Lifting of divisible designs

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Autor/in:
Erscheinungsjahr:
2007
Medientyp:
Text
Schlagworte:
  • Divisible design
  • Finite projective space
  • Veronese variety
Beschreibung:
  • The aim of this paper is to present a construction of t-divisible designs (DDs) for t > 3, because such DDs seem to be missing in the literature. To this end, tools such as finite projective spaces and their algebraic varieties are employed. More precisely, in a first step an abstract construction, called t-lifting, is developed. It starts from a set X containing a t-DD and a group G acting on X. Then several explicit examples are given, where X is a subset of PG(n,q) and G is a subgroup of GL(n +1)(q). In some cases X is obtained from a cone with a Veronesean or an h-sphere as its basis. In other examples, X arises from a projective embedding of a Witt design. As a result, for any integer t >= 2 infinitely many non-isomorphic t-DDs are found.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/313bf8fc-4a40-4eab-9871-a5ba6ce65733