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Homomorphisms of nets of fixed degree, with singular points on the same line. (English) Zbl 0331.50014


MSC:

51E20 Combinatorial structures in finite projective spaces
20N05 Loops, quasigroups
51N99 Analytic and descriptive geometry
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References:

[1] R. H. Bruck: Finite nets, I. Numerical invariants. Canad. Journ. Math. 3 (1951), 94-107. · Zbl 0042.38802 · doi:10.4153/CJM-1951-012-7
[2] R. H. Bruck: A survey of binary systems. Berlin-Göttingen-Heidelberg 1955.
[3] V. Havel: To the theory of 4-nets. (Czech); mimeographed in Department of Geometry of the Mathematics Institute of Charles University, Prague 1973, 87 pp.
[4] G. Pickert: Projektive Ebenen. Berlin-Göttingen-Heidelberg 1955. · Zbl 0066.38707
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