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Some non-isomorphic (4t + 4, 8t + 6, 4t + 3, 2t + 2, 2t + 1)- BIBD's

✍ Scribed by William Kocay; G.H.J. van Rees


Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
916 KB
Volume
92
Category
Article
ISSN
0012-365X

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📜 SIMILAR VOLUMES


Nonisomorphic solutions of (4t+3, 2t+1,t
✍ N. M. Singhi 📂 Article 📅 1975 🏛 Springer 🌐 English ⚖ 751 KB

## NONISOMORPHIC SOLUTIONS OF (4t+3,2t+l, t) DESIGNS ABSTRACT. A technique has been developed to get a large number of nonisomorphic solutions of a (4t+3, 2t+l, t) design. Some results are proved on the conjecture for Hadamard matrices.

Non-splitting Abelian (4 t, 2, 4 t, 2 t)
✍ G. Hughes 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 144 KB

Using cohomology we show that in studying the existence of an abelian non-splitting (4t, 2, 4t, 2t) relative difference set, D, we can assume the groups in question have a certain simple form. We obtain an explicit constructive equivalence between generalized perfect binary arrays and cocycles that

Darstellung vonr-1,c-2,t-3,t-4-Cyclobuta
✍ Scharf, Hans-Dieter ;Thünker, Walter 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 153 KB

## Abstract Perhydrocyclobuta[1,2‐d:3,4‐d']diimidazol‐2,5‐dion (**5**) wird zu __r__‐1,__c‐__‐2,__t__‐3,__t__‐4‐cyclobutantetraamin‐tetrahybrobromid (**3a**, Hal = Br) verseift, aus dem das freie Amin **3b**gewonnen wird. Die Struktur von **3a** und **3b** wird ^1^H‐NMR‐spektroskopisch bewiesen. Ei

Intensive NMR study of 1-t-butyl-3-methy
✍ Masaaki Yoshifuji; Stefan T. Osborn; Anthony J. Arduengo III; Kenneth A. Belmore 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 351 KB 👁 1 views

## Abstract Detailed ^1^__H__‐, ^13^__C__‐, and ^31^__P__ NMR studies of 1‐__t__‐butyl‐3‐methyl‐2,4‐bis(2,4,6‐tri‐__t__‐butylphenyl)‐1,3‐diphosphacyclobutane‐2,4‐diyl reveal several unusual coupling constants together with recognition of the diastereotopicity of the compound. These new data support

Characterization of {2(q+1)+2,2;t,q}-min
✍ Noboru Hamada; Tor Helleseth; Øyvind Ytrehus 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 677 KB

Hamada, N., T. Helleseth and 8. Ytrehus, Characterization of {2(q + 1) + 2, 2; t, q]-minihypers in PG(t, q) (t>3, q6{3,4}), Discrete Mathematics 115 (1993) 175-185. A set F offpoints in a finite projective geometry PG(t, q) is an (L m; t, q}-minihyper if m (>O) is the largest integer such that all