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Found 195 Documents (Results 1–100)

Bravais types of lattices from \(\mathbb{R}_ 1^ n\) that can be mapped on themselves by rotations around an imaginary axis only. (English) Zbl 0844.52009

Andrica, D. (ed.) et al., Proceedings of the 23rd conference on geometry and topology, Cluj-Napoca, Romania, September 27-29, 1993. Cluj-Napoca: “Babeş-Bolyai” Univ., Fac. of Math. and Comput. Science, 156-165 (1994).
Reviewer: J.M.Wills (Siegen)
MSC:  52C07 82D25
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A generalization of extension theorem. (English) Zbl 0846.52006

Andrica, D. (ed.) et al., Proceedings of the 23rd conference on geometry and topology, Cluj-Napoca, Romania, September 27-29, 1993. Cluj-Napoca: “Babeş-Bolyai” Univ., Fac. of Math. and Comput. Science, 151-155 (1994).
Reviewer: H.-D.Hecker (Jena)
MSC:  52C15
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On a property of the semi-Euclidean plane of symmetry of a point lattice in Minkowski space. (Romanian) Zbl 0845.52006

Andrica, D. (ed.) et al., Proceedings of the 23rd conference on geometry and topology, Cluj-Napoca, Romania, September 27-29, 1993. Cluj-Napoca: “Babeş-Bolyai” Univ., Fac. of Math. and Comput. Science, 20-26 (1994).
Reviewer: M.Turinici (Iaşi)
MSC:  52C07
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Algebra and tiling: homomorphisms in the service of geometry. (English) Zbl 0930.52003

The Carus Mathematical Monographs. 25. Washington, DC: Mathematical Association of America. xii, 207 p (1994).
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Two identities in geometry of numbers with applications. (English) Zbl 0820.11041

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 481-503 (1994).
Reviewer: J.M.Wills (Siegen)
MSC:  11H06 52C07 11H16
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Packing of regular pentagons on a sphere. (English) Zbl 0829.52011

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 475-480 (1994).
MSC:  52C17
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Regular circle packings. (English) Zbl 0819.52014

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 465-474 (1994).
Reviewer: W.Moser (Montreal)
MSC:  52C15
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Covering planar sets with sets of four times smaller diameter. (English) Zbl 0829.52009

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 461-463 (1994).
MSC:  52C15
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The HEUREKA-polyhedron. (English) Zbl 0826.51015

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 447-459 (1994).
MSC:  51M20 52C25
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The densest packing of ten congruent spheres in a cube. (English) Zbl 0819.52016

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 403-424 (1994).
Reviewer: W.Moser (Montreal)
MSC:  52C17
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The Euclidean space has 298 fundamental tilings with marked cubes by 130 space groups. (English) Zbl 0820.52014

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 363-388 (1994).
MSC:  52C22 51M20 20H15
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Classification of solid transitive simplex tilings in simply connected 3- spaces. I: The combinatorial description by figures and tables, results in spaces of constant curvature. (English) Zbl 0821.52004

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 311-362 (1994).
MSC:  52C22 20H15
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On five points in a plane convex body pairwise in at least unit relative distances. (English) Zbl 0822.52001

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 245-247 (1994).
MSC:  52A10 52C15
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On the maximal number of appearances of the minimal distance among \(n\) points in the plane. (English) Zbl 0818.52015

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 217-244 (1994).
Reviewer: P.Schmitt (Wien)
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Nine points on the hemisphere. (English) Zbl 0822.52005

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 189-196 (1994).
Reviewer: R.Dawson (Halifax)
MSC:  52A37 52C10
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On the number of the minima of \(N\)-lattices. (English) Zbl 0822.11049

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 161-172 (1994).
Reviewer: J.M.Wills (Siegen)
MSC:  11H31 52C07 11H50
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On the solidity of the hexagonal tiling. (English) Zbl 0830.52012

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 151-154 (1994).
MSC:  52C20 52C15 05B45
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On special integral Erdős point sets. (English) Zbl 0822.52008

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 139-149 (1994).
MSC:  52C10
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For most convex discs thinnest covering is not lattice-like. (English) Zbl 0819.52013

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 105-108 (1994).
Reviewer: W.Moser (Montreal)
MSC:  52C15 11H06
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Similar configurations and pseudo grids. (English) Zbl 0822.52004

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland, Colloq. Math. Soc. János Bolyai. 63, 85-104 (1994).
Reviewer: R.Dawson (Halifax)
MSC:  52A37 52C20
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Cakaudrove patterns. (English) Zbl 0820.52013

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 77-84 (1994).
Reviewer: E.Schulte (Boston)
MSC:  52C20 05B45
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Kaleidoscopes and mechanisms. (English) Zbl 0826.51016

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 67-75 (1994).
MSC:  51M20 52C25
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On multiple tiles in \(E^ 2\). (English) Zbl 0818.52016

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 39-43 (1994).
Reviewer: P.Schmitt (Wien)
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On the number of lattice hyperplanes which are needed to cover the lattice points of a convex body. (English) Zbl 0823.52006

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 27-31 (1994).
Reviewer: B.Kind (Bochum)
MSC:  52A40 52C07 11H06
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A remark on the packing density in the 3-space. (English) Zbl 0819.52015

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 17-22 (1994).
Reviewer: W.Moser (Montreal)
MSC:  52C17
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The densest \((n+1)\)-set in \(\mathbb{R}^ n\). (English) Zbl 0829.52004

Böröczky, K. (ed.) et al., Intuitive geometry. Proceedings of the 3rd international conference held in Szeged, Hungary, from 2 to 7 September, 1991. Amsterdam: North-Holland. Colloq. Math. Soc. János Bolyai. 63, 7-10 (1994).
MSC:  52A37 52A20 52C17
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Solution of the problem of comparing point sets to separate common subsets. (English. Russian original) Zbl 0821.52005

Crystallogr. Rep. 39, No. 4, 522-525 (1994); translation from Kristallografiya 39, No. 4, 586-589 (1994).
MSC:  52C99 51-04
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The \(E_ 8\) family of quasicrystals. (English) Zbl 0832.52007

Tanner, Elizabeth A. (ed.) et al., Noncompact Lie groups and some of their applications: Proceedings of the NATO advanced research workshop on noncompact Lie groups and their physical applications, held in San Antonio, Texas, January 4-8, 1993. Dordrecht: Kluwer Academic Publishers. NATO ASI Ser., Ser. C, Math. Phys. Sci. 429, 341-347 (1994).
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Zonotopal tilings and the Bohne-Dress theorem. (English) Zbl 0842.05018

Barcelo, Hélène (ed.) et al., Jerusalem combinatorics ’93: an international conference in combinatorics, May 9-17, 1993, Jerusalem, Israel. Providence, RI: American Mathematical Society. Contemp. Math. 178, 211-232 (1994).
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Combinatorial aspects of the Poincaré polynomial associated with a reflection group. (English) Zbl 0812.05070

Barcelo, Hélène (ed.) et al., Jerusalem combinatorics ’93: an international conference in combinatorics, May 9-17, 1993, Jerusalem, Israel. Providence, RI: American Mathematical Society. Contemp. Math. 178, 21-44 (1994).
MSC:  05E15 20F55 51F15 52C35
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Squaring rectangles: The finite Riemann mapping theorem. (English) Zbl 0818.20043

Abikoff, William (ed.) et al., The mathematical legacy of Wilhelm Magnus. Groups, geometry and special functions. Conference on the legacy of Wilhelm Magnus, May 1-3, 1992, Polytechnic Univ. Brooklyn, NY, USA. Providence, RI: American Mathematical Society. Contemp. Math. 169, 133-212 (1994).
MSC:  20F65 30C62 31A15 94C99 57N10 30F10 52C20
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