Abstract:
Several important aspects of the Nelson-Erdős-Hadwiger classical
problem of combinatorial geometry are considered.
In particular, new lower bounds are obtained for the chromatic numbers
of the spaces $\mathbb{R}^n$ and $\mathbb{Q}^n$ with two, three or four
forbidden distances.
Bibliography: 28 titles.
Fulltext:
PDF file (735 kB)
