The rectilinear Steiner problem is the problem of constructing the shortest rectilinear network in the plane connecting a given set of points, called terminals. The problem is known to be NP-complete in general. In this paper, we show that there is a polynomial time algorithm for solving the rectili
A polynomial time algorithm recognizing link trees
✍ Scribed by Peter Bugata; Attila Nagy; Roman Vávra
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 672 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
The link of a vertex u of a graph G is the subgraph induced by all vertices adjacent to u . If all the links of G are isomorphic to a finite graph L, then G is called a realization of L, and L is called a link graph.
At the Smolenice symposium of 1963, Zykov posed the problem of recognizing iink graphs. There are two versions of that problem, namely the finite (the existence of a finite realization is required) and the infinite one.
Bulitko (see "On Graphs with Prescribed Links of Vertices" [in
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