Facteurs et plans. I : Structure de finesse
Faserungen von Fahnenmengen
f-closure algebras
Field-independent representations of partially ordered sets.
Filters and annihilators in implication algebras
Filters in partially ordered sets
Finite atomistic lattices that can be represented as lattices of quasivarieties
We prove that a finite atomistic lattice can be represented as a lattice of quasivarieties if and only if it is isomorphic to the lattice of all subsemilattices of a finite semilattice. This settles a conjecture that appeared in the context of [11].
Finite hull systems and their implication bases. (Endliche Hüllensysteme und ihre Implikationenbasen.)
Finite orders and their minimal strict completion lattices
Whereas the Dedekind-MacNeille completion D(P) of a poset P is the minimal lattice L such that every element of L is a join of elements of P, the minimal strict completion D(P)∗ is the minimal lattice L such that the poset of join-irreducible elements of L is isomorphic to P. (These two completions are the same if every element of P is join-irreducible). In this paper we study lattices which are minimal strict completions of finite orders. Such lattices are in one-to-one correspondence with finite...
Finite topological spaces.
We show that the study of topological T0-spaces with a finite number of points agrees essentially with the study of polyhedra, by means of the geometric realization of finite spaces. In this paper all topological spaces are assumed to be T0.
Finite topologies and partitions.
Fixed edge theorems for complete lattices
Fixed point characterization of completeness on lattices for relatively isotone mappings
Fixed point results on a metric space endowed with a finite number of graphs and applications
In this paper, we consider self-mappings defined on a metric space endowed with a finite number of graphs. Under certain conditions imposed on the graphs, we establish a new fixed point theorem for such mappings. The obtained result extends, generalizes and improves many existing contributions in the literature including standard fixed point theorems, fixed point theorems on a metric space endowed with a partial order and fixed point theorems for cyclic mappings.
Fixed Points In Antimorphisms
Fixed points of antitone mappings in conditionally complete partially ordered sets.
Fixed points of fuzzy monotone maps
The existence of fixed points for monotone maps on the fuzzy ordered sets under suitable conditions is proved.
Fixed points of fuzzy monotone multifunctions
Under suitable conditions we prove the existence of fixed points of fuzzy monotone multifunctions.
Fixed Points Of Monotone Multifunctions In Partially Ordered Sets
Fixed points theorems for -fuzzy monotone maps.