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7 results on '"Brouwer, A.E."'

1. Doing more with fewer bits

Author

Brouwer, A.E., Pellikaan, G.R., Verheul, E.R., Lam, K.Y., Okamoto, E., Xing, C.P., Discrete Mathematics, and Coding Theory and Cryptology

Published
1999

2. Characterization theorems for failed projective and affine planes

Author

Blokhuis, A., Brouwer, A.E., Wilbrink, H.A., Ray-Chaudhuri, D., Discrete Algebra and Geometry, and VF-programma Discrete Structuren (1985-1994) THE.WSK.203.85.25 (1985) TUE.WSK.303.90.25 (1990)

Abstract

We characterize the failed projective and affine planes introduced by Mendelsohn and Assaf [7). It is shown that no non-trivial FPP exists, and that a non-trivial FAP is either of Baer type, or related to a certain type of Bhaskar-Rao Design, of which probably only one example exists.

Published
1990

3. Near polygons and Fischer spaces

Author

Brouwer, A.E. (Andries), Cohen, A.M. (Arjeh), Hall, J.I., Wilbrink, H.A., Brouwer, A.E. (Andries), Cohen, A.M. (Arjeh), Hall, J.I., and Wilbrink, H.A.

Published
1994

4. Some unitals on 28 points and their embeddings in projective planes of order 9

Author

Brouwer, A.E., Aigner, M., and Jungnickel, D.

Subjects
Discrete mathematics, Pure mathematics, Blocking set, Collineation, Real projective plane, Duality (projective geometry), Finite geometry, Projective space, Projective plane, Non-Desarguesian plane, Mathematics
Abstract

We answer three questions posed by F. Piper by exhibiting (i) a unital that is not embeddable in a projective plane, (ii) a unital which is embeddable, and isomorphic with its dual, but not the set of absolute points of a polarity (in fact examples exist in each of the four known projective planes of order 9), (iii) a unital that can be embedded in two different planes.

Published
1981

5. Distance-regular graphs

Author

Brouwer, A.E., Cohen, A.M., Neumaier, A., Discrete Mathematics, and VF-programma Discrete Structuren (1985-1994) THE.WSK.203.85.25 (1985) TUE.WSK.303.90.25 (1990)

Published
1989

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