Results 11 to 20 of about 1,175 (77)

E8 spectral curves

open access: yesProceedings of the London Mathematical Society, Volume 121, Issue 4, Page 954-1032, October 2020., 2020
Abstract I provide an explicit construction of spectral curves for the affine E8 relativistic Toda chain. Their closed‐form expression is obtained by determining the full set of character relations in the representation ring of E8 for the exterior algebra of the adjoint representation; this is in turn employed to provide an explicit construction of ...
Andrea Brini
wiley   +1 more source

Global well-posedness analysis for the nonlinear extensible beam equations in a class of modified Woinowsky-Krieger models

open access: yesAdvanced Nonlinear Studies, 2022
For studying the evolution of the transverse deflection of an extensible beam derived from the connection mechanics, we investigate the initial boundary value problem of nonlinear extensible beam equation with linear strong damping term, nonlinear weak ...
Yang Chao   +3 more
doaj   +1 more source

Semiclassical resolvent estimates at trapped sets [PDF]

open access: yes, 2012
We extend our recent results on propagation of semiclassical resolvent estimates through trapped sets when a priori polynomial resolvent bounds hold. Previously we obtained non-trapping estimates in trapping situations when the resolvent was sandwiched ...
Datchev, Kiril, Vasy, András
core   +5 more sources

Reconstructing The Moore-Gibson-Thompson Equation

open access: yesNonautonomous Dynamical Systems, 2020
We are concerned with the inverse problem of recovering a third order Moore-Gibson-Thompson equation from a single observation of its solution at an arbitrary point.
Al-Khulaifi Waled, Boumenir Amin
doaj   +1 more source

A note on the cone restriction conjecture in the cylindrically symmetric case [PDF]

open access: yes, 2008
In this note, we present two arguments showing that the classical \textit{linear adjoint cone restriction conjecture} holds for the class of functions supported on the cone and invariant under the spatial rotation in all dimensions. The first is based on
Shao, Shuanglin
core   +3 more sources

Blow-up for logarithmic viscoelastic equations with delay and acoustic boundary conditions

open access: yesAdvances in Nonlinear Analysis, 2023
In the present work, we establish a blow-up criterion for viscoelastic wave equations with nonlinear damping, logarithmic source, delay in the velocity, and acoustic boundary conditions.
Park Sun-Hye
doaj   +1 more source

Inverse problems for nonlinear hyperbolic equations with disjoint sources and receivers

open access: yesForum of Mathematics, Pi, 2021
The article studies inverse problems of determining unknown coefficients in various semi-linear and quasi-linear wave equations given the knowledge of an associated source-to-solution map.
Ali Feizmohammadi   +2 more
doaj   +1 more source

Improved time-decay for a class of scaling critical electromagnetic Schr\"odinger flows [PDF]

open access: yes, 2015
We consider a Schr\"odinger hamiltonian $H(A,a)$ with scaling critical and time independent external electromagnetic potential, and assume that the angular operator $L$ associated to $H$ is positive definite.
Fanelli, Luca   +2 more
core   +2 more sources

On the critical behavior for inhomogeneous wave inequalities with Hardy potential in an exterior domain

open access: yesAdvances in Nonlinear Analysis, 2021
We study the wave inequality with a Hardy ...
Jleli Mohamed   +2 more
doaj   +1 more source

On Carleman and observability estimates for wave equations on time‐dependent domains

open access: yesProceedings of the London Mathematical Society, Volume 119, Issue 4, Page 998-1064, October 2019., 2019
Abstract We establish new Carleman estimates for the wave equation, which we then apply to derive novel observability inequalities for a general class of linear wave equations. The main features of these inequalities are that (a) they apply to a fully general class of time‐dependent domains, with timelike moving boundaries, (b) they apply to linear ...
Arick Shao
wiley   +1 more source

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