ARCHIV 19/20 zimni semestr
[Zpet]
UNIVERSAL ALGEBRA (NMAG405)
Lecture: Wed 11:30 - 13:00 K12
Practicals run by M. Kompatscher: Tue 11:30 - 13:00 K8
Grading:
- Practicals ("Z: Zapocet"): homeworks (60% from 4 best scores out of 5 homeworks)
- Lecture ("Zk: Zkouska"): 15% homeworks, 85% written test + possible oral examination
Literature:
| topics | recommended reading | homework |
2.10. | Motivation. Algebra (signature, type). Examples.
Ex.: Lattices vs. lattice ordered sets |
Bergman 1.1, 1.2 | |
9.10. | Lattices, complete lattices, closure operators.
Ex.: Isomorphism
|
Bergman 2.1, 2.2, 2.3 | |
16.10. | Algebraic lattices and closure operators. Galois correspondences.
Ex.: Distributive and modular lattices. The lattice of equivalence relations. |
Bergman 2.4, 2.5 | Homework 1 due 29 Oct |
23.10. | Subalgebras, products, quotients.
Ex.: Complete lattices, closure operators, Galois correspondences. |
Bergman 1.3, 1.4, 1.5 | |
30.10. | H,S,P operators, variety. Homomorphisms.
Ex.: Subalgebras, congruences. |
Bergman 1.1, 1.3, 3.1, 3.5 | Homework 2 due 12 Nov |
6.11. | Direct and subdirect decomposition
Ex.: Homomorphisms. Finite algebras generate locally finite varieties. |
Bergman 3.2, 3.3 | |
13.11. | ---
Ex.: ---. |
| |
20.11. | Subdirect decomoposition, SIs in congruence distributive vaieties
Ex.: Direct and subdirect decomposition. |
Bergman 3.4, 3.5, (5.2) | Homework 3 due 3 Dec |
27.11. | Terms, identities, free algebras.
Ex.: SIs in monnounary algebras. |
Bergman 4.3, 4.4 | |
4.12. | The syntax-semantics Galois correspondence, Birkhoff's theorem.
Ex.: Free algebras. |
Bergman 4.4, (4.6) | Homework 4 due 17 Dec |
11.12. | Clones. Free algebras as clones of term operations.
Ex.: Equational bases. |
Bergman 4.1 | |
18.12. | The operations-relations Galois correspondence.
Ex.: Clones. |
Bergman 4.2 | Homework 5 due 7 Jan |
8.11. | Mal'cev conditions: Mal'cev, majority.
Ex.: Algebraic and relational clones. |
Bergman 4.7 (part) | |
 
 
INTRODUCTION TO COMPLEXITY OF CSP (NMAG563)
Run by Antoine Mottet: Thr 9:00 seminar room of the Department of Algebra
References:
- short survey (Barto): here (see complexity column)
- longer survey (Barto, Krokhin, Willard): here
- Krokhin's tutorial: available here
- Another Krokhin's tutorial, a bit different topics:
available here
- My tutorial: PDF
- Paper Bulatov, Jeavons, Krokhin: Classifying the Complexity of Constraints Using Finite Algebras
PDF
 
 
KAFKA (NMMB551)
Wed 15:40 seminar room of KA web
 
 
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