Results 11 to 20 of about 3,726,336 (290)

Deformation techniques in metric critical point theory

open access: yesAdvances in Nonlinear Analysis, 2013
We propose a synthetic and self-contained treatment of the main deformation results of critical point theory, for continuous functionals defined on metric spaces.
Corvellec Jean-Noël
doaj   +1 more source

The Use of Cerami Sequences in Critical Point Theory

open access: yesAbstract and Applied Analysis, 2007
The concept of linking was developed to produce Palais-Smale (PS) sequences G(uk)→a, G'(uk)→0 for C1functionals G that separate linking sets. These sequences produce critical points if they have convergent subsequences (i.e., if G satisfies the PS ...
Martin Schechter
doaj   +1 more source

Multiple solutions for systems of multi-point boundary value problems [PDF]

open access: yesOpuscula Mathematica, 2013
In this paper, we establish the existence of at least three solutions of the multi-point boundary value system \[\left\{\begin{array}{ll} -(\phi_{p_i}(u'_{i}))'=\lambda F_{u_{i}}(x,u_{1},\ldots,u_{n}),\ t\in(0,1),\\ u_{i}(0)=\sum_{j=1}^m a_ju_i(x_j ...
John R. Graef   +2 more
doaj   +1 more source

Critical point theory for sparse recovery [PDF]

open access: yesOptimization, 2021
22 pages.
S. Lämmel, V. Shikhman
openaire   +2 more sources

Metamagnetic Quantum Criticality in Sr3Ru2O7 [PDF]

open access: yes, 2002
We consider the metamagnetic transition in the bilayer ruthenate, ${\rm Sr_3Ru_2O_7}$, and use this to motivate a renormalization group treatment of a zero-temperature quantum-critical end-point.
A. J. Millis   +33 more
core   +1 more source

A test of bosonization at the level of four-point functions in Chern-Simons vector models [PDF]

open access: yes, 2015
We study four-point functions in Chern-Simons vector models in the large $N$ limit. We compute the four-point function of the scalar primary to all orders in the `t Hooft coupling $\lambda=N/k$ in $U(N)_k$ Chern-Simons theory coupled to a fundamental ...
Bedhotiya, Akshay, Prakash, Shiroman
core   +2 more sources

Landau theory of compressible magnets near a quantum critical point

open access: yes, 2009
Landau theory is used to investigate the behaviour of a metallic magnet driven towards a quantum critical point by the application of pressure. The observed dependence of the transition temperature with pressure is used to show that the coupling of the ...
Ahmed, Mahrous R., Gehring, Gillian A
core   +1 more source

Noether-Wald energy in Critical Gravity [PDF]

open access: yes, 2018
Criticality represents a specific point in the parameter space of a higher-derivative gravity theory, where the linearized field equations become degenerate.
Anastasiou, Giorgos   +2 more
core   +2 more sources

Morse-Novikov critical point theory, Cohn localization and Dirichlet units

open access: yes, 1999
In this paper we construct a Universal chain complex, counting zeros of closed 1-forms on a manifold. The Universal complex is a refinement of the well known Novikov complex; it relates the homotopy type of the manifold, after a suitable noncommutative ...
Farber, M.
core   +1 more source

Critical points in coupled Potts models and critical phases in coupled loop models [PDF]

open access: yes, 2008
We show how to couple two critical Q-state Potts models to yield a new self-dual critical point. We also present strong evidence of a dense critical phase near this critical point when the Potts models are defined in their completely packed loop ...
Baxter R J   +17 more
core   +3 more sources

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