Results 1 to 10 of about 618,259 (179)
Bounded solutions for a class of Hamiltonian systems
Electronic Journal of Qualitative Theory of Differential Equations, 2018 We obtain solutions bounded for all $t \in (-\infty,\infty)$ of systems of ordinary differential equations as limits of the solutions of the corresponding Dirichlet problems on $(-L,L)$, with $L \to \infty$.
Philip Korman, Guanying Peng
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Cauchy–Dirichlet Problem to Semilinear Multi-Term Fractional Differential Equations
Fractal and Fractional, 2023 In this paper, we analyze the well-posedness of the Cauchy–Dirichlet problem to an integro-differential equation on a multidimensional domain Ω⊂Rn in the unknown u=u(x,t), Dtν0(ϱ0u)−Dtν1(ϱ1u)−L1u−∫0tK(t−s)L2u(x,s)ds=f(x,t)+g(u ...
Nataliya Vasylyeva
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Multiadaptive Galerkin Methods for ODEs III: A Priori Error Estimates [PDF]
, 2006 The multiadaptive continuous/discontinuous Galerkin methods mcG(q) and mdG(q) for the numerical solution of initial value problems for ordinary differential equations are based on piecewise polynomial approximation of degree q on partitions in time with ...
Anders Logg +8 more
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A priori estimates for nonlinear elliptic complexes
Advances in Differential Equations, 2003 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
MOSCARIELLO, GIOCONDA +3 more
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A priori SNR estimation and noise estimation for speech enhancement [PDF]
EURASIP Journal on Advances in Signal Processing, 2016 A priori signal-to-noise ratio (SNR) estimation and noise estimation are important for speech enhancement. In this paper, a novel modified decision-directed (DD) a priori SNR estimation approach based on single-frequency entropy, named DDBSE, is proposed.
Yao, Rui, Zeng, ZeQing, Zhu, Ping
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A priori estimates of the mass of the burnt materials in rooms of buildings in the integral mathematical model of the initial stage of the fire [PDF]
E3S Web of Conferences, 2021 The integral mathematical model of the initial stage of a fire in the premises of buildings focuses on the problem of estimating the mass of burnt materials assuming that the data on the rate of combustion of combustible materials are not complete.
Pavlidis Victoria +3 more
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A priori estimates for the Hill and Dirac operators
, 2007 Consider the Hill operator $Ty=-y''+q'(t)y$ in $L^2(\R)$, where $q\in L^2(0,1)$ is a 1-periodic real potential. The spectrum of $T$ is is absolutely continuous and consists of bands separated by gaps $\g_n,n\ge 1$ with length $|\g_n|\ge 0$.
A. M. Savchuk +23 more
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Probabilistic square functions and a priori estimates [PDF]
Transactions of the American Mathematical Society, 1985 We obtain a priori estimates for Riesz transforms and their variants, that is, estimates with bounds independent of the dimension of the space and/or the nature of the boundary. The key to our results is to give probabilistic definitions which do not depend on the geometry of the situation for the transformations in question.
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Existence of positive solutions of elliptic equations with Hardy term
Electronic Journal of Qualitative Theory of Differential EquationsThis paper is devoted to studying the existence of positive solutions of the problem: \begin{equation} \begin{cases}\label{0.1}\tag{$\ast$} -\Delta u=\frac{u^{p}}{|x|^{a}}+h(x,u,\nabla u), & \mbox{in} \ \Omega,\\ u=0, & \mbox{on}\ \partial\Omega,\\ \end{
Huimin Yan, Junhui Xie
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Some Priori Estimates about Solutions to Nonhomogeneous A-Harmonic Equations
Journal of Inequalities and Applications, 2010 We deal with the nonhomogeneous A-harmonic equation d*A(x,g+du)=d*h and the related conjugate A-harmonic equation A(x,g+du)=h+d*v. Some priori estimates about solutions to these equations are obtained, which generalize some existing results. Particularly,
Jianmin Zhu, Jun Li
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