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- V. G. Naidenko, Yury L. Orlovich
- ArXiv
- 2001

For a given finite class of finite graphs H, a graph G is called a realization of H if the neighbourhood of its any vertex induces the subgraph isomorphic to a graph of H. We consider the following problem known as the Generalized Neighbourhood Problem (GNP): given a finite class of finite graphs H, does there exist a non-empty graph G that is a realization… (More)

- V. G. Naidenko, Yury L. Orlovich
- ArXiv
- 2001

It is shown that in star-free graphs the maximum independent set problem, the minimum dominating set problem and the minimum independent dominating set problem are approximable up to constant factor by any maximal independent set.

- V. G. Naidenko
- ArXiv
- 2001

It is shown that there cannot be any algorithm that for a given nondeter-ministic polynomial-time Turing machine determinates whether or not the language recognized by this machine belongs to P .

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