Results 11 to 20 of about 7,145,149 (347)

Critical point theorems [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
Let H be a Hilbert space such that H=V⊕W, where V and W are two closed subspaces of H. We generalize an abstract theorem due to Lazer et al. (1975) and a theorem given by Moussaoui (1990-1991) to the case where V and W are not necessarily finite ...
H. Boukhrisse, M. Moussaoui
doaj   +3 more sources

Bootstraping the QCD Critical Point [PDF]

open access: yesPhysics Letters B, 2003
It is shown that hadronic matter formed at high temperatures, according to the prescription of the statistical bootstrap principle, develops a critical point at nonzero baryon chemical potential.
A.S. Kapoyannis   +28 more
core   +4 more sources

CRASHES AS CRITICAL POINTS [PDF]

open access: yesInternational Journal of Theoretical and Applied Finance, 2000
We study a rational expectation model of bubbles and crashes. The model has two components: (1) our key assumption is that a crash may be caused by local self-reinforcing imitation between noise traders. If the tendency for noise traders to imitate their nearest neighbors increases up to a certain point called the "critical" point, all noise traders ...
Anders Johansen   +3 more
openaire   +5 more sources

On the critical points of a polynomial [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1998
Let p be a complex polynomial, of the form , where |zk| ≥ 1 when 1 ≤ k ≤ n − 1. Then p′(z) ≠ 0 if |z| /n.Let B(z, r) denote the open ball in with centre z and radius r, and denote its closure. The Gauss-Lucas theorem states that every critical point of a complex polynomial p of degree at least 2 lies in the convex hull of its zeros.
Abdul Aziz, B. A. Zargar
openaire   +2 more sources

Relative Critical Points [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
Relative equilibria of Lagrangian and Hamiltonian systems with symmetry are critical points of appropriate scalar functions parametrized by the Lie algebra (or its dual) of the symmetry group. Setting aside the structures - symplectic, Poisson, or variational - generating dynamical systems from such functions highlights the common features of their ...
openaire   +5 more sources

Remarks on some fourth-order boundary value problems with non-monotone increasing eigenvalue sequences

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
By $Z_{2}$-index theory, the existence and multiplicity of solutions for some fourth-order boundary value problems $$ \begin{cases} u^{(4)}+au''=\mu u+F_{u}(t,u ...
Chengyue Li, Yuhan Wu
doaj   +1 more source

Topology Rule-Based Methodology for Flow Separation Analysis in Turbomachinery

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2022
Boundary-layer flow separation is a common flow feature in many engineering applications. The consequences of flow separation in turbomachinery can be disastrous in terms of performance, stability and noise.
Pierre Duquesne   +3 more
doaj   +1 more source

Isolated critical point from Lovelock gravity [PDF]

open access: yes, 2014
For any K(=2k+1)th-order Lovelock gravity with fine-tuned Lovelock couplings, we demonstrate the existence of a special isolated critical point characterized by non-standard critical exponents in the phase diagram of hyperbolic vacuum black holes. In the
Dolan, Brian P.   +3 more
core   +2 more sources

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