   +1 more source

Invasion moving boundary problem for a biofilm reactor model

open access: yes, 2017
The work presents the analysis of the free boundary value problem related to the invasion model of new species in biofilm reactors. In the framework of continuum approach to mathematical modelling of biofilm growth, the problem consists of a system of ...
D'Acunto, Berardino   +3 more
core   +1 more source

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