Results 21 to 30 of about 80,061 (162)

Membrane flutter induced by radiation of surface gravity waves on a uniform flow [PDF]

open access: yes, 2020
We consider stability of an elastic membrane being on the bottom of a uniform horizontal flow of an inviscid and incompressible fluid of finite depth with free surface.
Kirillov, Oleg, Labarbe, Joris
core   +3 more sources

A Multiparameter, Numerical Stability Analysis of a Standing Cantilever Conveying Fluid [PDF]

open access: yes, 2002
In this paper, we numerically examine the stability of a standing cantilever conveying fluid in a multiparameter space. Based on nonlinear beam theory, our mathematical model turns out to be replete with exciting behavior, some of which was totally ...
Bou-Rabee, Nawaf M.   +2 more
core   +1 more source

A Priori Bounds And Existence Of Positive Solutions For Semilinear Elliptic Systems [PDF]

open access: yes, 2017
We provide a-priori L∞ bounds for classical positive solutions of semilinear elliptic systems in bounded convex domains when the nonlinearities are below the power functions v^p and u^q for any (p,q) lying on the critical Sobolev hyperbola.
Mavinga, Nsoki, Pardo, R.
core   +2 more sources

Complementing maps, continuation and global bifurcation [PDF]

open access: yes, 1983
We state, and indicate some of the consequences of, a theorem whose sole assumption is the nonvanishing of the Leray- Schauder degree of a compact vector field, and whose conclusions yield multidimensional existence, continuation and bifurcation ...
Fitzpatrick, P.   +2 more
core   +1 more source

Waves in Honeycomb Structures [PDF]

open access: yes, 2012
We review recent work of the authors on the non-relativistic Schr\"odinger equation with a honeycomb lattice potential, $V$. In particular, we summarize results on (i) the existence of Dirac points, conical singularities in dispersion surfaces of $H_V ...
Fefferman, Charles L.   +1 more
core   +2 more sources

Nonlinear theory for coalescing characteristics in multiphase Whitham modulation theory [PDF]

open access: yes, 2020
The multiphase Whitham modulation equations with $N$ phases have $2N$ characteristics which may be of hyperbolic or elliptic type. In this paper a nonlinear theory is developed for coalescence, where two characteristics change from hyperbolic to elliptic
Bridges, Thomas J., Ratliff, Daniel J.
core   +2 more sources

Multiparameter spectral analysis for aeroelastic instability problems

open access: yes, 2017
This paper presents a novel application of multiparameter spectral theory to the study of structural stability, with particular emphasis on aeroelastic flutter.
Gutschmidt, Stefanie, Pons, Arion
core   +1 more source

Extracting falsifiable predictions from sloppy models

open access: yes, 2007
Successful predictions are among the most compelling validations of any model. Extracting falsifiable predictions from nonlinear multiparameter models is complicated by the fact that such models are commonly sloppy, possessing sensitivities to different ...
Casey, Fergal P.   +4 more
core   +1 more source

Unfolding of eigenvalue surfaces near a diabolic point due to a complex perturbation [PDF]

open access: yes, 2004
The paper presents a new theory of unfolding of eigenvalue surfaces of real symmetric and Hermitian matrices due to an arbitrary complex perturbation near a diabolic point.
A A Mailybaev   +15 more
core   +2 more sources

Coarse Stability and Bifurcation Analysis Using Stochastic Simulators: Kinetic Monte Carlo Examples

open access: yes, 2001
We implement a computer-assisted approach that, under appropriate conditions, allows the bifurcation analysis of the coarse dynamic behavior of microscopic simulators without requiring the explicit derivation of closed macroscopic equations for this ...
Kevrekidis, Ioannis G.   +2 more
core   +1 more source

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