Results 31 to 40 of about 1,256,496 (287)

Formulation and Numerical Solution of Plane Problems of the Theory of Elasticity in Strains

open access: yesMathematics, 2023
This article is devoted to the formulation and numerical solution of boundary-value problems in the theory of elasticity with respect to deformations. Similar to the well-known Beltrami–Michell stress equations, the Saint-Venant compatibility conditions ...
Dilmurod Turimov   +3 more
doaj   +1 more source

Well-balanced finite difference WENO schemes for the blood flow model [PDF]

open access: yes, 2016
The blood flow model maintains the steady state solutions, in which the flux gradients are non-zero but exactly balanced by the source term. In this paper, we design high order finite difference weighted non-oscillatory (WENO) schemes to this model with ...
Delestre, Olivier   +2 more
core   +4 more sources

On convergence of difference schemes of high accuracy for one pseudo-parabolic Sobolev type equation

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
Difference schemes of the finite difference method and the finite element method of high-order accuracy in time and space are proposed and investigated for a pseudo-parabolic Sobolev type equation.
M.M. Aripov   +3 more
doaj   +1 more source

Model of movement of the free boundary of hydride formation in a cylindrical shell of zirconium alloy

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2019
One of the most important requirements for the materials (zirconium alloys) used in the reactor active zone is low hydrogen absorptivity, since hydrogen-induced embrittlement may cause zirconium cladding damage.
Natalia Rodchenkova, Kseniia Grudova
doaj   +1 more source

On the numerical schemes for Langevin-type equations

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
In this paper, a numerical approach is proposed based on the variation-of-constants formula for the numerical discretization Langevin-type equations. Linear and non-linear cases are treated separately.
M. Akat, R. Kosker, A. Sirma
doaj   +1 more source

Optimized explicit Runge-Kutta schemes for the spectral difference method applied to wave propagation problems [PDF]

open access: yes, 2012
Explicit Runge-Kutta schemes with large stable step sizes are developed for integration of high order spectral difference spatial discretization on quadrilateral grids.
Deconinck, W.   +2 more
core   +1 more source

Identification hyperbolic problems with the Neumann boundary condition

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
In the present study, an identification problem with the Neumann boundary condition for a one-dimensional hyperbolic equation is investigated. Stability estimates for the solution of the identification problem are established. Furthermore, a first order
A. Ashyralyev, F. Emharab
doaj   +1 more source

Stability for inhomogeneous difference schemes [PDF]

open access: yesProceedings of the American Mathematical Society, 1961
where u is a (possibly vector-valued) unknown function of a real "time" variable t and an N-dimensional real vector "space" variable x. Here A is a linear operator, constant2 in t, operating on u, where u is considered a function of x alone (i.e., A acts on elements of a linear space 63 and, for each value of t, u(., t) C 63). The function f is a known
openaire   +2 more sources

Difference schemes with point symmetries and their numerical tests

open access: yes, 2006
Symmetry preserving difference schemes approximating second and third order ordinary differential equations are presented. They have the same three or four-dimensional symmetry groups as the original differential equations. The new difference schemes are
A Bourlioux   +15 more
core   +1 more source

Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus   +6 more
wiley   +1 more source

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