De l'infinitésimal au local (Thèse de Doctorat d'État)
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Jacques Penon (1985)
Diagrammes
M. Katz (1989)
Discrete & computational geometry
Bruno Budinský, Zdeněk Novák (1971)
Aplikace matematiky
Anders Kock (1981)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
Hans-Peter Schröcker (2012)
Open Mathematics
We study discrete conjugate nets whose Laplace sequence is of period four. Corresponding points of opposite nets in this cyclic sequence have equal osculating planes in different net directions, that is, they correspond in an asymptotic transformation. We show that this implies that the connecting lines of corresponding points form a discrete W-congruence. We derive some properties of discrete Laplace cycles of period four and describe two explicit methods for their construction.
Govaert, Eline, Van Maldeghem, Hendrik (2002)
Beiträge zur Algebra und Geometrie
Anders Kock, Gonzalo Reyes (2006)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
Jussi Väisälä (1982)
Colloquium Mathematicae
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