Two main topics are considered: The characterisation of finite homomorphism dualities for relational structures, and the splitting property of maximal antichains in the homomorphism order
Abstract. Let G and D, respectively, denote the partially ordered sets of homomorphism classes of fi...
Abstract. This paper is a survey of several results concerning finite dualities, a special case of t...
Abstract. This paper is a survey of several results concerning finite dualities, a special case of t...
Two main topics are considered: The characterisation of finite homomorphism dualities for relational...
AbstractThe motivation for this paper is threefold. First, we study the connectivity properties of t...
A structural condition is given for finite maximal antichains in the homomorphism order of relationa...
summary:Let $\Bbb G$ and $\Bbb D$, respectively, denote the partially ordered sets of homomorphism c...
summary:Let $\Bbb G$ and $\Bbb D$, respectively, denote the partially ordered sets of homomorphism c...
AbstractThe motivation for this paper is threefold. First, we study the connectivity properties of t...
summary:Let $\Bbb G$ and $\Bbb D$, respectively, denote the partially ordered sets of homomorphism c...
We investigate several variants of the homomorphism problem: given two relational structures, is the...
The motivation for this paper is threefold. First, we study the connectivity properties of the homom...
AbstractIn this paper we study dualities of graphs and, more generally, relational structures with r...
We provide a correspondence between the subjects of duality and density in classes of finite relatio...
AbstractWe provide a correspondence between the subjects of duality and density in classes of finite...
Abstract. Let G and D, respectively, denote the partially ordered sets of homomorphism classes of fi...
Abstract. This paper is a survey of several results concerning finite dualities, a special case of t...
Abstract. This paper is a survey of several results concerning finite dualities, a special case of t...
Two main topics are considered: The characterisation of finite homomorphism dualities for relational...
AbstractThe motivation for this paper is threefold. First, we study the connectivity properties of t...
A structural condition is given for finite maximal antichains in the homomorphism order of relationa...
summary:Let $\Bbb G$ and $\Bbb D$, respectively, denote the partially ordered sets of homomorphism c...
summary:Let $\Bbb G$ and $\Bbb D$, respectively, denote the partially ordered sets of homomorphism c...
AbstractThe motivation for this paper is threefold. First, we study the connectivity properties of t...
summary:Let $\Bbb G$ and $\Bbb D$, respectively, denote the partially ordered sets of homomorphism c...
We investigate several variants of the homomorphism problem: given two relational structures, is the...
The motivation for this paper is threefold. First, we study the connectivity properties of the homom...
AbstractIn this paper we study dualities of graphs and, more generally, relational structures with r...
We provide a correspondence between the subjects of duality and density in classes of finite relatio...
AbstractWe provide a correspondence between the subjects of duality and density in classes of finite...
Abstract. Let G and D, respectively, denote the partially ordered sets of homomorphism classes of fi...
Abstract. This paper is a survey of several results concerning finite dualities, a special case of t...
Abstract. This paper is a survey of several results concerning finite dualities, a special case of t...