AbstractWe give some inequalities for Steiner systems S(t,k,v) which improve the inequalityv≥ (t+ l)(k−t+l) and Fisher's inequalityv−t+l≥(k−t+l)(k−t+2)
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
AbstractWe give some inequalities for Steiner systems S(t,k,v) which improve the inequalityv≥ (t+ l)...
AbstractWe considert-designs withλ=1 (generalized Steiner systems) for which the block size is not n...
AbstractIt is shown that if a Steiner system S(t, k, v) (t ⩾ 3) is block schematic, then v is bounde...
AbstractA partial parallel class of blocks of a Steiner system S(t,k,v) is a collection of pairwise ...
AbstractSome natural upper bounds for the number of blocks are given. Only a few block sets achievin...
A partial $(n,k,t)_\lambda$-system is a pair $(X,\mathcal{B})$ where $X$ is an $n$-set of vertices a...
AbstractWe considert-designs withλ=1 (generalized Steiner systems) for which the block size is not n...
AbstractWe have determined all exponents of (n, k, L)-systems ofk⩽12 except for essentially two case...
AbstractLet fk(n) denote the maximum of k-subsets of an n-set satisfying the condition in the title....
Large sets of Steiner systems S(t,k,n) exist for all finite t and k with t < k and all infinite n...
This chapter discusses the structural properties of Steiner systems and especially the characterizat...
AbstractA Steiner system S(l, m, n) is a system of subsets of size m (called blocks) from an n-set S...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
AbstractWe give some inequalities for Steiner systems S(t,k,v) which improve the inequalityv≥ (t+ l)...
AbstractWe considert-designs withλ=1 (generalized Steiner systems) for which the block size is not n...
AbstractIt is shown that if a Steiner system S(t, k, v) (t ⩾ 3) is block schematic, then v is bounde...
AbstractA partial parallel class of blocks of a Steiner system S(t,k,v) is a collection of pairwise ...
AbstractSome natural upper bounds for the number of blocks are given. Only a few block sets achievin...
A partial $(n,k,t)_\lambda$-system is a pair $(X,\mathcal{B})$ where $X$ is an $n$-set of vertices a...
AbstractWe considert-designs withλ=1 (generalized Steiner systems) for which the block size is not n...
AbstractWe have determined all exponents of (n, k, L)-systems ofk⩽12 except for essentially two case...
AbstractLet fk(n) denote the maximum of k-subsets of an n-set satisfying the condition in the title....
Large sets of Steiner systems S(t,k,n) exist for all finite t and k with t < k and all infinite n...
This chapter discusses the structural properties of Steiner systems and especially the characterizat...
AbstractA Steiner system S(l, m, n) is a system of subsets of size m (called blocks) from an n-set S...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
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