Zobrazeno 1 - 10
of 30
pro vyhledávání: '"L. H., Clark"'
Publikováno v:
Discrete Mathematics. 150(1-3):31-48
A graph G is called Ck-saturated if G contains no cycles of length k but does contain such a cycle after the addition of any new edge. Bounds are obtained for the minimum number of edges in Ck-saturated graphs for all k ≠ 8 or 10 and n sufficiently
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c70021dc1fcb7038ad4fd87d4b16a28
Publikováno v:
Discrete Mathematics. 125:15-30
The subdivision threshold for a graph F is the maximum number of edges, ex(n; FS), a graph of order n can have without containing a subdivision of F as a subgraph. We consider two instances: 1. (i) F is the graph formed by a cycle C one vertex of whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6c8d1ebeca5537d630ae344f03f6ab1
https://doi.org/10.1016/0012-365x(94)90140-6
https://doi.org/10.1016/0012-365x(94)90140-6
Publikováno v:
Graphs and Combinatorics. 8:225-231
Bollobas posed the problem of finding the least number of edges,f(n), in a maximally nonhamiltonian graph of ordern. Clark and Entringer showedf(n)=3n/2 for all evenn?36 andf(n)=(3n+1)/2 or (3n+3)/2 for all oddn?55. We showf(n)=(3n+1)/2 for all oddn?
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::135b7f07542ae715c809b1ee8d23ce62
https://doi.org/10.1007/bf02349959
https://doi.org/10.1007/bf02349959
Publikováno v:
Information Processing Letters. 42:19-24
In this paper we present an O( I V I + I E I) time algorithm which partitions the set of vertices of an undirected graph G = (I’, E) with maximum degree A and minimum degree 6 to {A, x} such that the following hold. (8 The number of edges with one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a17fca838d7cfa3db37f9bef929e43f
https://doi.org/10.1016/0020-0190(92)90126-g
https://doi.org/10.1016/0020-0190(92)90126-g
Autor:
S, Russ, L H, Clark
Publikováno v:
Proceedings of the Royal Society of Medicine. 14
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::456e1c554e5fa7575b59266d9bfe2da2
https://pubmed.ncbi.nlm.nih.gov/19981691
https://pubmed.ncbi.nlm.nih.gov/19981691
Publikováno v:
Proceedings of the Royal Society of Medicine. 23(12)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::574c0386584196761c78f5a5722a4229
https://pubmed.ncbi.nlm.nih.gov/19987810
https://pubmed.ncbi.nlm.nih.gov/19987810
Autor:
R. C. Entringer, L. H. Clark
Publikováno v:
Discrete Mathematics. 81:137-145
The maximum number of cutvertices in a connected graph of order n having minimum degree at least δ is determined for δ ⩾5.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eaada1be93d8df839268c11fec5ded68
https://doi.org/10.1016/0012-365x(90)90145-8
https://doi.org/10.1016/0012-365x(90)90145-8
Publikováno v:
Discrete Mathematics. 30:95-101
The k-closure of a graph G, as defined by Bondy and Chvátal, is the graph obtained from G by recursively joining pairs of nonadjacent vertices with degree-sum at least k. We determine the number of edges necessary for the k-closure of a graph to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::160afd19473dcbb5a9829fbd0c81e1ec
https://doi.org/10.1016/0012-365x(80)90110-7
https://doi.org/10.1016/0012-365x(80)90110-7
Autor:
L. H. Clark, W. J. Rees
Publikováno v:
The British Journal of Radiology. 5:432-445
These experiments were designed to give some indication of the quality and amount of the scattered radiation produced under conditions similar to those found in clinical practice. Many measurements, both of theoretical and clinical interest, have of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ef62cff00fcac411d527760a10e489a
https://doi.org/10.1259/0007-1285-5-53-432
https://doi.org/10.1259/0007-1285-5-53-432
Autor:
Tokue Takahashi, L H Clark
Publikováno v:
Journal of Scientific Instruments. 6:273-277
The spectra of the radiation emitted by mercury lamps in common use have been studied. Variations in the distribution of intensity in the spectra have been observed and traced to irregularities in the quartz envelopes of the lamps. A mercury lamp pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2eb3d11a2814299f1bc48f883b17b7f5
https://doi.org/10.1088/0950-7671/6/9/301
https://doi.org/10.1088/0950-7671/6/9/301