Search results for " set"
showing 10 items of 2095 documents
Conditional measures and their applications to fuzzy sets
1991
Abstract Given a ⊥-decomposable measure with respect to a continuous t-conorm, as introduced by the author in an earlier paper (see Section 1), we can construct ⊥-conditional measures as implications. These fulfil a ‘generalized product law’ replacing the product in the classical law by any other strict t-norm ⊥ and turn out to be decomposable with respect to an operation ⊥ V depending on ⊥, ⊥ and the condition set V (Section 2). More general, conditional measures are introduced axiomatically and are shown to be ⊥-conditional measures with respect to some ⊥-decomposable measure (Section 3). ‘Bayesian-like’ models are given which are alternatives to that presented by the author in a recent p…
Formal Description of Rough Sets
1994
In the paper we present a formal description of rough sets within the limits of the generalized set theory, which is interpreted in the approximation of set theory. The rough sets are interpreted as an approximations, which are defined by means of the Pawlak’s rough sets.
Sur les feuilletages alg�briques de Rolle
1997
L'objet de ce travail est l'etude des feuilletages algebriques de Rolle dans \( \Bbb {R}^n \). On montre que leur restriction au complementaire d'un nombre fini de feuilles possede une structure de produit. On precise aussi la topologie de certaines de leurs feuilles.
Lawvere–Tierney sheaves in Algebraic Set Theory
2009
We present a solution to the problem of defining a counterpart in Algebraic Set Theory of the construction of internal sheaves in Topos Theory. Our approach is general in that we consider sheaves as determined by Lawvere-Tierney coverages, rather than by Grothendieck coverages, and assume only a weakening of the axioms for small maps originally introduced by Joyal and Moerdijk, thus subsuming the existing topos-theoretic results.
Sobre algunos endemismos ibéricos presentes en las áreas setabenses
1999
Se aportan nuevos datos sobre la distribución de seis endemismos ibéricos presentes en las áreas setabenses de las provincias de Alicante y Valencia. En todos los casos se trata de ampliaciones notables de sus áreas de distribución y, en el caso de Hippocrepis valentina y Centaurea segariensis, novedades para el catálogo provincial de Valencia. Para todas ellas, se aportan datos sobre su ecología, fitosociología y biogeografía. New data on distribution of six Spanish endemics growing in the Setabensian areas of Valencia and Alicante provinces (E of Spain), are reported. The distribution areas of most of them are considerably enlarged, and both Hippocrepis valentina and Centaurea segariensis…
Allo-repetition in Academic Settings. Cooperation, Understanding Co-construction and Knowledge Negotiation in the Medical Section of the ELFA Corpus
2015
In recent years, spoken academic ELF (English as a Lingua Franca) has been an object of in- creasing interest in linguistic and communication studies thanks to the position of academia as “one of the domains which have most eagerly adopted English as their common language in in- ternational communication” (Mauranen 2006a: 146) 1. In a context where different linguistic and cultural backgrounds come together, clarity and explicitness play a prominent role. In this respect, ELF research has paid much attention to the importance of communicative strategies, the most prominent of which is repetition. ELF studies on repetition have been carried out in several do- mains, including academia. Withi…
Gabor systems and almost periodic functions
2017
Abstract Inspired by results of Kim and Ron, given a Gabor frame in L 2 ( R ) , we determine a non-countable generalized frame for the non-separable space AP 2 ( R ) of the Besicovic almost periodic functions. Gabor type frames for suitable separable subspaces of AP 2 ( R ) are constructed. We show furthermore that Bessel-type estimates hold for the AP norm with respect to a countable Gabor system using suitable almost periodic norms of sequences.
Altari del Settecento a Catania. Storia, rilievo e rappresentazione di tre casi studio
2022
Il contributo affronta il tema degli altari a doppio ordine settecenteschi conservati a Catania nelle chiese di San Giuliano, San Placido e Santa Chiara. A partire dal rilievo strumentale, l'analisi grafica e tipologica dei manufatti viene integrata con le informazioni documentarie e bibliografiche note. La rappresentazione digitale degli altari consente di chiarire specifiche questioni relative a modelli e scelte progettuali.
Fuzziness, Philosophy, and Medicine
2013
In his Handbook of Analytic Philosophy of Medicine, a book that in our view is qualified to be the starting point of a new discourse in the fields of Theoretical Medicine and Philosophy of Medicine, Kazem Sadegh-Zadeh uses two scientific theories that are studied and regarded in many specific sectors of hard and human sciences but not globally well-known in Philosophy of Medicine: Fuzzy Set Theory and Structuralism. This opening contribution briefly discusses those approaches, and introduces the musing, ideas, counterpoints and contributions from many other authors, among them philosophers, logicians, mathematicians and researchers from different and competing disciplines, that constitute t…
High‐nuclearity mixed‐valence magnetic clusters : A general solution of the double exchange problem
1996
We report here a general solution of the double‐exchange problem in the high‐nuclearity mixed valence systems containing arbitrary number P of the electrons delocalized over the network of N (P<N) localized spins. The developed approach is based on the successive (chainlike) spin‐coupling scheme and takes full advantage from the quantum angular momentum theory. In the framework of this approach the closed‐form analytical expressions are deduced for the matrix elements of the double exchange interaction, two‐electron transfer, and three‐center interaction that can be referred to as the potential exchange transfer. For the arbitrary nuclearity mixed‐valence systems the matrix elements of all …