Results 11 to 20 of about 61,432 (313)

Sharp Contradiction for Local-Hidden-State Model in Quantum Steering [PDF]

open access: yes, 2016
In quantum theory, no-go theorems are important as they rule out the existence of a particular physical model under consideration. For instance, the Greenberger-Horne-Zeilinger (GHZ) theorem serves as a no-go theorem for the nonexistence of local hidden ...
Chen, Jing-Ling   +3 more
core   +2 more sources

Generalized Picone inequalities and their applications to (p,q)-Laplace equations

open access: yesOpen Mathematics, 2020
We obtain a generalization of the Picone inequality which, in combination with the classical Picone inequality, appears to be useful for problems with the (p,q)(p,q)-Laplace-type operators.
Bobkov Vladimir, Tanaka Mieko
doaj   +1 more source

Positive Solutions for a System of Fractional Boundary Value Problems with r-Laplacian Operators, Uncoupled Nonlocal Conditions and Positive Parameters

open access: yesAxioms, 2022
In this paper, we investigate the existence and nonexistence of positive solutions for a system of Riemann–Liouville fractional differential equations with r-Laplacian operators, subject to nonlocal uncoupled boundary conditions that contain Riemann ...
Alexandru Tudorache, Rodica Luca
doaj   +1 more source

A Time-Fractional Parabolic Inequality on a Bounded Interval

open access: yesMathematics, 2023
We study a time-fractional parabolic inequality posed on a bounded interval and involving a wight function W, where the fractional derivative is considered in the Caputo sense.
Amal Alshabanat   +3 more
doaj   +1 more source

Sharp nonexistence results for a linear elliptic inequality involving Hardy and Leray potentials [PDF]

open access: yes, 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

The Brezis–Nirenberg problem for nonlocal systems

open access: yesAdvances 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

Non-monotone positive solutions of second-order linear differential equations: existence, nonexistence and criteria

open access: yesElectronic 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

Existence and nonexistence of positive solutions to a class of nonlocal discrete Kirchhoff type equations

open access: yesAIMS Mathematics, 2023
In this paper, we investigate the existence and nonexistence of positive solutions to a class of nonlocal partial difference equations via a variant version of the mountain pass theorem.
Yuhua Long
doaj   +1 more source

Grounding nonexistence [PDF]

open access: yes, 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  

There exist no locally symmetric Finsler spaces of positive or negative flag curvature [PDF]

open access: yes, 2014
We show that the results of Foulon (1997 an 2002) and Kim (2007) (independently, Deng and Hou (2007)) about the nonexistence of locally symmetric Finsler metrics of positive or negative flag curvature are in fact ...
Matveev, Vladimir S.
core   +3 more sources

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