Results 21 to 30 of about 164,723 (287)

Optimal control of an abstract evolution variational inequality with application to homogenized plasticity [PDF]

open access: yesJournal of Nonsmooth Analysis and Optimization, 2020
The paper is concerned with an optimal control problem governed by a state equation in form of a generalized abstract operator differential equation involving a maximal monotone operator.
Hannes Meinlschmidt   +2 more
doaj   +1 more source

Necessary and sufficient condition on global optimality without convexity and second order differentiability [PDF]

open access: yes, 2012
The main goal of this paper is to give a necessary and sufficient condition of global optimality for unconstrained optimization problems, when the objective function is not necessarily convex. We use Gâteaux differentiability of the objective function
A. Brøndsted   +9 more
core   +1 more source

Optimal Distributed Interference Mitigation for Small Cell Networks With Non-Orthogonal Multiple Access: A Locally Cooperative Game

open access: yesIEEE Access, 2018
In this paper, we study the potential of non-orthogonal multiple access (NOMA) for the purpose of interference mitigation in downlink small cell networks (SCNs).
Xianling Wang   +4 more
doaj   +1 more source

On the performance of a cavity method based algorithm for the Prize-Collecting Steiner Tree Problem on graphs [PDF]

open access: yes, 2012
We study the behavior of an algorithm derived from the cavity method for the Prize-Collecting Steiner Tree (PCST) problem on graphs. The algorithm is based on the zero temperature limit of the cavity equations and as such is formally simple (a fixed ...
Biazzo, Indaco   +2 more
core   +2 more sources

Phenology as a strategy for carbon optimality: a global model [PDF]

open access: yesBiogeosciences, 2014
Phenology is essential to our understanding of biogeochemical cycles and the climate system. We develop a global mechanistic model of leaf phenology based on the hypothesis that phenology is a strategy for optimal carbon gain at the canopy level so that ...
S. Caldararu, D. W. Purves, P. I. Palmer
doaj   +1 more source

Diffusions for Global Optimization

open access: yesSIAM Journal on Control and Optimization, 1986
This paper describes a problem of finding a global minimum of a real- valued function defined on the unit hypercube in Euclidean n-space. The problem is changed to a stochastic differential equation by using the gradient of the above function as the drift term and a diffusion term which is interpreted as a constant times the square root of ...
Geman, Stuart, Hwang, Chii-Ruey
openaire   +2 more sources

Generalized invexity and mathematical programs [PDF]

open access: yesYugoslav Journal of Operations Research, 2021
In this paper, using generalized convexity assumptions, we show that Mstationary condition is sufficient for global or local optimality under some mathematical programming problem with equilibrium constraints(MPEC).
Joshi Bhuwan Chandra   +2 more
doaj   +1 more source

Second-order optimality conditions for interval-valued functions

open access: yesJournal of Inequalities and Applications, 2023
This work is included in the search of optimality conditions for solutions to the scalar interval optimization problem, both constrained and unconstrained, by means of second-order optimality conditions.
Gabriel Ruiz-Garzón   +3 more
doaj   +1 more source

Optimality-based modelling of climate impacts on global potential wheat yield

open access: yesEnvironmental Research Letters, 2021
Evaluation of potential crop yields is important for global food security assessment because it represents the biophysical ‘ceiling’ determined by variety, climate and ambient CO _2 .
Shengchao Qiao   +3 more
doaj   +1 more source

A compactness measure of sustainable building forms [PDF]

open access: yesRoyal Society Open Science, 2019
Global population growth and urbanization necessitate countless more buildings in this century, causing an unprecedented increase in energy consumption, greenhouse gas emissions, waste generation and resource use.
Bernardino D’Amico   +1 more
doaj   +1 more source

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