Results 31 to 40 of about 1,929,870 (338)

A survey on difference hierarchies of regular languages [PDF]

open access: yesLogical Methods in Computer Science, 2018
Difference hierarchies were originally introduced by Hausdorff and they play an important role in descriptive set theory. In this survey paper, we study difference hierarchies of regular languages.
Olivier Carton   +2 more
doaj   +1 more source

Martin's conjecture, arithmetic equivalence, and countable Borel equivalence relations [PDF]

open access: yes, 2011
There is a fascinating interplay and overlap between recursion theory and descriptive set theory. A particularly beautiful source of such interaction has been Martin's conjecture on Turing invariant functions.
Marks, Andrew   +2 more
core   +4 more sources

The Status of Normative Propositions in the Theory of Scientific Change

open access: yesScientonomy, 2016
The scope of the Theory of Scientific Change (TSC) encompasses any and all changes that occur in a given scientific mosaic, the set of all methods employed and theories accepted at a given time by a given scientific community.
Zoe Sebastien
doaj   +1 more source

A novel approach towards Heronian mean operators in multiple attribute decision making under the environment of bipolar complex fuzzy information

open access: yesAIMS Mathematics, 2023
One of the most effective and impressive approaches to tackle uncertainty is the theory of bipolar complex fuzzy set (BCFS). The theory of BCFS modified the theory of fuzzy set (FS), bipolar FS (BFS), and complex FS.
Tahir Mahmood   +2 more
doaj   +1 more source

An Application for Descriptive Nearness: Iris Recognition

open access: yesTopological Algebra and its Applications, 2017
Near Set Theory has various applications in the literature. In this paper, using the concept descriptive nearness, we show how to perform iris recognition. This process has a few algorithms given via Mathematica Script Language.
Polat Kadirhan
doaj   +1 more source

Social representation of spiritual surgeries in Umbanda: culture, religion and contributions of nursing theory [PDF]

open access: yesRevista Brasileira de Enfermagem, 2023
Objective: to analyze the social representation of spiritual surgeries in Umbanda for Bantu-Amerindian ritual mediums and their contributions to the cross-cultural care proposed by Madeleine Leininger.
Juliana de Lima Brandão   +7 more
doaj   +1 more source

The Ramsey property implies no mad families [PDF]

open access: yes, 2019
We show that if all collections of infinite subsets of $\N$ have the Ramsey property, then there are no infinite maximal almost disjoint (mad) families. This solves a long-standing problem going back to Mathias \cite{mathias}.
Schrittesser, David, Törnquist, Asger
core   +2 more sources

The descriptive set theory of C$^*$-algebra invariants [PDF]

open access: yes, 2011
We establish the Borel computability of various C$^*$-algebra invariants, including the Elliott invariant and the Cuntz semigroup. As applications we deduce that AF algebras are classifiable by countable structures, and that a conjecture of Winter and ...
I. Farah   +2 more
semanticscholar   +1 more source

Creating the advertising idea from the view of social learning theory [PDF]

open access: yesJournal of Architecture, Art & Humanistic Science, 2023
:The research deals with the study of building the advertising idea in light of the concepts of social learning theory so that it can be applied in advertising design.
Rasha Zahran   +2 more
doaj   +1 more source

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