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Two remarks on affine designs with classical parameters

✍ Scribed by Dieter Jungnickel; Hanfried Lenz

Publisher: Elsevier Science
Year: 1985
Tongue: English
Weight: 256 KB
Volume: 38
Category: Article
ISSN: 0097-3165
DOI: 10.1016/0097-3165(85)90031-7

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📜 SIMILAR VOLUMES

Exponential bounds on the number of desi

Exponential bounds on the number of designs with affine parameters

✍ David Clark; Dieter Jungnickel; Vladimir D. Tonchev 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 142 KB

## Abstract It is well‐known that the number of designs with the parameters of a classical design having as blocks the hyperplanes in __PG__(__n, q__) or __AG__(__n, q__), __n__≥3, grows exponentially. This result was extended recently [D. Jungnickel, V. D. Tonchev, Des Codes Cryptogr, published on

Correction to: “Exponential bounds on th

Correction to: “Exponential bounds on the number of designs with affine parameters”

✍ David Clark; Dieter Jungnickel; Vladimir D. Tonchev 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 126 KB

This article replaces the incorrect version of the article first published in J Combin Designs 18 (2010), 450-461. The publisher apologizes for this error.

On Two Presentations of the Affine Weyl

On Two Presentations of the Affine Weyl Groups of Classical Types

✍ Jian-yi Shi 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 154 KB

The main result of the paper is to get the transition formulae between the alcove form and the permutation form of w ∈ W a , where W a is an affine Weyl group of classical type. On the other hand, we get a new characterization for the alcove form of an affine Weyl group element which has a much simp

Remarks on two papers dealing with the r

Remarks on two papers dealing with the response of beams on two-parameter elastic foundations

✍ Moshe Eisenberger; Jacobo Bielak 📂 Article 📅 1989 🏛 John Wiley and Sons 🌐 English ⚖ 115 KB

The following comments are motivated by two recent papers concerned with the vibrations and buckling of beams supported on two-parameter elastic foundations. Both papers contain a mistake in the boundary conditions corresponding to a free end in that they use the stiffness matrices for the beam-foun

On symmetric designs with parameters (17

On symmetric designs with parameters (176, 50, 14)

✍ Zvonimir Janko 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 201 KB

On substructures of abelian difference s

On substructures of abelian difference sets with classical parameters

✍ Kevin Jennings 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 121 KB

## Abstract We constrain the structure of difference sets with classical parameters in abelian groups. These include the classical Singer 7 and Gordon et al. 4 constructions and also more recent constructions due to Helleseth et al. 5, 6 arising from the study of sequences with ideal autocorrelatio