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» The translation planes of order 49 and their automorphism gr...
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MOC
1998
69views more  MOC 1998»
13 years 4 months ago
The translation planes of order 49 and their automorphism groups
Using isomorphism invariants, we enumerate the translation planes of order 49 and determine their automorphism groups.
Chris Charnes, Ulrich Dempwolff
COMBINATORICS
2006
95views more  COMBINATORICS 2006»
13 years 4 months ago
Nilpotent Singer Groups
Let N be a nilpotent group normal in a group G. Suppose that G acts transitively upon the points of a finite non-Desarguesian projective plane P. We prove that, if P has square or...
Nick Gill
JMIV
2010
131views more  JMIV 2010»
13 years 3 months ago
An SL(2) Invariant Shape Median
Median averaging is a powerful averaging concept on sets of vector data in finite dimensions. A generalization of the median for shapes in the plane is introduced. The underlying ...
Benjamin Berkels, Gina Linkmann, Martin Rumpf
CVPR
2008
IEEE
14 years 6 months ago
ANSIG - An analytic signature for permutation-invariant two-dimensional shape representation
Many applications require a computer representation of 2D shape, usually described by a set of 2D points. The challenge of this representation is that it must not only capture the...
José J. Rodrigues, Pedro M. Q. Aguiar, Jo&a...