A basic for the type <n> hyperidentities of the medial variety of semigroups.
Shelly L. Wismath (1995)
Aequationes mathematicae
Mladen Bestvina (2011)
Fundamenta Mathematicae
Using Lipschitz distance on Outer space we give another proof of the train track theorem.
Schwartz, Richard Evan (2005)
Geometry & Topology
D. Held, J. Hrabě de Angelis (1989)
Rendiconti del Seminario Matematico della Università di Padova
Khovanov, Mikhail, Mazorchuk, Volodymyr, Stroppel, Catharina (2009)
Theory and Applications of Categories [electronic only]
Daniel Kirsten (2008)
RAIRO - Theoretical Informatics and Applications
We show that the termination of Mohri's algorithm is decidable for polynomially ambiguous weighted finite automata over the tropical semiring which gives a partial answer to a question by Mohri [29]. The proof relies on an improvement of the notion of the twins property and a Burnside type characterization for the finiteness of the set of states produced by Mohri's algorithm.
John Donnelly (2011)
Czechoslovak Mathematical Journal
We construct an example of a cancellative amenable semigroup which is the ascending union of semigroups, none of which are amenable.
Eric M. Friedlander (1984/1985)
Mathematische Zeitschrift
Bedřich Pondělíček (1971)
Czechoslovak Mathematical Journal
Witold Seredyński, Jacek Świątkowski (1993)
Colloquium Mathematicae
Peter Slodowy (1985)
Compositio Mathematica
S. Lajos (1970)
Matematički Vesnik
Makoto Hayashi (1982)
Mathematische Zeitschrift
Robert Tilidetzke (1981)
Czechoslovak Mathematical Journal
F. Knowles (1974)
Semigroup forum
H.E. Scheiblich (1971)
Semigroup forum
Chen, Guiyun (2006)
Sibirskij Matematicheskij Zhurnal
Ali Iranmanesh, Behrooz Khosravi (2002)
Commentationes Mathematicae Universitatis Carolinae
The order of every finite group can be expressed as a product of coprime positive integers such that is a connected component of the prime graph of . The integers are called the order components of . Some non-abelian simple groups are known to be uniquely determined by their order components. As the main result of this paper, we show that the projective symplectic groups where are also uniquely determined by their order components. As corollaries of this result, the validities of a...
Dilip S. Gajendragadkar (1980)
Journal für die reine und angewandte Mathematik
A.H. Clifford, T.E. Hall (1974)
Semigroup forum