Results 21 to 30 of about 61,432 (313)
Boundary Value Problems, 2017 We study the existence and nonexistence of positive solutions for a system of nonlinear Riemann-Liouville fractional differential equations subject to multi-point boundary conditions which contain fractional derivatives.
Rodica Luca
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Nonexistence of invariant measures [PDF]
Proceedings of the American Mathematical Society, 1983 Let G G be a group acting on a set X X . Suppose that for some positive integer r r , G G contains a free group F F of rank > r > r and the intersection of any stabilizer with F F has rank ⩽
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On the nonexistence of pure multi-solitons for the quartic gKdV equation [PDF]
, 2014 We consider the quartic (nonintegrable) (gKdV) equation. Let u(t) be an outgoing 2-soliton of the equation, i.e. a solution behaving exactly as the sum of two solitons (of speeds c1 and c2) for large positive time.
Martel, Yvan, Merle, Frank
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Nonexistence and optimal decay of supersolutions to Choquard equations in exterior domains [PDF]
, 2012 We consider a semilinear elliptic problem with a nonlinear term which is the product of a power and the Riesz potential of a power. This family of equations includes the Choquard or nonlinear Schroedinger--Newton equation. We show that for some values of
Agmon +40 more
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A Perturbed Cauchy Viscoelastic Problem in an Exterior Domain
Mathematics, 2023 A Cauchy viscoelastic problem perturbed by an inverse-square potential, and posed in an exterior domain of RN, is considered under a Dirichlet boundary condition.
Bessem Samet, Calogero Vetro
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Nonlinear Analysis, 2018 We investigate the existence and nonexistence of positive solutions for a system of nonlinear Riemann–Liouville fractional differential equations with parameters and p-Laplacian operator subject to multi-point boundary conditions, which contain ...
Rodica Luca
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A Time-Fractional Differential Inequality of Sobolev Type on an Annulus
Axioms, 2023 Several phenomena from natural sciences can be described by partial differential equations of Sobolev-type. On the other hand, it was shown that in many cases, the use of fractional derivatives provides a more realistic model than the use of standard ...
Amal Alshabanat +3 more
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Novel Beings and Assisted Nonexistence [PDF]
Cambridge Quarterly of Healthcare Ethics, 2021 AbstractThis article engages with the legal regulation of end-of-existence decisionmaking for novel beings, specifically assisted nonexistence for such entities. The author explains the concept of a legal model for assisted death by reference to the substantive features of legal regimes in three jurisdictions in which assisted suicide or euthanasia is ...
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Nonexistence of Positive Solutions for Quasilinear Equations with Decaying Potentials
Mathematics, 2020 In this paper, we consider a quasilinear Schrödinger equation, which arises from the study of the superfluid film equation in plasma physics. Our main goal is to find the growth condition for nonlinear term and decaying condition for the potential ...
Ohsang Kwon
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Nonexistence of self-similar singularities for the 3D incompressible Euler equations
, 2006 We prove that there exists no self-similar finite time blowing up solution to the 3D incompressible Euler equations. By similar method we also show nonexistence of self-similar blowing up solutions to the divergence-free transport equation in $\Bbb R^n$.
A. Majda +23 more
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