Search Results - "BENNETT, E. F"
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Super-simple Steiner pentagon systems
Published in Discrete Applied Mathematics (01-03-2008)“…A Steiner pentagon system of order v ( SPS ( v ) ) is said to be super-simple if its underlying ( v , 5 , 2 ) -BIBD is super-simple; that is, any two blocks of…”
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Recent progress on the existence of perfect Mendelsohn designs
Published in Journal of statistical planning and inference (01-04-2001)“…A necessary condition for the existence of a ( v, k, λ)-PMD is λv(v−1)≡0 ( mod k) . For k=3, 4 , and 5, some fairly conclusive results have already been…”
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Journal Article Conference Proceeding -
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Perfect Mendelsohn designs with block size six
Published in Journal of statistical planning and inference (01-05-2000)“…A necessary condition for the existence of a ( v, k, λ)-perfect Mendelsohn design is λv( v−1)≡0 (mod k). For k=6 and λ=1, this condition gives v≡0,1,3 or 4…”
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Super-Simple Twofold Steiner Pentagon Systems
Published in Graphs and combinatorics (01-05-2012)“…A twofold pentagon system of order v is a decomposition of the complete undirected 2-multigraph 2 K v into pentagons. A twofold Steiner pentagon system of…”
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Resolvable perfect Mendelsohn designs with block size five
Published in Discrete mathematics (28-03-2002)“…A necessary condition for the existence of a resolvable (v,5,1)-perfect Mendelsohn design is v≡0 ( mod 5) . This condition is shown to be sufficient for v⩾215,…”
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Almost resolvable perfect Mendelsohn designs with block size five
Published in Discrete Applied Mathematics (15-01-2002)“…A necessary condition for the existence of an almost resolvable ( v,5,1)-perfect Mendelsohn design is v≡1 ( mod 5) . This condition is shown to be sufficient…”
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Super-simple, pan-orientable and pan-decomposable GDDs with block size 4
Published in Discrete mathematics (06-03-2010)“…In this paper we study ( 4 , 2 μ ) -GDDs of type g n possessing both the pan-decomposable property introduced by Granville, Moisiadis, Rees, On complementary…”
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Existence of Steiner seven-cycle systems
Published in Discrete mathematics (31-05-2002)“…A Steiner k-cycle system of order v is a pair (X,C), where C is a collection of k-cycles of K v based on a v-set X such that for any integer r, 1⩽r⩽k/2 , and…”
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A brief survey of perfect Mendelsohn packing and covering designs
Published in Discrete Applied Mathematics (30-07-1999)“…A ( v, k, λ)-perfect Mendelsohn packing (covering) design is a pair (X, A) where X is a v-set of points and A is a collection of cyclically ordered k-subsets…”
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Journal Article Conference Proceeding -
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Holey Steiner pentagon systems and related designs
Published in Journal of statistical planning and inference (01-08-2002)“…Certain types of holey Steiner pentagon systems (HSPSs) are investigated. New HSPSs are found, which improve an earlier existence result. These HSPSs are used…”
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Existence of directedwhist tournaments with the three person property 3PDWh(v)
Published in Discrete applied mathematics (01-09-2006)Get full text
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Minimum matrix representation of Sperner systems
Published in Discrete Applied Mathematics (15-01-1998)“…Let X be an n-element set and2 X be the family of subsets of x. IfK⊂ 2 x such that for any K 1, K 2 εK, k 1 ≠ K 2 implies K 1 ≠ K 2 thenKis called a Sperner…”
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Super-simple, Pan-orientable, and Pan-decomposable BIBDs with Block Size 4 and Related Structures
Published in Graphs and combinatorics (01-12-2009)“…Let v , k , and μ be positive integers. A tournament T of order k , briefly k -tournament, is a directed graph on k vertices in which there is exactly one…”
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Quintessential PBDs and PBDs with prime power block sizes ≥ 8
Published in Journal of combinatorial designs (01-07-2005)“…In this paper, we look at the existence of (v K) pairwise balanced designs (PBDs) for a few sets K of prime powers ≥ 8 and also for a number of subsets K of…”
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The existence of perfect Mendelsohn designs with block size 7
Published in Discrete mathematics (28-08-1998)“…Necessary conditions for existence of a ( v,k,λ) perfect Mendelsohn design (or PMD) are v ⩾ k and λv( v − 1) ≡ 0 mod k. When k = 7, this condition is satisfied…”
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Steiner pentagon covering designs
Published in Discrete mathematics (28-03-2001)Get full text
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Holey Steiner pentagon systems
Published in Journal of combinatorial designs (1999)“…In this article, it is shown that the necessary conditions for the existence of a holey Steiner pentagon system (HSPS) of type hn are also sufficient, except…”
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The spectrum of HSOLSSOM( hn) where h is even
Published in Discrete mathematics (15-10-1996)“…In this paper, we describe a generalized product construction and a construction using Steiner pentagon systems to obtain holey self-orthogonal Latin squares…”
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Quintessential pairwise balanced designs
Published in Journal of statistical planning and inference (01-09-1998)“…The existence of pairwise balanced designs with block sizes from a set K is studied. The spectrum of orders for which such PBDs exist is determined when {5}⊂…”
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Packings and coverings of the complete directed multigraph with 3- and 4-circuits
Published in Discrete mathematics (25-12-1996)“…Let λDK v denote the complete directed multigraph with v vertices, where any two distinct vertices x and y are joined by λ arcs ( x, y) and λ arcs ( y, x). By…”
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