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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Journal of Geometryarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Journal of Geometry
Article . 1991 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
zbMATH Open
Article . 1991
Data sources: zbMATH Open
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Biplanes and near biplanes

Authors: Assmus, E. F. jun.; Prince, Alan R.;

Biplanes and near biplanes

Abstract

The authors produce an infinite class of combinatorial objects which they call near biplanes. A near biplane is defined as follows: it is a square 1-design with the property that its \(V\times V\) incidence matrix satisfies (i) the inner product of any two distinct rows is 0, 2 or 4; (ii) for any fixed row the sum of the inner products with the remaining rows is \(2(v-1).\) The main theorem is reduced to the following statement: (a) For \(q=4\), either choice of orbit gives rise to a biplane with parameters \(v=11\), \(k=5\), \(\lambda =2;\) (b) For \(q=8\), there is a unique choice of orbit (from the four possible) which gives rise to a biplane with parameters \(v=37\), \(k=9\), \(\lambda =2;\) (c) For \(q>8\), we never obtain a biplane (for any choice of orbit).

Related Organizations
Keywords

near biplanes, General block designs in finite geometry, Combinatorial aspects of block designs

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
14
Average
Top 10%
Top 10%
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