Results 61 to 70 of about 20,112 (145)

Nonlinear Periodic Systems with the p-Laplacian: Existence and Multiplicity Results

Abstract and Applied Analysis, 2007
We study second-order nonlinear periodic systems driven by the vector p-Laplacian with a nonsmooth, locally Lipschitz potential function. Under minimal and natural hypotheses on the potential and using variational methods based on the nonsmooth critical ...
Francesca Papalini
doaj   +1 more source

Quantum query complexity of Boolean functions under indefinite causal order

Physical Review Research
The standard model of quantum circuits assumes operations are applied in a fixed sequential “causal” order. In recent years, the possibility of relaxing this constraint to obtain causally indefinite computations has received significant attention.
Alastair A. Abbott, Mehdi Mhalla, Pierre Pocreau   +2 more
doaj   +1 more source

Exponential stability of wave equations with potential and indefinite damping

Journal of Differential Equations, 2007
The paper concentrates on the exponential stability of the linear \[ u_{tt} - u_{xx} +a(t)u_t +b(x)u =0 \] and nonlinear \[ u_{tt} -f(u_x)x +a(x)u_t + b(x)u =0 \] wave equations, the solution satisfying initial and Dirichlet boundary conditions on a bounded interval \((0,L)\).
openaire   +3 more sources

Informativity, information status and the accessibility of indefinite noun phrases

Glossa
In discourse processing, speakers collaborate toward a shared mental model by introducing discourse referents and picking them up with the adequate linguistic forms.
Andreas Brocher, Frederike Weeber, Jet Hoek, Klaus von Heusinger   +3 more
doaj   +2 more sources

Reconstructing the potential function for indefinite Sturm-Liouville problems using infinite product forms

Electronic Journal of Differential Equations, 2013
In this article we consider the linear second-order equation of Sturm-Liouville type $$ y''+(lambdaphi^2(t)-q(t))y=0, quad 0leq tleq 1, $$ where $lambda$ is a real parameter, $q(t)$ is the potential function and $phi^2(t)$ is the weight function ...
Mohammad Dehghan, Ali Asghar Jodayree
doaj  

An Abstract Linking Theorem Applied to Indefinite Problems Via Spectral Properties

Advanced Nonlinear Studies, 2019
An abstract linking result for Cerami sequences is proved without the Cerami condition. It is applied directly in order to prove the existence of critical points for a class of indefinite problems in infinite-dimensional Hilbert Spaces.
Maia Liliane A., Soares Mayra
doaj   +1 more source

Obstacles to Macrosecuritization of Global Threats: Cases of Nuclear Weapons and Climate Change

Сравнительная политика
Despite the multitude of attempts to macrosecuritize nuclear weapons and climate change, none of them has succeeded so far. Existing studies struggle to convincingly explain these failures, which can be attributed both to the general neglect of ...
Ye. I. Uchaev, A. A. Kvartalnov
doaj   +1 more source

Existence of solutions to quasilinear Schrödinger equations with indefinite potential

Electronic Journal of Differential Equations, 2015
Summary: In this article, we study the existence and multiplicity of solutions of the quasilinear Schrodinger equation \[ -u''+V(x)u-(|u| ^2)''u=f(u) \] on \(\mathbb{R}\), where the potential \(V\) allows sign changing and the nonlinearity satisfies conditions weaker than the classical Ambrosetti-Rabinowitz condition. By a local linking theorem and the
Zupei Shen, Zhiqing Han
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Probabilistic channel distillation via indefinite causal order

Physical Review Research
The quantum switch has been widely studied as a prototypical example of indefinite causal order in quantum information processing. However, the potential advantages of utilizing more general forms of indefinite causal orders remain largely unexplored. We
Spiros Kechrimparis, James Moran, Hyukjoon Kwon   +2 more
doaj   +1 more source

Ito's diffusion in multidimensional scattering with sign-indefinite potentials

, 2011
preprint
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