Results 51 to 60 of about 1,136,955 (184)

Many-Valued Logic and Zadeh’s Fuzzy Sets: A Stone Representation Theorem for Interval-Valued Łukasiewicz–Moisil Algebras

Journal of Intelligent Systems, 2016
The aim of this article is to develop a representation theory of interval-valued Łukasiewicz–Moisil algebras; the concept of interval fuzzy sets involves the role that the notion of field of sets plays for the representation of Boolean algebras.
Amroune Abdelaziz, Zedam Lemnaouar, Davvaz Bijan   +2 more
doaj   +1 more source

An efficient Bayesian phylogenetic approach for joint inference of continuous and discrete trait evolution under a state‐dependent Ornstein–Uhlenbeck model

Methods in Ecology and Evolution, EarlyView.
Abstract Macroevolutionary adaptation of a continuous trait to different discrete states across species can be modelled using a phylogenetic state‐dependent Ornstein–Uhlenbeck (OU) process. Existing inference methods face two challenges. First, although efficient likelihood algorithms for continuous trait evolution models exist, none have been ...
Priscilla Lau, Bjørn T. Kopperud, John T. Clarke, Dirk Metzler, Sebastian Höhna   +4 more
wiley   +1 more source

Why did Putin invade Ukraine? A theory of degenerate autocracy

American Journal of Political Science, EarlyView.
Abstract Many dictatorships end up with a series of disastrous decisions such as Hitler's attack on the Soviet Union or Saddam Hussein's aggression against Kuwait. Even if a certain policy choice is not ultimately fatal for the regime, such as Mao's Big Leap Forward or the Pol Pot's collectivization drive, they typically involve both a miscalculation ...
Georgy Egorov, Konstantin Sonin
wiley   +1 more source

Banach–Stone theorems and Riesz algebras

Journal of Mathematical Analysis and Applications, 2006
Let \(X, Y\) be compact Hausdorff spaces and let \(E, F\) be both Banach lattices and Riesz algebras. In this paper, the following main result shall be proved: If \(F\) has no zero-divisor and there exists a Riesz algebraic isomorphism \(\Phi:C(X,E)\to C(Y,F)\) such that \(\Phi(f)\) has no zero if \(f\) has none, then \(X\) is homeomorphic to \(Y\) and
Miao, Xinhe, Cao, Jiling, Xiong, Hongyun
openaire   +1 more source

Modelling Patterns of Past Inundation Processes Combining Geoarchaeology and Morphometric Hydrological Analysis in the Shashe‐Limpopo Basin, South Africa

Archaeometry, EarlyView.
ABSTRACT Riverine and valley systems across the globe have been central to the development of past urban centres. By AD 900, the Shashe and Limpopo Rivers seem to have facilitated the interaction and integration of early farming communities in southern Africa. This paper focuses on the application of geoarchaeological perspectives made available by the
B. S. Nxumalo
wiley   +1 more source

A new categorical equivalence for stone algebras

Mathematica Slovaca
Abstract The aim of this paper is to give a categorical equivalence for Stone algebras. We introduce the variety of Stone-Kleene algebras with intuitionistic negation, or Stone KAN-algebras for short, and explore Kalman’s construction for Stone algebras.
Calomino, Ismael, Pelaitay, Gustavo Andrés   +1 more
openaire   +3 more sources

Class Angular Distortion Index for Dimensionality Reduction

Computer Graphics Forum, EarlyView.
Abstract Dimensionality reduction (DR) techniques are often characterized by whether they preserve global, high‐level structures in the data or local, neighborhood structures. This distinction matters in visualization: global methods can obscure clusters while local methods can over‐emphasize them.
Kaviru Gunaratne, Stephen Kobourov, Jacob Miller   +2 more
wiley   +1 more source

Compactifications of bundles of C*-algebras

Applied General Topology
This article presents the construction of a bundle of C*-algebras with a compact base space by means of localization processes resorting to inductive limits.
Clara Marina Neira-Uribe, Januario Varela   +1 more
doaj   +1 more source

Totally disconnected compactifications

International Journal of Mathematics and Mathematical Sciences, 1993
There is a one-to-one order preserving correspondence between totally disconnected compactifications of a topological space and certain Boolean algebras of open closed subsets on it.
Parfeny P. Saworotnow
doaj   +1 more source

Effective When Distinctive: The Role of Phonetic Similarity in Nested Dependency Learning Across Preschool Years

Language Learning, EarlyView.
Abstract Parallel tracking of distant relations between speech elements, so‐called nonadjacent dependencies (NADs), is crucial in language development but computationally demanding and acquired only in late preschool years. As processing of single NADs is facilitated when dependent elements are perceptually similar, we investigated how phonetic ...
Dimitra‐Maria Kandia, Angela D. Friederici, Jutta L. Mueller, Claudia Männel   +3 more
wiley   +1 more source