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A note on $G_delta$-sets and associated low separation axioms
In this paper we obtain some low separation axioms by utilizing the notions of $G_delta$-closure and $G_delta$-open sets.
BA - Obecná matematika
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
Independent sets near the lower bound in bounded degree graphs
By Brook's Theorem, every n-vertex graph of maximum degree at most Delta >= 3 and clique number at most Delta is Delta-colorable, and thus it has an independent set of size at least n/Delta. We giv...
Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
- 2017 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
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Concrete Quantum Logics and Delta-Logics, States and Delta-States
)(Omega) of all even- coeven subsets of the countable set Omega possesses only Delta poset that is set-representable. If L = (Omega, L) is a logic and L is closed under the formation of symmetric difference, Delta,...
Physical sciences
- 2017 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
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Recurrence in Systems with Random Perturbations
We introduce the notion of (f, delta)-recurrence for the so-called (f, delta)-processes. We show that if a function of type 2 infinity has no attractive periodic omega-limit set, then each point belonging to its infinite om...
BA - Obecná matematika
- 2013 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Trichotomies for ideals of compact sets
We prove several trichotomy results for ideals of compact sets. Typically, we show that a ``sufficiently rich'' niversally Baire ideal is either F-sigma-delta-hard, or G-delta-sigma-hard, or else a sigma-ideal....
BA - Obecná matematika
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Measuring device with data recording for testing delta-sigma converters
Electronics for setting the operating parameters of delta-sigma modulator and processing output bitstream. The evaluation part consisting of microcontroller and CPLD circuit is due to the elimination of interference completely elect...
JA - Elektronika a optoelektronika, elektrotechnika
- 2013 •
- Gfunk •
- Link
Rok uplatnění
Gfunk - Funkční vzorek
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Fuzzy sets and cut systems in a category of sets with similarity relations
of sets with similarity relations with values in $Omega$ (called $Omega$-sets), which is an analogy of the category of classical sets with relations as morphisms. A fuzzyset in an $Omega$-set in the category SetR(...
BA - Obecná matematika
- 2012 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Inverse images of open sets under gradient mapping
For every pair of sets F,URd, d2, F being of Borel class F-sigma and U being such that (delta f)-1(U) and the Hausdorff dimension of (delta f)-1(U)F does not exceed 1. Moreover (delta f)(Rd)U. This generalizes both...
Pure mathematics
- 2019 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
A Categorial Contribution to the Kummer Theory of ideal numbers
The main result of this article is the description of all maximal delta-categories by means of alpha-ultrapseudofilters. A delta category is a subcategory of the category of all semigroups possessing a divisor theory in the sence of...
BA - Obecná matematika
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Characterization of Volterra spaces
In this paper we deal with a characterization of weak Volterra and Volterra spaces which is based on a general concept derived from a given nonempty system E of nonempty subsets of a topological space. It is shown that a system of all preopen G-d...
BA - Obecná matematika
- 2013 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
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