Results 51 to 60 of about 333 (139)

Spectral analysis of semigroups and growth-fragmentation equations [PDF]

open access: yes, 2016
The aim of this paper is twofold: (1) On the one hand, the paper revisits the spectral analysis of semigroups in a general Banach space setting. It presents some new and more general versions, and provides comprehensible proofs, of classical results such
Mischler, Stéphane   +3 more
core   +3 more sources

NEUTROSOPHIC RINGS [PDF]

open access: yes, 2006
In this book we define the new notion of neutrosophic rings. The motivation for this study is two-fold. Firstly, the classes of neutrosophic rings defined in this book are generalization of the two well-known classes of rings: group rings and semigroup ...
Vasantha, Kandasamy   +2 more
core   +1 more source

Neighborhood Complexes and Generating Functions for Affine Semigroups [PDF]

open access: yes
Given a_{1}; a_{2},...a_{n} in Z^{d}, we examine the set, G, of all nonnegative integer combinations of these ai. In particular, we examine the generating function f(z) = Sum_{b in G}z^{b}.
Herbert E. Scarf, Kevin M. Woods
core  

Characterization of some types of ordered semigroups in terms of fuzzy sets [PDF]

open access: yes, 2008
It is well known that the right (left) regular, regular, and intra-regular ordered semigroups play an essential role in studying the structure, especially the decomposition, of ordered semigroups.
Tsingelis, M., Kehayopulu, N.
core  

Sandwich semigroups in locally small categories I : foundations [PDF]

open access: yes, 2018
Fix (not necessarily distinct) objects i and j of a locally small category S, and write Sij for the set of all morphisms i→ j. Fix a morphism a ∈ Sji, and define an operation ⋆ a on Sij by x⋆a y= xay for all x, y ∈ Sij.
Durdev, Ivana   +6 more
core   +1 more source

Homotopy Path Spaces for Families of Admissible Paths [PDF]

open access: yes, 2017
Motivated by the search for universal orbits in geometric control theory and universal topological semigroups over local semigroups in topological groups, particularly Lie groups, we introduce a very general axiomatic notion of “trajectory,” namely a ...
Lawson, Jimmie, Kizil, Eyüp
core   +1 more source

Affine Realizations for Levy Driven Interest Rate Models with Real-World Forward Rate Dynamics [PDF]

open access: yes
We investigate the existence of affine realizations for interest rate term structure models driven by Levy processes. Using as numeraire the growth optimal portfolio, we model the interest rate term structure under the real-world probability measure, and
Stefan Tappe, Eckhard Platen
core  

Topics in combinatorial semigroup theory [PDF]

open access: yes, 2012
In this thesis we discuss various topics from Combinatorial Semigroup Theory: automaton semigroups; finiteness conditions and their preservation under certain semigroup theoretic notions of index; Markov semigroups; word-hyperbolic semigroups; decision ...
Maltcev, Victor
core  

Dots and lines : geometric semigroup theory and finite presentability [PDF]

open access: yes, 2015
Geometric semigroup theory means different things to different people, but it is agreed that it involves associating a geometric structure to a semigroup and deducing properties of the semigroup based on that structure.
Awang, Jennifer S.
core  

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