Results 21 to 30 of about 13,570 (54)
The Cauchy Problem for Schrödinger Equations with Time-Dependent Hamiltonian
Bruno Pini Mathematical Analysis Seminar, 2014 We consider the Cauchy problem for a Schrödinger equation with an Hamiltonian depending also on the time variable and that may vanish at t = 0. We find optimal Levi conditions for well-posedness in Sobolev and Gevrey spaces.
Massimo Cicognani
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Boundary Value Problems, 2009 We consider the existence of countably many positive solutions for nonlinear nth-order three-point boundary value problem u(n)(t)+a(t)f(u(t))=0, t∈(0,1), u(0)=αu(η), u′(0)=⋯=u(n−2)(0)=0, u(1)=βu(η),
Yanping Guo, Yude Ji
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Advances in Nonlinear Analysis, 2023 In this article, we show continuity of commutators of Calderón-Zygmund operators [b,T]\left[b,T] with BMO functions in generalized Orlicz-Morrey spaces MΦ,φ(Rn){M}^{\Phi ,\varphi }\left({{\mathbb{R}}}^{n}). We give necessary and sufficient conditions for
Guliyev V. S. +2 more
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Boundary Value Problems, 2022 Infected individuals often obtain or lose immunity after recovery in medical studies. To solve the problem, this paper proposes a stochastic SIRS epidemic model with a general incidence rate and partial immunity. Through an appropriate Lyapunov function,
Tao Chen, Zhiming Li
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Nonlinear Analysis, 2022 In this paper, the leader-following consensus of second-order nonlinear multiagent systems (SONMASs) with external disturbances is studied. Firstly, based on terminal sliding model control method, a distributed control protocol is proposed over ...
Xue Li +3 more
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Boundary Value Problems, 2018 We consider a one-dimensional perturbation of the convolution integro-differential operator of arbitrary order on a finite interval. The inverse problem of recovering the convolution component from the spectrum is studied, provided that the perturbation ...
S. A. Buterin, S. V. Vasiliev
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Boundary Value Problems, 2020 In this paper we consider singular Sturm–Liouville problems with eigenparameter dependent boundary conditions and two singular endpoints. The spectrum of such problems can be approximated by those of the inherited restriction operators constructed.
Maozhu Zhang, Kun Li, Hongxiang Song
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MATHEMATICAL MODEL OF VOCAL SIGNALS FOR THE TASKS OF HUMAN VOCAL APPARATUS DIAGNOSTIC [PDF]
, 2017 The necessity of voiced fricative sounds processing is grounded for the problem of human vocal apparatus diagnosis.The analysis of possibility of fricative sound modeling as the determined and stationary random process is conducted.
Dediv, Leonid +2 more
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Global dynamics for an SVEIR epidemic model with diffusion and nonlinear incidence rate
Boundary Value Problems, 2022 In this paper, we investigate an SVEIR epidemic model with reaction–diffusion and nonlinear incidence. We establish the well-posedness of the solutions and the basic reproduction number R 0 $\mathfrak{R}_{0}$ .
Jinhu Xu
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A Measure Zero UDS in the Heisenberg Group
Bruno Pini Mathematical Analysis Seminar, 2016 We show that the Heisenberg group contains a measure zero set N such that every real-valued Lipschitz function is Pansu differentiable at a point of N.
Andrea Pinamonti, Gareth Speight
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