Dirichlet domains for the Mostow lattices.
Discontinuous groups in some metric and nonmetric spaces
Discrete Laplace cycles of period four
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.
Dissections into equilateral triangles.
Dissections of a Polygon.
Dissections of Regular Polygons into Triangles of Equal Areas.
Distance formulas in complex hyperbolic space.
Distance preserving mappings of Grassmann graphs.
Dividing the Sides of a Triangle in Proportional Parts
Divisible tilings in the hyperbolic plane.
Dreiecks-Proportionalschnittkreise, ihre Mittenhyperbel und ein Pendant zum Satz von Morley.
Dreieckszerlegungen
Durchmesser und Mittelpunkte algebraischer Hyperflächen.
Dva vzorce pro krychlový obsah čtyrstěnu