Results 11 to 20 of about 350,084 (285)

On the validity of Friedrichs' inequalities.

open access: yesMATHEMATICA SCANDINAVICA, 1984
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Krizek, Michal, Neittaanmäki, Pekka
openaire   +3 more sources

Measuring subjective inequality: Development and validation of the Perceived Economic Inequality Scale (PEIS)

open access: yesThe Spanish Journal of Psychology, 2023
The main goal of the present research is to describe the development and validation of the Perceived Economic Inequality Scale (PEIS), an instrument measuring individuals' perception of economic inequality at the national level. The study was conducted on a representative sample of the Italian population (N = 1446, 51% women).
Valtorta, RR   +4 more
openaire   +2 more sources

The Validity of Shapiro's Cyclic Inequality [PDF]

open access: yesMathematics of Computation, 1989
A cyclic sum S N ( x ) = ∑ x i / ( x i +
openaire   +2 more sources

Valid inequalities based on simple mixed-integer sets [PDF]

open access: yesMathematical Programming, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dash, Sanjeeb, Günlük, Oktay
openaire   +2 more sources

Accelerated Benders’ Decomposition for Integrated Forward/Reverse Logistics Network Design under Uncertainty

open access: yesLogistics, 2017
In this paper, a two-stage stochastic programming modelling is proposed, to design a multi-period, multistage, and single-commodity integrated forward/reverse logistics network design problem under uncertainty.
Vahab Vahdat, Mohammad Ali Vahdatzad
doaj   +1 more source

A polyhedral approach for the Equitable Coloring Problem [PDF]

open access: yes, 2011
In this work we study the polytope associated with a 0,1-integer programming formulation for the Equitable Coloring Problem. We find several families of valid inequalities and derive sufficient conditions in order to be facet-defining inequalities.
Bahiense   +15 more
core   +2 more sources

Some Nonlinear Integral Inequalities Connected with Retarded Terms on Time Scales

open access: yesJournal of Function Spaces, 2020
The objective of this research is to formulate a specific class of integral inequalities of Gronwall kind concerning retarded term and nonlinear integrals with time scales theory.
Zareen A. Khan   +4 more
doaj   +1 more source

Robust network design: Formulations, valid inequalities, and computations [PDF]

open access: yesNetworks, 2013
AbstractTraffic in communication networks fluctuates heavily over time. Thus, to avoid capacity bottlenecks, operators highly overestimate the traffic volume during network planning. In this article we consider telecommunication network design under traffic uncertainty, adapting the robust optimization approach of Bertsimas and Sim [Oper Res 52 (2004),
Koster, Arie M. C. A.   +2 more
openaire   +2 more sources

A metaheuristic method for the multireturn-to-depot petrol truck routing problem with time windows

open access: yesPetroleum Science, 2019
The petrol truck routing problem is an important part of the petrol supply chain. This study focuses on determining routes for distributing petrol products from a depot to petrol stations with the objective of minimizing the total travel cost and the ...
Bohong Wang   +4 more
doaj   +1 more source

Valid inequalities for mixed integer linear programs [PDF]

open access: yesMathematical Programming, 2007
This tutorial presents a theory of valid inequalities for mixed integer linear sets. It introduces the necessary tools from polyhedral theory and gives a geometric understanding of several classical families of valid inequalities such as lift-and-project cuts, Gomory mixed integer cuts, mixed integer rounding cuts, split cuts and intersection cuts, and
openaire   +2 more sources

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