We show a purity assumption which seems to be implicit in the theory of the geometry of diagrams (developed by F. Buekenhout in: Geom. Dedicata 8 (1979), 253-257; 296-298; J. Combin. Theory Ser. A 27, (1979), 121-151); characterizations of those structures on which this assumption holds are given (pure structures), and a sufficent condition on a structure to be pure is also presented. © 1982.
Pasini, A. (1982). Diagrams and incidence structures. JOURNAL OF COMBINATORIAL THEORY. SERIES A, 33(2), 186-194 [10.1016/0097-3165(82)90006-1].
Diagrams and incidence structures
PASINI A.
1982-01-01
Abstract
We show a purity assumption which seems to be implicit in the theory of the geometry of diagrams (developed by F. Buekenhout in: Geom. Dedicata 8 (1979), 253-257; 296-298; J. Combin. Theory Ser. A 27, (1979), 121-151); characterizations of those structures on which this assumption holds are given (pure structures), and a sufficent condition on a structure to be pure is also presented. © 1982.
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