Results 71 to 80 of about 1,000,377 (259)

Characterizations of kites as graceful graphs

open access: yesCubo
We introduce and study an infinite family of graceful graphs, which we call kites. The kites are graphs where a path is joined with a graph "forming" a kite.
Miroslav Haviar, Katarina Kotuľová
doaj   +1 more source

Edge even graceful labelling of some book graphs

open access: yesJournal of Taibah University for Science, 2018
Elsonbaty and Daoud introduced a new type of labelling of a graph G with p vertices and q edges called an edge even graceful labelling if there is a bijection f from the edges of the graph to the set $\{2, 4,\ldots , 2q\}$ such that, when each vertex is ...
S.N. Daoud, Ahmed N. Elsawy
doaj   +1 more source

Edge Odd Graceful Labeling of Cylinder and Torus Grid Graphs

open access: yesIEEE Access, 2019
Solairaju and Chithra introduced a new type of labeling of a graph G with p vertices and q edges called an edge odd graceful labeling if there is a bijection f from the edges of the graph to the set {1, 3, ...
S. N. Daoud
doaj   +1 more source

Computer search for graceful labeling: a survey

open access: yesElectronic Journal of Graph Theory and Applications, 2022
This paper surveys the main computer search results for finding graceful labeling of trees. The paper is devoted to the memory of Mirka Miller, who made an outstanding contribution to the area of graph labeling.
Ljiljana Brankovic, Michael J. Reynolds
doaj   +1 more source

A Triple‐Nanoparticle System for Controlled Graphene Nanosheet Stacking: Enabling K/Na‐Ion Battery Anodes with Ultra‐Fast Charging Exceeding Petroleum Vehicle Refueling

open access: yesAdvanced Science, EarlyView.
ABSTRACT Large‐ion (K, Na) battery systems mitigate uneven global lithium distribution, while their ability to attain recharge time shorter than refueling would remove the final barrier for secondary batteries to replace petroleum vehicles. However, their large‐ion chemistry makes ultra‐fast charging an even significant challenge.
Shukai Ding   +12 more
wiley   +1 more source

Decomposition of Certain Complete Graphs and Complete Multipartite Graphs into Almost-bipartite Graphs and Bipartite Graphs

open access: yesTheory and Applications of Graphs, 2020
In his classical paper [14], Rosa introduced a hierarchical series of labelings called ρ, σ, β and α labeling as a tool to settle Ringel’s Conjecture which states that if T is any tree with m edges then the complete graph K2m+1 can be decomposed into 2m +
G. Sethuraman, M. Sujasree
doaj   +1 more source

GRACEFUL LABEING AND RHO TOPI LABELING ON THE 8-BINTANG GRAPH WITH C3 FOR N ODD

open access: yesZERO: Jurnal Sains, Matematika dan Terapan, 2019
This paper we propose graceful labeling and  labeling on a graph then referred to as 8-Bintang graph, the basic idea of formulation graceful labeling and  labeling on an alfabet bintang graphs wih the question a stars graph .
Zul Amri, Tua Halomoan Harahap, I. Irvan
semanticscholar   +1 more source

Graceful and Odd Graceful Labeling of Graphs

open access: yesInternational Journal of Mathematics and Soft Computing, 2016
In this paper we prove gracefulness and odd gracefulness of arbitrary super -subdivision of triangular snake, where labeling of the vertices follows arithmetic progression.
openaire   +1 more source

A New Measure for Gracefulness of Graphs

open access: yesElectronic Notes in Discrete Mathematics, 2015
Abstract Let G = ( V , E ) be a ( p , q ) -graph without isolated vertices. The gracefulness grac ( G ) of G is the smallest positive integer k for which there exists an injective function f : V → { 0 , 1 , 2 , … , k } such that the edge induced function g f : E → { 1 , 2 ...
Jessica Pereira   +2 more
openaire   +1 more source

NAD+ Metabolism Licenses Zygotic Genome Activation via PARP7‐Mediated ADP‐Ribosylation of UHRF1 in Mouse Early Embryos

open access: yesAdvanced Science, EarlyView.
This study uncovers a metabolic‐epigenetic axis licensing zygotic genome activation (ZGA) in mouse embryos. A developmental decline in NAD+ levels activates PARP7, which mono‐ADP‐ribosylates and stabilizes UHRF1. This modification promotes the establishment of permissive histone acetylation marks, thereby facilitating timely ZGA.
Guangyi Cao   +13 more
wiley   +1 more source

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