66. Arbeitstagung Allgemeine Algebra (AAA)
66th Workshop on General Algebra
19. - 22. Juni 2003 in Klagenfurt (Österreich)
June 19 - 22, 2003 in Klagenfurt (Austria) 


Program


Thursday, June 19th, 2003

17:45   Registration, Oman hall, z-129 by the main entrance

18:15   Informal welcome, central hall of main building


Friday, June 20th, 2003

8:15     Registration, Oman hall z-129 by the main entrance

Friday

HS 1

HS 2

HS 3

HS 4

09:00

Opening address, HS 1

09:30-10:15

Plenary: Rosenberg

 

 

 

 

Coffee break

11:00-11:30

Chajda

Wille

Pálfy

D. Artamonov

11:30-12:00

Eigenthaler

Schweigert

Wiesenbauer

N. Artamonov

12:00-12:30

Denecke

Kartashova

Winkler

V. Artamonov

 

Lunch

14:00-14.45

Plenary: Kowol

 

 

 

15:00-15.30

Graczyńska

Riecanova

Frisch

Romanowska

 

Coffee break

16:00-16:30

Länger

Halas

Galuszka

Dorninger

16:30-17:00

Márki

Radeleczki

Głazek

Kautschitsch

17:00-17:30

Pinsker

Dorfer

Aichinger

Bodirsky

17:30-18:00

Saeid

Jenča

Ecker

Pech


Saturday, June 21
st, 2003

Saturday

HS 1

HS 2

HS 3

09:00-09.45

Plenary: Wiegandt

 

 

10:00-10:30

Goldstern

Ponjavic

Bell

 

Coffee break

11:00-11:30

Pöschel

Pilitowska

Wendt

11:30-12:00

Reilly

Paseka

Kühr

12:00-12.30

Zadori

Kwuida

Usenko

 

Lunch

14:00-14:45

Plenary: Willard

 

 

15:00-15:30

Slapal

Bhavanari

Gasparyan

 

Coffee break

16:00-16:30

Katsov

 

Bican

16:30-17:00

Ricci

 

Pham

17:00-17:30

Stanovsky

 

 

17:45

Farewell, HS 1

19:30

Conference dinner: Mensa building



Scientific progam – Detailed timetable


Friday, June 20th, 2003
 

Friday 9:30 – 10:15

HS 1 Plenary
Uniformly delayed algebras; theory and the completeness problem
Ivo G. Rosenberg, Canada

Friday 11:00 – 11:30

Section 1 – HS 1
Deductive systems in Universal Algebra
Ivan Chajda, Czech Republic

Section 2 – HS 2
An Order-theoretic Mathematization of Linear Continuum Structures
Rudolf Wille, Germany

Section 3 – HS 3
Prime divisors of character degrees
Péter P. Pálfy, Hungary

Section 4 – HS 4
Free cochains with locally constant coefficients
Dmitry Artamonov, Russia 

Friday 11:30 – 12:00

Section 1 – HS 1
Congruence classes in universal algebra
Günther Eigenthaler, Austria

Section 2 – HS 2
On distributive semi near lattice
Dietmar Schweigert, Germany

Section 3 – HS 3
Über Probleme der Vertauschbarkeit in Kompositionshalbgruppen
Johann Wiesenbauer, Austria

Section 4 – HS 4
Localization of spectrum for polynomials over C*-algebras
Nikita Artamonov, Russia

Friday 12:00 – 12:30

Section 1 – HS 1
Identities of Clones
Klaus Denecke, Germany

Section 2 – HS 2
Lattices of topologies of unary algebras
Anna Kartashova, Russia

Section 3 – HS 3
Maximal abelian subgroups of Aut(R,<)
Reinhard Winkler, Austria

Section 4 – HS 4
Algebraic theory of quasicrystals
Viatcheslav Artamonov, Russia

Friday 14:00 – 14:45

HS 1 Plenary
Polynomial Functions on Groups – a Survey
Gerhard Kowol, Austria

Friday 15:00 – 15:30

Section 1 – HS 1
On P-compatible identities
Ewa Graczyńska, Poland

Section 2 – HS 2
Topological effect algebras
Zdenka Riecanova, Slovakia

Section 3 – HS 3
Integral closure and minimal polynomials of matrices
Sophie Frisch, Austria

Section 4 – HS 4
Feasible sets of finite posets
Anna Romanowska, Poland

Friday 16:00 – 16:30

Section 1 – HS 1
Determined congruence classes
Helmut Länger, Austria

Section 2 – HS 2
Distributive lattices with sectionally antitone involutions
Radomir Halas, Czech Republic

Section 3 – HS 3
Totally commutative idempotent groupoids
Jan Galuszka, Poland

Section 4 – HS 4
Chebyshev polynomials related to molecular graphs
Dietmar Dorninger, Austria

Friday 16:30 – 17:00

Section 1 – HS 1
To be announced
László Márki, Hungary

Section 2 – HS 2
Linear orders on general algebras
Sándor Radeleczki, Hungary

Section 3 – HS 3
General independence notions
Kazimierz Głazek, Poland

Section 4 – HS 4
Polynomialrings and the Feed-Back-Cyclization Property
Hermann Kautschitsch, Austria

Friday 17:00 – 17:30

Section 1 – HS 1
Clones on the natural numbers
Michael Pinsker, Germany

Section 2 – HS 2
Ordering convex directed subsets of a poset and congruences
Gerhard Dorfer, Austria

Section 3 – HS 3
Lower Bounds on the number of polynomial functions
Erhard Aichinger, Austria

Section 4 – HS 4
The Polymorphism Clones of omega-Categorical Structures
Manuel Bodirsky, Germany

Friday 17:30 – 18:00

Section 1 – HS 1
Quotient of Hyper BCK-algebras
Arsham Borumand Saeid, Iran

Section 2 – HS 2
Orthocomplete homogeneous effect algebras
Gejza Jenča, Slovakia

Section 3 – HS 3
1-affine complete Frobenius groups
Jürgen Ecker, Austria

Section 4 – HS 4
Algebraic Moore-Machines
(an interplay between algebraic- and coalgebraic automata theory)
Christian Pech, Germany


Saturday, June 21st, 2003

 

Saturday 9:00 – 9:45

HS 1 Plenary
Radical theory and its interpretation in various categories
Richárd Wiegandt, Hungary

Saturday 10:00 – 10:30

Section 1 – HS 1
The Galois connection between relations and automorphisms
Martin Goldstern, Austria

Section 2 – HS 2
On long chains in the partially ordered set of traces of maximal clones
Maja Ponjavic, Serbia and Montenegro (at present Germany)

Section 3 – HS 3
Some center-like subsets of rings
Howard Bell, Canada

Saturday 11:00 – 11:30

Section 1 – HS 1
Can algebras and homomorphisms in a quasivariety be reduced to unary algebras?
Reinhard Pöschel, Germany

Section 2 – HS 2
About new examples of bilattices
Agata Pilitowska, Poland

Section 3 – HS 3
A result on planar rings and matrix rings and generalisations to near-rings
Gerhardt Wendt, Austria

Saturday 11:30 – 12:00

Section 1 – HS 1
Varieties generated by completely 0-simple semigroups
Norman Reilly, Canada

Section 2 – HS 2
Conjunctivity in distributive quantales
Jan Paseka, Czech Republic

Section 3 – HS 3
Spectra of dually residuated lattice-ordered monoids
Jan Kühr, Czech Republic

Saturday 12:00 – 12:30

Section 1 – HS 1
Finite posets in locally finite varieties
Laszlo Zadori, Hungary

Section 2 – HS 2
Congruences of concept algebras
Leonard Kwuida, Germany

Section 3 – HS 3
The Double-Semigroups Categories
Vitaliy M. Usenko, Ukraina

 

Saturday 14:00 – 14:45

HS 1: Plenary
The finite basis problem
Ross Willard, Canada

Saturday 15:00 – 15:30

Section 1 – HS 1
Diagonality and powers of general algebraic systems
Josef Slapal, Czech Republic

Section 4 – HS 2
f-prime radical in gamma near-rings
Satyanarayana Bhavanari, India

Section 3 – HS 3
Poly-Grassmann Algebras and Polydeterminants
Armenak Gasparyan, Russia

Saturday 16:00 – 16:30

Section 1 – HS 1
Toward Homological Characterization of Semirings:
Serre’s Conjecture and Bass’s Perfectness in a Semiring Context
Yefim Katsov, USA

Section 3 – HS 3
Torsionfree precovers
Ladislav Bican, Czech Republic

Saturday 16:30 – 17:00

Section 1 – HS 1
Universal transformations between Menger systems and between analytic monoids
Gabriele Ricci, Italy

Section 3 – HS 3
On Leavitt Algebras
Anh Ngoc Pham, Hungary

Saturday 17:00 – 17:30

Section 1 – HS 1
Equational theory of group conjugation
David Stanovsky, Czech Republic

©2002/03 AAA66
Pub.  Jun 2003
(aaa66@uni-klu.ac.at)