Juhani Karhumäki

Mathematics (Department of Mathematics and Statistics)

karhumak@utu.fi

+358 40 589 6305

Vesilinnantie 5

Turku

Publications

5 of 5

On the centralizer of a finite set (2000) Proceedings of the 27th International Colloquium on Automata, Languages, and Programming ICALP 2000 Karhumäki Juhani, Petre Ion
(A4 Refereed article in a conference publication )
On the undecidability of freeness of matrix semigroups (1999)
- International Journal of Algebra and Computation
Cassaigne J, Harju T, Karhumaki J
(A1 Refereed original research article in a scientific journal)
A note on decidability questions on presentations of word semigroups (1997)
- Theoretical Computer Science
Choffrut C, Harju T, Karhumaki J
(A1 Refereed original research article in a scientific journal)
Compactness of systems of equations on completely regular semigroups (1997)
- Lecture Notes in Computer Science
Harju T, Karhumaki J, Petrich M
(A1 Refereed original research article in a scientific journal)
Compactness of systems of equations in semigroups (1995)
- Lecture Notes in Computer Science
Harju T, Karhumaki J, Plandowski W
(A1 Refereed original research article in a scientific journal)
THE EQUIVALENCE PROBLEM OF MULTITAPE FINITE AUTOMATA (1991)
- Theoretical Computer Science
HARJU T, KARHUMAKI J
(A1 Refereed original research article in a scientific journal)
DECIDABILITY OF THE MULTIPLICITY EQUIVALENCE OF MULTITAPE FINITE AUTOMATA (1990) Proc. 22nd ACM Symp. on Theory of Comput. HARJU T, KARHUMAKI J
(A4 Refereed article in a conference publication )
ON MORPHIC GENERATION OF REGULAR LANGUAGES (1986)
- Discrete Applied Mathematics
HARJU T, KARHUMAKI J, KLEIJN HCM
(A1 Refereed original research article in a scientific journal)
ON THE DEFECT THEOREM AND SIMPLIFIABILITY (1986)
- Semigroup Forum
HARJU T, KARHUMAKI J
(A1 Refereed original research article in a scientific journal)