Gemischtvalente Verbindungen Eu 4 P 3ΟͺΞ΄ realisieren bei Normal-bedingungen Kristallstrukturen, die in AbhΓ€ngigkeit von der Zahl der Defekte pro Formeleinheit (Ξ΄) entweder in einer Isotypiebeziehung zum kubischen Th 3 P 4 (I 4 Β―3d) stehen oder eine trigonal verzerrte Variante (R 3c) ausbilden. Parall
β¦ LIBER β¦
Necessary Conditions for Existence of Some Designs in Polynomial Metric Spaces
β Scribed by P. Boyvalenkov; S. Boumova; D. Danev
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 161 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0195-6698
No coin nor oath required. For personal study only.
β¦ Synopsis
In this paper we consider designs in polynomial metric spaces with relatively small cardinalities (near to the classical bounds). We obtain restrictions on the distributions of the inner products of points of such designs. These conditions turn out to be strong enough to ensure obtaining nonexistence results already for the first open cases.
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