Title
A study of (x(q + 1), x; 2, q)-minihypers
Abstract
In this paper, we study the weighted (x(q + 1), x; 2, q)-minihypers. These are weighted sets of x(q + 1) points in PG(2, q) intersecting every line in at least x points. We investigate the decomposability of these minihypers, and define a switching construction which associates to an (x(q + 1), x; 2, q)-minihyper, with x 驴 q 2 驴 q, not decomposable in the sum of another minihyper and a line, a (j(q + 1), j; 2, q)-minihyper, where j = q 2 驴 q 驴 x, again not decomposable into the sum of another minihyper and a line. We also characterize particular (x(q + 1), x; 2, q)-minihypers, and give new examples. Additionally, we show that (x(q + 1), x; 2, q)-minihypers can be described as rational sums of lines. In this way, this work continues the research on (x(q + 1), x; 2, q)-minihypers by Hill and Ward (Des Codes Cryptogr 44:169---196, 2007), giving further results on these minihypers.
Year
DOI
Venue
2010
10.1007/s10623-009-9314-y
Des. Codes Cryptography
Keywords
Field
DocType
Minihypers,Multisets,Griesmer bound
Discrete mathematics,Combinatorics,Mathematics,Griesmer bound
Journal
Volume
Issue
ISSN
54
2
0925-1022
Citations 
PageRank 
References 
2
0.44
5
Authors
2
Name
Order
Citations
PageRank
Ivan Landjev1285.17
Leo Storme219738.07