## Found 12 Documents (Results 1–12)

### On a subgroup of finite index in the $$n$$-dimensional discrete group of affine transformations. (Russian)Zbl 0722.20035

Reviewer: K.Riives (Tartu)
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### Perfect quadratic forms and problems of arithmetic minima of quadratic forms. (Russian)Zbl 0675.10022

Reviewer: G.Gogishvili
MSC:  11H55 11H06
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### On computations of Bravais manifolds. (Russian)Zbl 0675.10021

Reviewer: G.Gogishvili
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MSC:  51M20
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MSC:  51M10
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### Point symmetry groups with invariant nondegenerate planes in the space $$^ 2{\mathbb{R}}_ 4$$. (Russian)Zbl 0669.51016

Reviewer: A.Kontrat’ev
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### Incomplete three-dimensional manifolds with locally Lobachevskij metric. (Russian)Zbl 0669.51015

Reviewer: J.Kateřiňák
MSC:  51M10 51H20
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### Three-dimensional manifolds of constant negative curvature and measure surfaces. (Russian)Zbl 0669.51014

Reviewer: J.Kateřiňák
MSC:  51M10 51H20
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### On motion groups of locally Lobachevskijan three-dimensional manifolds. (Russian)Zbl 0669.51012

Reviewer: P.Burda
MSC:  51H20 51M20
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### Torsion-free discrete groups in $$\Lambda ^ 3$$ generated by translations. (Russian)Zbl 0669.51011

Reviewer: P.Burda
MSC:  51H20 51M20
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### The covering of a three-dimensional unbounded convex body by larger homothetic ones. (Russian)Zbl 0667.52012

Reviewer: E.Jucovič
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### On derivation of four-dimensional semiregular polyhedra. (Russian)Zbl 0667.51008

Reviewer: E.Jucovič
MSC:  51M20 52Bxx
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