Results 21 to 30 of about 61,340 (312)
The Brezis–Nirenberg problem for nonlocal systems
Advances in Nonlinear Analysis, 2016 By means of variational methods we investigate existence, nonexistence as well as regularity of weak solutions for a system of nonlocal equations involving the fractional laplacian operator and with nonlinearity reaching the critical growth and ...
Faria Luiz F. O. +4 more
doaj +1 more source
Electronic Journal of Qualitative Theory of Differential Equations, 2016 We study non-monotone positive solutions of the second-order linear differential equations: $(p(t)x')' + q(t) x = e(t)$, with positive $p(t)$ and $q(t)$. For the first time, some criteria as well as the existence and nonexistence of non-monotone positive
Mervan Pašić, Satoshi Tanaka
doaj +1 more source
AIMS Mathematics, 2022 We consider a fractional differential inequality involving $ \psi $-Caputo fractional derivatives of different orders, with a polynomial nonlinearity and a singular potential term.
Ibtisam Aldawish +2 more
doaj +1 more source
Sharp nonexistence results for a linear elliptic inequality involving Hardy and Leray potentials [PDF]
, 2010 In this paper we deal with nonnegative distributional supersolutions for a class of linear elliptic equations involving inverse-square potentials and logarithmic weights.
Fall, Mouhamed Moustapha +1 more
core +4 more sources
, 2020 Contingent negative existentials give rise to a notorious paradox. I formulate a version in terms of metaphysical grounding: nonexistence can't be fundamental, but nothing can ground it.
Muñoz, Daniel
core
RETRACTED: Artificial intelligence for emergency medical care
Health Care Science, EarlyView., 2023 ‘Applications of artificial intelligence in emergency medical service’. Abstract There is increasing research into the potential benefits of incorporating artificial intelligence (AI) and machine learning algorithms into emergency medical services. AI is finding new applications across a wide range of sectors, one of which is healthcare, where it is ...
Shivam Rajput +2 more
wiley +1 more source
On fractional Choquard equations [PDF]
, 2014 We investigate a class of nonlinear Schrodinger equations with a generalized Choquard nonlinearity and fractional diffusion. We obtain regularity, existence, nonexistence, symmetry as well as decays properties.Comment: revised version, 22 ...
Bongers A. +8 more
core +2 more sources
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
doaj +1 more source
Nonexistence of distributional supersolutions of a semilinear elliptic equation with Hardy potential [PDF]
, 2012 In this paper we study nonexistence of non-negative distributional supersolutions for a class of semilinear elliptic equations involving inverse-square potentials.Comment: Some of the main results are improved.
Fall, Mouhamed Moustapha
core +2 more sources
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
doaj +1 more source