Results 181 to 190 of about 1,789,428 (238)

Advancing stochastic 3-SAT solvers by dissipating oversatisfied constraints. [PDF]

Proc Natl Acad Sci U S A
Schwardt J, Budich JC.
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Evolutionary bi-level neural architecture search with training: A framework for color classification. [PDF]

Sci Rep
Gómez-Ortega MÁ, Villarreal-Cervantes MG, Aldape-Pérez M, Rojas-López AG, Molina-Pérez D, Silva-Ortigoza R.   +5 more
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Irrational dynamics, superpitchfork bifurcation, and equilibrium hierarchy in a mass-spring system exhibiting chaos and bursting. [PDF]

Sci Rep
Abobda LT.
europepmc   +1 more source

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Upper and Lower Critical Solution Temperatures in Polystyrene Solutions. II

Macromolecules, 1973
Abstract Upper and lower critical solution temperatures have been determined for solutions of polyethylene in n-butyl acetate and n-amyl acetate over the molecular weight range of M η = 1·36 × 10 4 to 17·5 × 10 4 . Polyethylene solution in n-butyl acetate displays a smaller miscibility region than that of the polyethylene/n-amyl acetate system,
N. Kuwahara, S. Saeki, T. Chiba, M. Kaneko   +3 more
openaire   +1 more source

Remarks on variational methods and lower-upper solutions

NoDEA : Nonlinear Differential Equations and Applications, 1999
The authors consider the following class of equations \[ \begin{cases} -\Delta u(x)= f\bigl(x,u(x) \bigr),\quad x\in\Omega,\\ u=0\text{ on }\partial \Omega,\end{cases} \tag{1} \] where \(\Omega\subset\mathbb{R}^N\) is a bounded smooth domain. Letting \(F(x,t)=\int^t_0 f(x,s)ds\), the energy functional associated to (1) is defined by the formula \[ J(u)=
CONTI, MONICA, MERIZZI L, TERRACINI S.
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Second Order Problems and Lower and Upper Solutions

2021
This chapter is devoted to the study of second-order boundary value problems and second-order problems on unbounded domains. First, we prove existence of Caratheodory solutions between a pair of well-ordered lower and upper solutions and, moreover, we give additional conditions in order to guarantee the existence of extremal solutions.
Rubén Figueroa Sestelo, Rodrigo López Pouso, Jorge Rodríguez López   +2 more
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