Results 31 to 40 of about 69,419 (165)

DIOPHANTINE APPROXIMATION ON LINES WITH PRIME CONSTRAINTS [PDF]

The Quarterly Journal of Mathematics, 2014
We study the problem of Diophantine approximation on lines in R^2 with prime numerator and denominator.
Baier, Stephan, Ghosh, Anish
openaire   +2 more sources

An Approximation Solution to Refinery Crude Oil Scheduling Problem with Demand Uncertainty Using Joint Constrained Programming

The Scientific World Journal, 2014
This paper is devoted to develop an approximation method for scheduling refinery crude oil operations by taking into consideration the demand uncertainty.
Qianqian Duan, Genke Yang, Guanglin Xu, Changchun Pan   +3 more
doaj   +1 more source

Diophantine approximation with sign constraints [PDF]

Monatshefte für Mathematik, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Efficiency analysis of GREEDI algorithm under delta-matroid constraints for subset selection in distributed systems

Радіоелектронні і комп'ютерні системи
The subject matter of the article is the efficiency analysis of greedy optimization algorithms for subset selection in distributed systems under delta-matroid constraints.
Inessa Kulakovska
doaj   +1 more source

Solving the General Fuzzy Random Bilevel Programming Problem Through $Me$ Measure-Based Approach

IEEE Access, 2018
This paper addresses the general fuzzy random bilevel programming problem in which not only both objective functions, but also the constraints contain fuzzy random variable coefficients.
Aihong Ren
doaj   +1 more source

Linearized model for optimization of coupled electricity and natural gas systems

Journal of Modern Power Systems and Clean Energy, 2017
In this paper a combined optimization of a coupled electricity and gas system is presented. For the electricity network a unit commitment problem with optimization of energy and reserves under a power pool, considering all system operational and unit ...
Mathias SIRVENT, Nikolaos KANELAKIS, Björn GEIßLER, Pandelis BISKAS   +3 more
doaj   +1 more source

Multiscale Model Reduction with Local Online Correction for Polymer Flooding Process in Heterogeneous Porous Media

Mathematics, 2023
In this work, we consider a polymer flooding process in heterogeneous media. A system of equations for pressure, water saturation, and polymer concentration describes a mathematical model.
Maria Vasilyeva, Denis Spiridonov
doaj   +1 more source

Approximating shortest superstrings with constraints

Theoretical Computer Science, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jiang, Tao, Li, Ming
openaire   +1 more source

METHOD OF FIRST-ORDER APPROXIMATIONS OF INTER FORCE FOR STRUCTURAL TOPOLOGY OPTIMIZATION WITH STRESS CONSTRAINTS

Jixie qiangdu, 2016
To solve the large computation and low efficiency of stress approximation in structural topology optimization with stress constraints,a method of the first-order approximation of internal force is put forward to express explicitly stress constraints.And ...
PENG XiRong, SUI YunKang
doaj  

Formulations and Approximations of Branch Flow Model for General Power Networks

Journal of Modern Power Systems and Clean Energy, 2022
The formulations and approximations of the branch flow model for general (radial and mesh) power networks (General-BranchFlow) are given in this paper.
Zhao Yuan
doaj   +1 more source