Results 11 to 20 of about 274,936 (300)
On nonlinear boundary value problem corresponding to N-dimensional inverse spectral problem [PDF]
Journal of Differential Equations, 2018 We establish a relationship between an inverse optimization spectral problem for N-dimensional Schr\"odinger equation $ -\Delta \psi+q\psi=\lambda \psi $ and a solution of the nonlinear boundary value problem $-\Delta u+q_0 u=\lambda u- u^{\gamma-1},~~u ...
Yavdat S Il'yasov, N. Valeev
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A nonlinear boundary value problem
Journal of Differential Equations, 1968 P. Waltman
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Periodic solutions for an impulsive system of integro-differential equations with maxima [PDF]
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2022 A periodical boundary value problem for a first-order system of ordinary integro-differential equations with impulsive effects and maxima is investigated.
Tursun K. Yuldashev
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A singular nonlinear boundary value problem [PDF]
Pacific Journal of Mathematics, 1978 We show that the following nonlinear boundary-value problem has a positive solution: \[ \ddot{y}-y+yF(y^2,t)=0,y(0)=0=\lim_{t\to \infty}\,y(t),\dot{y}(0) \mathrm{ finite.} \] We assume that \(F\) is continuous for \(t>0\), \(y^2 \geq 0\); \(F>0\) for \(y^2 >0\); and \(\eta^{-\delta}F(\eta ,t)\) is strictly increasing in \(\eta\) for some \(\delta>0 ...
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On one nonlinear integral boundary value problem
Науковий вісник Ужгородського університету. Серія: Математика і інформатика, 2017 We give a new approach for the investigation of existence and construction of an approximate solutions of nonlinear non-autonomous systems of ordinary differential equations under nonlinear integral boundary conditions.
Я. В. Варга
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Al-Mustansiriyah Journal of Science, 2023 In this paper, our purpose is to study the classical continuous constraints boundary optimal triple control vector problem dominating nonlinear triple parabolic boundary value problem.
Yasameen H. Rashid +2 more
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Applied Mathematics Letters, 2019 In this paper, by using critical point theory, we obtain some sufficient conditions on the existence of infinitely many positive solutions of the boundary value problems for a second-order ϕ c -Laplacian difference equation. To the best of our knowledge,
Z. Zhou, Jiaoxiu Ling
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On an inverse boundary value problem for a nonlinear elastic wave equation. [PDF]
, 2019 We survey the inverse boundary value problem for a nonlinear elastic wave equation which was considered in [de Hoop, Uhlmann, Wang. Math. Ann. (2019) doi:10.1007/s00208-018-01796-y].
G. Uhlmann, J. Zhai
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Monte Carlo solution of heat conductivity problems with quadratic nonlinearity on the boundary of domain [PDF]
E3S Web of Conferences, 2023 In this work, we study the approach connected with branching Markov processes. Branching Markov random processes are created to solve boundary-value problems (BVR) with polynomial nonlinearities.
Rasulov Abdujabar +2 more
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A Counterexample in Nonlinear Boundary Value Problems [PDF]
Proceedings of the American Mathematical Society, 1972 For the boundary value problem (1.1), (1.2) below where initial value problems of (1.1) are unique and exist on (a, b) it is known that global uniqueness on (a, b) implies global existence on (a, b) if fl6 =0. It is also known that this is false if 54 0 and a6-fy=0. It is shown here by example that this is also false if /3640 and a6-fy$O.
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