On a remarkable class of subvarieties of a symmetric variety
โ Scribed by Silvana Abeasis
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 922 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0001-8708
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๐ SIMILAR VOLUMES
## Abstract In [1], Bull gave completeness proofs for three axiom systems with respect to tense logic with time linear and rational, real and integral. The associated varieties, Dens, Cont and Disc, are generated by algebras with frames {โ, <, >}, {โ, <, >} and {โค, <, >}, respectively. In this pape
We find a natural construction of a large class of symmetric graphs from point-and block-transitive 1-designs. The graphs in this class can be characterized as G-symmetric graphs whose vertex sets admit a G-invariant partition B of block size at least 3 such that, for any two blocks B, C of B, eithe