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A combinatorial proof of Kneser's conjecture
Kneser's conjecture, a purely combinatorial statement, has several topological proofs. We show how continuous arguments can be eliminated and obtain a purely combinatorial proof....
BA - Obecná matematika
- 2004 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Tame parts of free summands in coproducts of Priestley spaces
Infinite coproducts of Priestley spaces are rather complex compactifications of their topological sums. One encounters new combinatorial, and new topological phenomena. If the summands are linearly ordered, there are (as it...
BA - Obecná matematika
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Effective Topological Degree Computation Based on Interval Arithmetic
We describe a new algorithm for calculating the topological degree deg (f, B, 0) where B subseteq Rn is a product of closed real intervals and f : B to Rn is a real. The algorithmcleanly separates numerical from combinatorial comput...
BA - Obecná matematika
- 2015 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Iteration theory: dynamical systems and functional equations
The aim of this paper is to give an account of some problems considered in the past years in the setting of Discrete Dynamical Systems and Iterative Functional Equations, some new research directions and also state some open problems....
BA - Obecná matematika
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Enyo Core Topology
Analyzer and optimizer of topology of solutions space in a task of optimisation of reload patterns in nuclear rectors in nuclear power plants. From mathematical point of view it solves the problem of decomposition and subsequent optimisation...
BB - Aplikovaná statistika, operační výzkum
- 2014 •
- R
Rok uplatnění
R - Software
Jan Pelant (18.2.1950-11.4.2005)
Jan Pelant obtained his first results in combinatorics and graph theory, especially in algebraic combinatorics and the theory of tournaments. Later on, his main interest shifted to topology and functional analysis but even in these fields he...
BA - Obecná matematika
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Extending continuous maps: polynomiality and undecidability
We consider several basic problems of algebraic topology, with connections to combinatorial and geometric questions, from the point of view of computational complexity. The extension problem asks, given topological spaces X...
IN - Informatika
- 2013 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
W-symmetry, topological vertex and affine Yangian
degenerate representations of W1+infinity are given by the topological vertex that are difficult to study in the W1+infinity picture turn out to have a simple combinatorial......
Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
- 2016 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Homomorphisms between graphs embedded in surfaces
combinatorial framework for various topological features of a map) by designing operations on vertices and edges that respect the surface topology; we thus obtain the first definition of map homomorphism that preserves bot...
Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
- 2024 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Mathias forcing and combinatorial covering properties of filters
We give topological characterizations of filters ... on omega such that the Mathias forcing ... adds no dominating reals or preserves ground model unbounded families. This allows us to answer some questions of Brendle, Guzmán, Hrušák, Martín...
BA - Obecná matematika
- 2015 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
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