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- Sascha Kurz, Valery Mishkin
- Discrete & Computational Geometry
- 2013

- Peter Biryukov, Valery Mishkin
- 2007

In answer to a question of Macpherson and Neumann related to the classiication of maximal subgroups of innnite symmetric groups, we characterize set ideals on an innnite set X whose stabilizers in the symmetric group Sym(X) are maximal subgroups. Speciically, for an ideal I containing all subsets of cardinality less than jXj, the stabilizer S fIg is maximal… (More)

We study open sets P in normed spaces X attaining a large volume while avoiding pairs of points at integral distance. The proposed task is to find sharp inequalities for the maximum possible d-dimensional volume. This problem can be viewed as an opposite to known problems on point sets with pairwise integral or rational distances.

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