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On b-acyclic chromatic number of a graphAnholcer, Marcin ; Cichacz, Sylwia, 1979- ; Peterin, IztokNaj bo ▫$G$▫ graf. Vpeljemo aciklično b-kromatično število grafa ▫$G$▫ kot analogijo na b-kromatično število grafa ▫$G$▫. Acikločno barvanje grafa ▫$G$▫ je preslikava ▫$c:V(G)\rightarrow ... \{1,\dots,k\}$▫, kjer je ▫$c(u)\neq c(v)$▫ za vsako povezavo ▫$uv\in E(G)$▫ in induciran podgraf na vozliščih katerihkoli dveh barvnih razredov ▫$i,j\in \{1,\dots,k\}$▫ je brez ciklov. Na množici vceh acikličnih barvanj grafa ▫$G$▫ definiramo relacijo, katere tranzitivno zaprtje poraja strogo delno urejenost. Najmanjše število barv njegovega minimalnega elementa je potem aciklično kromatično število ▫$A(G)$▫ grafa ▫$G$▫, medtem ko je največje število barv njegovega minimalnega elementa aciklično b-kromatično število ▫$A_b(G)$▫ grafa ▫$G$▫. Predstavimo več lastnosti invariante ▫$A_b(G)$▫. Posebej določimo ▫$A_b(G)$▫ za več znanih družin grafov, določimo nekatere meje za ▫$A_b(G)$▫, primerjamo ▫$A_b(G)$▫ z nekaterimi drugimi parametri in posplošimo močno orodje iz b-barvanj na aciklična b-barvanja.Source: Computational & Applied Mathematics. - ISSN 2238-3603 (Vol. 42, iss. 1, Feb 2023, art. 21 (20 str.))Type of material - article, component part ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 135453955
Author | Anholcer, Marcin ; Cichacz, Sylwia, 1979- ; Peterin, Iztok |
Title | On b-acyclic chromatic number of a graph |
Publication date | 2022-12-26 |
COBISS.SI-ID | 135453955 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
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Sodobni in novi metrični koncepti v teoriji grafov | J1-1693-2019 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Sodobne invariante grafov | J1-9109-2018 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
Files that belong to the publication
Link |
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https://link.springer.com/article/10.1007/s40314-022-02156-y |
https://dk.um.si/IzpisGradiva.php?id=84871 |
source: Computational & Applied Mathematics. - ISSN 2238-3603 (Vol. 42, iss. 1, Feb 2023, art. 21 (20 str.))
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Anholcer, Marcin | |
Cichacz, Sylwia, 1979- | |
Peterin, Iztok | 20839 |
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