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Title:[Theta]-graceful labelings of partial cubes
Authors:ID Brešar, Boštjan (Author)
ID Klavžar, Sandi (Author)
Files:URL http://dx.doi.org/10.1016/j.disc.2006.02.013
 
Language:English
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Delne kocke so grafi, ki dopuščajo izometrične vložitve v hiperkocke. V članku so vpeljane ▫$Theta$▫-gracilne označitve delnih kock kot naravna razširitev gracilnih označitev dreves. Pokazano je, da so različni razredi delnih kock ▫$Theta$▫-gracilni, na primer sodi cikli, Fibonaccijeve kocke in (na novo vpeljane) leksikografske podkocke. Kartezični produkt ▫$Theta$▫-gracilnih delnih kock je spet tak in sprašujemo se, ali je morda vsaka delna kocka ▫$Theta$▫-gracilna. Pokazana je povezava med ▫$Theta$▫-gracilnimi označitvami in reprezentacijami celih števil v določenih številskih sistemih. Predlaganih je tudi nekaj smeri za nadaljnje raziskovanje.
Keywords:matematika, teorija grafov, drevesa, Ringel-Kotzigova domneva, delne kocke, Fibonaccijeve kocke, hiperkocke, mathematics, graph theory, graceful labelings, trees, Ringel-Kotzig conjecture, partial cubes, Fibonacci cubes, hypercubes
Year of publishing:2006
Number of pages:str. 1264-1271
Numbering:Vol. 306, iss. 13
PID:20.500.12556/DKUM-51555 New window
UDC:519.17
ISSN on article:0012-365X
COBISS.SI-ID:14027865 New window
NUK URN:URN:SI:UM:DK:21UCXNJY
Publication date in DKUM:10.07.2015
Views:1239
Downloads:55
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Discrete mathematics
Shortened title:Discrete math.
Publisher:North-Holland
ISSN:0012-365X
COBISS.SI-ID:1118479 New window

Secondary language

Language:Unknown
Title:[Theta]-gracilne označitve delnih kock
Abstract:Partial cubes are graphs that allow isometric embeddings into hypercubes. ▫$Theta$▫-graceful labelings of partial cubes are introduced as a natural extension of graceful labelings of trees. It is shown that several classes of partial cubes are ▫$Theta$▫-graceful, for instance even cycles, Fibonacci cubes, and (newly introduced) lexicographic subcubes. The Cartesian product of ▫$Theta$▫-graceful partial cubes is again such and we wonder whether in fact any partial cube is ▫$Theta$▫-graceful. A connection between ▫$Theta$▫-graceful labelings and representations of integers in certain number systems is established. Some directions for further investigation are also proposed.


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