Results 21 to 30 of about 343 (169)
Pair algebras and Galois connections [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +4 more sources
The Order of Hypersubstitutions of Type (2,1)
Hypersubstitutions are mappings which map operation symbols to terms of the corresponding arities. They were introduced as a way of making precise the concept of a hyperidentity and generalizations to 𝑀-hyperidentities.
Tawhat Changphas, Wonlop Hemvong
doaj +1 more source
The minimal closed monoids for the Galois connection ${\rm End}$-${\rm Con}$ [PDF]
The minimal nontrivial endomorphism monoids $M={\rm End}{\rm Con} (A,F)$ of congruence lattices of algebras $(A,F)$ defined on a finite set $A$ are described.
Danica Jakubíková-Studenovská +2 more
doaj +1 more source
Involutions on Relational Program Calculi [PDF]
The standard Galois connection between the relational and predicate-transformer models of sequential programming (defined in terms of weakest precondition) confers a certain similarity between them.
I.M. Rewitzky, J.W. Sanders
doaj
Rough sets based on Galois connections
Rough set theory is an important tool to extract knowledge from relational databases. The original definitions of approximation operators are based on an indiscernibility relation, which is an equivalence one.
Madrid Nicolás +2 more
doaj +1 more source
On Constructivity of Galois Connections [PDF]
Abstract interpretation-based static analyses rely on abstract domains of program properties, such as intervals or congruences for integer variables. Galois connections (GCs) between posets provide the most widespread and useful formal tool for mathematically specifying abstract domains.
openaire +1 more source
ESSENTIAL AND RETRACTABLE GALOIS CONNECTIONS [PDF]
For bounded lattices, we introduce certain Galois connections, called (cyclically) essential, retractable and UC Galois connections, which behave well with respect to concepts of module-theoretic nature involving essentiality. We show that essential retractable Galois connections preserve uniform dimension, whereas essential retractable UC Galois ...
openaire +2 more sources
Connections on trivial vector bundles over projective schemes
Over a smooth and proper complex scheme, the differential Galois group of an integrable connection may be obtained as the closure of the transcendental monodromy representation.
Biswas, Indranil +2 more
doaj +1 more source
An Innovative Approach to Multi‐Valued Logic
The current generation of computer systems operates on the principles of binary logic, which encompasses both logical and arithmetic operations. However, silicon technology has reached its peak performance, prompting researchers to explore alternative methods for enhancing computational efficiency. One such method is the adoption of Multi‐Valued Logic (
Ali Mokhtari, Peyman Kabiri
wiley +1 more source
The Singular Value Decomposition over Completed Idempotent Semifields
In this paper, we provide a basic technique for Lattice Computing: an analogue of the Singular Value Decomposition for rectangular matrices over complete idempotent semifields (i-SVD).
Francisco J. Valverde-Albacete +1 more
doaj +1 more source

