Hyperstructures and linear spaces with p
β
Silvia Pianta; Elena Zizioli
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Article
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1992
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Springer
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English
β 425 KB
We define a new class of hyperstructures called 'double hypergroupoids' suitable to describe incidence spaces with parallelism and relate geometrical configuratic,ns to algebraic properties. \* Supported by MURST (40~, 60~o). 1By P(~) we denote, as usual, the power set of ~.