Department of Computer Science | Institute of Theoretical Computer Science | CADMO

Prof. Emo Welzl and Prof. Bernd Gärtner

Mittagsseminar Talk Information |

**Date and Time**: Tuesday, May 13, 2008, 12:15 pm

**Duration**: This information is not available in the database

**Location**: OAT S15/S16/S17

**Speaker**: Alexandru Tomescu (Univ. of Bukarest)

Topological indices and graph invariants based on the distances between the vertices of a graph are widely used in theoretical chemistry to establish relations between the structure and the properties of molecules. One of these indices is the degree distance, which also takes into account the degree of each vertex. In this talk I will discuss two methods to obtain minimal graphs: one is based on a set of transformations on the degree sequence of a graph, and the other one makes a correspondence to minimal graphs w.r.t. the sum of squares of the degrees of the vertices.

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