K. v. Liebermeister †1)
نویسندگان
چکیده
منابع مشابه
Line-Primitive 2-(v, k, 1) Designs with k/(k, v)<=10
A 2&(v, k, 1) design D=(P, L) is a system consisting of a finite set P of v points and a collection L of a k-subset of P, called lines, such that each 2-subset of P is contained in precisely one line. We shall always assume that 2<k<v. Let G Aut(D) be a group of automorphisms of a 2&(v, k, 1) design D. The group G is said to be line-transitive (line-primitive, respectively) on D if G is transit...
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A 2-(v, k, 1) design 9 = (S, 93) is a finite set S of u points and a collection $3 of k-subsets of S, called blocks, such that any 2-subset of S is contained in precisely one block. We will always assume that 2 <k < o. Let G d Aut 9 be a group of automorphisms of a 2-(u, k, 1) design 9. Those designs $3 for which G acts doubly transitively on the points have been classified by Kantor [6] and, f...
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A necessary condition for existence of a (v, k, k−1) near resolvable BIBD is v ≡ 1 (mod k). In this paper, we update earlier known existence results when k ∈ {9, 12, 16}, and show this necessary condition is sufficient, except possibly for 26, 37 and 149 values of v for k = 9, 12, 16 respectively. Some new results for existence of (9, 8)-frames of type 9 are also obtained; in particular, we sho...
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A $mu$-way $(v,k,t)$ $trade$ of volume $m$ consists of $mu$ disjoint collections $T_1$, $T_2, dots T_{mu}$, each of $m$ blocks, such that for every $t$-subset of $v$-set $V$ the number of blocks containing this t-subset is the same in each $T_i (1leq i leq mu)$. In other words any pair of collections ${T_i,T_j}$, $1leq i< j leq mu$ is a $(v,k,t)$ trade of volume $m$. In th...
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ژورنال
عنوان ژورنال: DMW - Deutsche Medizinische Wochenschrift
سال: 1901
ISSN: 0012-0472,1439-4413
DOI: 10.1055/s-0029-1187247