Results 61 to 70 of about 331 (138)

Regular ordered semigroups in terms of fuzzy subsets

open access: yes, 2006
Given a set S, a fuzzy subset of S (or a fuzzy set in S) is, by definition, an arbitrary mapping f : S → [0, 1] where [0, 1] is the usual interval of real numbers. If the set S bears some structure, one may distinguish some fuzzy subsets of S in terms of
Tsingelis, M., Kehayopulu, N.
core  

A spectrum of compromise aggregation operators for multi-attribute decision making.

open access: yes, 2006
In many decision making problems, a number of independent attributes or criteria are often used to individually rate an alternative from an agent’s local perspective and then these individual ratings are combined to produce an overall assessment. Now, in
Luo, X.   +8 more
core   +1 more source

Generation problems for finite groups

open access: yes, 2012
It can be deduced from the Burnside Basis Theorem that if G is a finite p-group with d(G)=r then given any generating set A for G there exists a subset of A of size r that generates G. We have denoted this property B.
McDougall-Bagnall, Jonathan M.
core  

A groupoid approach to regular *-semigroups

open access: yes
In this paper we develop a new groupoid-based structure theory for the class of regular ⁎-semigroups. This class occupies something of a ‘sweet spot’ between the important classes of inverse and regular semigroups, and contains many natural examples ...
Muhammed, P. A. Azeef   +1 more
core   +1 more source

Riccati theory and singular estimates for a Bolza control problem arising in linearized fluid–structure interaction

open access: yes, 2009
We consider a Bolza boundary control problem involving a fluid-structure interaction model. The aim of this paper is to develop an optimal feedback control synthesis based on Riccati theory.
Tuffaha, Amjad   +3 more
core   +1 more source

Multiquantum systems and point processes I. Generating functionals and nonlinear semigroups [PDF]

open access: yes, 1988
An algebraic approach to representation theory and the description of multicomponent quantum systems is considered. A generating multiquantum state functional and nonlinear completely positive map are introduced and a dilation theorem giving a nonlinear ...
Belavkin, V. P.
core  

Structure theorems for ordered groupoids [PDF]

open access: yes, 2009
The Ehresmann-Schein-Nambooripad theorem, which states that the category of inverse semigroups is isomorphic to the category of inductive groupoids, suggests a route for the generalisation of ideas from inverse semigroup theory to the more general ...
Miller, Elizabeth Caroline   +1 more
core   +1 more source

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