Koebe 1/4 theorem — The Koebe 1/4 theorem states that the image of an injective analytic function f:mathbb D omathbb C from the unit disk mathbb D onto a subset of the complex plane contains the disk whose center is f,(0) and whose radius is |f, (0)|/4. The theorem… … Wikipedia
Paul Koebe — Paul Koebe, 1930 in Jena Paul Koebe (* 15. Februar 1882 in Luckenwalde; † 6. August 1945 in Leipzig) war ein deutscher Mathematiker, der sich fast ausschließlich mit Funktionentheorie beschäftigte. Inhaltsverzeichnis … Deutsch Wikipedia
Paul Koebe — (February 15, 1882 ndash; August 6, 1945) was a 20th century German mathematician from Luckenwalde. His work dealt exclusively with the complex numbers, his most important results being on the uniformization of Riemann surfaces. He did his thesis … Wikipedia
Circle packing theorem — Example of the circle packing theorem on K5, the complete graph on five vertices, minus one edge. The circle packing theorem (also known as the Koebe–Andreev–Thurston theorem) describes the possible tangency relations between circles in the plane … Wikipedia
Liste der Kulturdenkmale in Berlin-Schöneberg — Lage von Schöneberg in Berlin In der Liste der Kulturdenkmale von Schöneberg sind die Kulturdenkmale des Berliner Ortsteils Schöneberg im Bezirk Tempelhof Schöneberg aufgeführt. Inhaltsverzeichnis … Deutsch Wikipedia
Bieberbach conjecture — In complex analysis, the Bieberbach conjecture or de Branges s theorem, asked by harvs|txt|first=Ludwig |last=Bieberbach|authorlink=Ludwig Bieberbach|year=1916 and proved by harvs|txt|authorlink=Louis de Branges de Bourcia|first=Louis |last=de… … Wikipedia
Midsphere — A polyhedron and its midsphere. The red circles are the boundaries of spherical caps within which the surface of the sphere can be seen from each vertex. In geometry, the midsphere or intersphere of a polyhedron is a sphere which is tangent to… … Wikipedia
de Branges's theorem — In complex analysis, the Bieberbach conjecture or de Branges s theorem, posed by Ludwig Bieberbach (1916) and proven by Louis de Branges (1985), states a necessary condition on a holomorphic function to map the open unit disk of the… … Wikipedia
Mandelbrot set — Initial image of a Mandelbrot set zoom sequence with a continuously coloured environment … Wikipedia
Planar graph — Example graphs Planar Nonplanar Butterfly graph K5 The complete graph K4 … Wikipedia