Results 21 to 30 of about 7,949 (154)

Cluster structures for the A∞$A_\infty$ singularity

open access: yesJournal of the London Mathematical Society, Volume 107, Issue 6, Page 2121-2149, June 2023., 2023
Abstract We study a category C2$\mathcal {C}_2$ of Z$\mathbb {Z}$‐graded maximal Cohen‐Macaulay (MCM) modules over the A∞$A_\infty$ curve singularity and demonstrate that it has infinite type A$A$ cluster combinatorics. In particular, we show that this Frobenius category (or a suitable subcategory) is stably equivalent to the infinite type A$A$ cluster
Jenny August   +4 more
wiley   +1 more source

Risk aversion and information aggregation in binary‐asset markets

open access: yesQuantitative Economics, Volume 14, Issue 2, Page 753-798, May 2023., 2023
We investigate how risk aversion (RA) shapes the informative content of prices in an experimental asset market, where traders are sorted according to their RA. RA should induce steeper individual demands and, under its most common parametrizations, drive equilibrium prices closer to revealing the state.
Antonio Filippin, Marco Mantovani
wiley   +1 more source

Adaptively implicit MPDATA advection for arbitrary Courant numbers and meshes

open access: yesQuarterly Journal of the Royal Meteorological Society, Volume 149, Issue 751, Page 369-388, January 2023 Part B., 2023
An adaptive implicit version of MPDATA is stable for all Courant numbers and maintains the accuracy of explicit time stepping where Courant numbers are low and reverts to first‐order accuracy for large Courant numbers. The figure shows a tracer (coloured) advected over the poles of a rotated latitude–longitude mesh by deformational flow.
Hilary Weller   +3 more
wiley   +1 more source

Infinitely many solutions for a gauged nonlinear Schrödinger equation with a perturbation

open access: yesNonlinear Analysis, 2021
In this paper, we use the Fountain theorem under the Cerami condition to study the gauged nonlinear Schrödinger equation with a perturbation in R2. Under some appropriate conditions, we obtain the existence of infinitely many high energy solutions for ...
Jiafa Xu, Jie Liu, Donal O'Regan
doaj   +1 more source

Infinitely many solutions for quasilinear Schrödinger equations with sign-changing nonlinearity without the aid of 4-superlinear at infinity

open access: yesDemonstratio Mathematica, 2022
In this article, we will prove the existence of infinitely many solutions for a class of quasilinear Schrödinger equations without assuming the 4-superlinear at infinity on the nonlinearity. We achieve our goal by using the Fountain theorem.
Khiddi Mustapha, Essafi Lakbir
doaj   +1 more source

Existence and Multiplicity of Nontrivial Solutions for a Class of Fourth-Order Elliptic Equations

open access: yesAbstract and Applied Analysis, 2013
Using the Fountain theorem and a version of the Local Linking theorem, we obtain some existence and multiplicity results for a class of fourth-order elliptic equations.
Chun Li, Zeng-Qi Ou, Chun-Lei Tang
doaj   +1 more source

Multiplicity of Homoclinic Solutions for Fractional Hamiltonian Systems with Subquadratic Potential

open access: yesEntropy, 2017
In this paper, we study the existence of homoclinic solutions for the fractional Hamiltonian systems with left and right Liouville–Weyl derivatives. We establish some new results concerning the existence and multiplicity of homoclinic solutions for the ...
Neamat Nyamoradi   +3 more
doaj   +1 more source

Infinitely many weak solutions of the p-Laplacian equation with nonlinear boundary conditions. [PDF]

open access: yesScientificWorldJournal, 2014
We study the following p-Laplacian equation with nonlinear boundary conditions: -Δpu+μ(x)|u|p-2u=f(x,u)+g(x,u),  x∈Ω,|∇u|p-2∂u/∂n=η|u|p-2u and x∈∂Ω,   where Ω is a bounded domain in ℝN with smooth boundary ∂Ω.
Lu FY, Deng GQ.
europepmc   +2 more sources

Existence and Multiplicity of Homoclinic Orbits for Second-Order Hamiltonian Systems with Superquadratic Potential

open access: yesAbstract and Applied Analysis, 2013
We investigate the existence and multiplicity of homoclinic orbits for second-order Hamiltonian systems with local superquadratic potential by using the Mountain Pass Theorem and the Fountain Theorem, respectively.
Ying Lv, Chun-Lei Tang
doaj   +1 more source

Infinitely Many Fast Homoclinic Solutions for Damped Vibration Systems with Combined Nonlinearities [PDF]

open access: yesSahand Communications in Mathematical Analysis
This article  concerns the existence of fast homoclinic solutions for the following damped vibration system\begin{equation*}\frac{d}{dt}(P(t)\dot{u}(t))+q(t)P(t)\dot{u}(t)-L(t)u(t)+\nabla W(t,u(t))=0,\end{equation*}where $P,L\in C\left(\mathbb{R},\mathbb{
Mohsen Timoumi
doaj   +1 more source

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