Results 21 to 30 of about 1,233,249 (248)

Existence and Stability of Periodic Solutions for Reaction-Diffusion Equations in the Two-Dimensional Case

Моделирование и анализ информационных систем, 2016
Parabolic singularly perturbed problems have been actively studied in recent years in connection with a large number of practical applications: chemical kinetics, synergetics, astrophysics, biology, and so on. In this work a singularly perturbed periodic
N. N. Nefedov, E. I. Nikulin
doaj   +1 more source

Asymptotic Approximation of the Solution of the Reaction-Diffusion-Advection Equation with a Nonlinear Advective Term

Моделирование и анализ информационных систем, 2018
We consider a solution in a moving front form of the initial-boundary value problem for a singularly perturbed reaction-diffusion equation in a band with periodic conditions in one of the variables.
Evgeny A. Antipov, Natalia T. Levashova, Nikolay N. Nefedov   +2 more
doaj   +1 more source

Application of the method of averaging to boundary value problems for differential equations with non-fixed moments of impulse

Karpatsʹkì Matematičnì Publìkacìï, 2022
The method of averaging is applied to study the existence of solutions of boundary value problems for systems of differential equations with non-fixed moments of impulse action.
O.M. Stanzhytskyi, R.E. Uteshova, M. Mukash, V.V. Mogylova   +3 more
doaj   +1 more source

Stability of CW Solutions of the FDML Laser

Моделирование и анализ информационных систем, 2014
The problem of existense and stability of continuous wave (CW) solutions R exp(iΛt) of a Fourier Domain Mode Locking laser model is studied. This model consists of two differential equations with delay. The delay is sufficiently large.
A. A. Kashchenko
doaj   +1 more source

Asymptotic estimates of the solution of the boundary value problem for singularly perturbed integro-differential equations

Вестник КазНУ. Серия математика, механика, информатика, 2020
The mathematical models of many processes in physics, astrophysics, chemistry, biology, mechanics and technology are differential and integro-differential equations containing small parameters at the highest derivatives.
M. Dauylbayev, N. Aviltay, B. Kadirbekov
doaj   +1 more source

Stability of the Simplest Periodic Solutions in the Stuart–Landau Equation with Large Delay

Моделирование и анализ информационных систем, 2015
We study the local dynamics of the Stuart–Landau equation with large delay in the neibourhood of periodic solutions. We find sufficient conditions of instability of periodic solutions and sufficient conditions of their stability.
A. A. Kashchenko
doaj   +1 more source

Generation a solution to the equations of elasticity theory for a layered strip basing on the principle of compressed mappings

Structural Mechanics of Engineering Constructions and Buildings, 2023
A systematic presentation of the modified classical semi-inverse SaintVenant method as an iterative one is given on the example of generating a solution to the differential equations of elasticity theory for a long layered strip.
Evgeny M. Zveryaev, Marina I. Rynkovskaya, Van Dong Hoa   +2 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Asymptotic estimations of the solution for a singularly perturbed equation with unbounded boundary conditions

Қарағанды университетінің хабаршысы. Математика сериясы, 2022
The paper studies a two-point boundary value problem with unbounded boundary conditions for a linear singularly perturbed differential equation. Asymptotic estimates are given for a linearly independent system of solutions of a homogeneous perturbed ...
N. Atakhan, K.S. Nurpeissov, K.T. Konisbayeva   +2 more
doaj   +1 more source

Pediatric Idiopathic Multicentric Castleman Disease Is Often Severe But Responsive to Siltuximab

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Idiopathic multicentric Castleman disease (iMCD) is a potentially fatal immunologic disorder marked by widespread lymphadenopathy and inflammation. Siltuximab, an interleukin‐6 (IL‐6) inhibitor, is the only FDA‐approved treatment for adult patients with iMCD.
Bridget Austin, Sheila K. Pierson, Kelley C. Dacus, Mateo Sarmiento Bustamante, Saishravan Shyamsundar, Larissa Borys, Kayla McHugh, Abiola Irvine, Yoojin Jo, Adam Bagg, Mary Jo Lechowicz, Daisy Alapat, Amy Chadburn, Megan S. Lim, Gordan Srkalovic, Frits van Rhee, David C. Fajgenbaum, Joshua D. Brandstadter   +17 more
wiley   +1 more source