Results 21 to 30 of about 248 (152)

The Ore conjecture

open access: yesJournal of the European Mathematical Society, 2010
The Ore conjecture, posed in 1951, states that every element of every finite non-abelian simple group is a commutator. Despite considerable effort, it remained open for various infinite families of simple groups. In this paper we develop new strategies, combining character-theoretic methods with other ingredients, and use them to establish the ...
Martin W. Liebeck   +3 more
openaire   +2 more sources

A general model of parameterized OWA aggregation with given orness level [PDF]

open access: yes, 2008
The paper proposes a general optimization model with separable strictly convex objective function to obtain the consistent OWA (ordered weighted averaging) operator family.
Liu, Xinwang
core   +1 more source

Monotone Fuzzy Rule Interpolation for TSK-FIS-Like n-Ary Aggregation Functions [PDF]

open access: yes, 2023
Fuzzy Rule Interpolation (FRI) is important for fuzzy inference systems modeling pertaining to a sparse fuzzy rule base system. The focus of this paper is on a specific class of FRI, i.e., monotone FRI (MFRI), for modeling monotone Takagi-Sugeno-Kang ...
Kerk, Yi Wen   +3 more
core   +2 more sources

Investigating the stability of the yield strength of the friction stir welding joint of similar amorphous thermoplastic based on the Ordered Weighted Averaging operators [PDF]

open access: yesمهندسی مکانیک شریف
This paper presents an investigation of the yield strength of welded ABS thermoplastics. Welding is carried out using a steel tool mounted on a milling machine. The pin of the tools consists of cylindrical and conical profiles. Due to frictional heat and
N. Sadeghian, A.R. Chaji
doaj   +1 more source

“The Ores of Leadville” [PDF]

open access: yesNature, 1884
MY attention has lately been drawn to a review in NATURE for April 17 of a work on “The Ores of Leadville and their Mode of Occurrence,” by Mr. L. D. Ricketts, from which one would be led to suppose that all the facts mentioned were due to original investigation on the part of the author.
openaire   +2 more sources

Desingularization of Ore operators

open access: yesJournal of Symbolic Computation, 2016
We show that Ore operators can be desingularized by calculating a least common left multiple with a random operator of appropriate order. Our result generalizes a classical result about apparent singularities of linear differential equations, and it gives rise to a surprisingly simple desingularization algorithm.
Shaoshi Chen   +2 more
openaire   +3 more sources

Orness and cardinality indices for averaging inclusion-exclusion integrals

open access: yes, 2017
The inclusion-exclusion integral is a generalization of the discrete Choquet integral, defined with respect to a fuzzy measure and an interaction operator that replaces the minimum function in the Choquet integral’s Möbius representation.
Simon James (13094904)   +2 more
core   +2 more sources

The orness value for rank-dependent welfare functions and rank-dependent poverty measures

open access: yes, 2017
We propose two distribution-sensitivity criteria to classify the rank-dependent welfare functions. These criteria compare the reaction of the welfare function to lossy transfers and lossy equalization transfers among individuals.
Mariateresa Ciommi   +3 more
core   +1 more source

THE RELATIONSHIPS BETWEEN TWO VARIABILITY AND ORNESS OPTIMIZATION PROBLEMS FOR OWA OPERATOR WITH RIM QUANTIFIER EXTENSIONS

open access: yes, 2010
The paper considers the analytical solution methods of the maximizing entropy or minimizing variance with fixed orness level problems and the maximizing orness with fixed entropy or variance value problems together.
XINWANG LIU
core   +1 more source

Oil pipeline route optimization using multi-criteria analysis in GIS [PDF]

open access: yesعلوم محیطی, 2017
Introduction: According to distribution requirements and the broad distance between production and consumption centres in Iran, linear infrastructure development plays an important role and should be considered as a vital necessity.
shahram Mohammadi   +4 more
doaj  

Home - About - Disclaimer - Privacy