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Lattice Theory

Class at Faculty of Mathematics and Physics |
NMAG435

Syllabus

Basic properties of lattices: lattices as ordered sets, algebraic concept, homomorphisms, congruences and ideals, join-irreducible elements

Distributive lattices: characterization, free distributive lattices, congruences of distributive lattices, topological representation

Congruences and ideals: weak projectivity and perspectivity, distributive, standard and neutral elements and ideals, congruences of a cartesian product, modular and weakly modular lattices, distributivity of the congruence lattice of a lattice

Modular and semimodular lattices: characterization, Kurosh-Ore theorem, congruences in modular lattices, von Neumann theorem, Birghoff theorem, semimodular lattices, Jordan-Hölder theorem, geometric lattices, partition lattices, complemented modular lattices and projective geometries

Annotation

Introduction to the lattice theory: structure and basic properties of distributive and modular lattices, structure of congruences of lattices, free lattices, lattice varieties.