AbstractWe discuss colourings of elements of Steiner systems S(2,4,v) in which the elements of each block get precisely two colours. We show that there exist systems admitting such colourings with arbitrary large number of colours, as well as systems which are uncolourable
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 discuss colourings of elements of Steiner systems S(2,4,v) in which the elements of each ...
AbstractWe consider colourings of Steiner systems S(2,3,v) and S(2,4,v) in which blocks have prescri...
AbstractLet S(t, k, v) be any nontrivial Steiner system. In this paper we prove the nonexistence of ...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V call...
A Steiner triple system, STS(v), is said to be χ-chromatic if the points can be coloured using χ col...
A Steiner triple system has a bicoloring with m color classes if the points are partitioned into m s...
AbstractIn this paper we introduce the notion of a bicolour graph of a Steiner triple system. Given ...
A Steiner triple system has a bicoloring with m color classes if the points are partitioned into m ...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
AbstractAn algorithm is described which finds a proper 2-colouring of a Steiner quadruple system if ...
AbstractIn this paper we introduce the notion of a bicolour graph of a Steiner triple system. Given ...
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...
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 discuss colourings of elements of Steiner systems S(2,4,v) in which the elements of each ...
AbstractWe consider colourings of Steiner systems S(2,3,v) and S(2,4,v) in which blocks have prescri...
AbstractLet S(t, k, v) be any nontrivial Steiner system. In this paper we prove the nonexistence of ...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V call...
A Steiner triple system, STS(v), is said to be χ-chromatic if the points can be coloured using χ col...
A Steiner triple system has a bicoloring with m color classes if the points are partitioned into m s...
AbstractIn this paper we introduce the notion of a bicolour graph of a Steiner triple system. Given ...
A Steiner triple system has a bicoloring with m color classes if the points are partitioned into m ...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
AbstractAn algorithm is described which finds a proper 2-colouring of a Steiner quadruple system if ...
AbstractIn this paper we introduce the notion of a bicolour graph of a Steiner triple system. Given ...
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...
A Steiner system S(2, 4, v) is a v-element set V together with a collection B of 4-subsets of V cal...
DOI
Add to ORKG