8 documents found

Dissertation
2008-06-20

Internationalisierung und Rechtsformenwahl innerhalb der Europaischen Union

Any German company engaging in business beyond the boundaries of Germany in other member states of the European Union (EU) has, to date, been forced to set up in those countries branches which are not independent, or to set up subsidiaries in a legal format which accords with the laws of the land...
Article / Chapter
All rights reserved
2008-06-20

On spanning tree congestion

We prove that every connected graph G of order n has a spanning tree T such that for every edge e of T the edge-cut defined in G by the vertex sets of the two components of T - e contains at most n^{\frac{3}{2}} many edges which solves a problem posed by Ostrovskii (Minimal congestion trees, Discrete...
Article / Chapter
All rights reserved
2008-06-20

Edge-injective and edge-surjective vertex labellings

For a graph G = (V,E) we consider vertex-k-labellings f : V \rightarrow {1,2,...,k} for which the induced edge weighting w : E \rightarrow {2,3,..., 2k} with w(uv) = f(u) + f(v) is injective or surjective or both. We study the relation between these labellings and the number theoretic notions of an additive...

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