Zobrazeno 1 - 10
of 166
pro vyhledávání: '"M. J. Crabb"'
Publikováno v:
Semigroup Forum. 81:71-84
We investigate minimal, compact, square-closed subsets of the unit circle by identifying them with subsets of [0,1] and with sets of infinite words on two symbols; in particular, such sets arising from substitution maps. We consider problems on finit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db38b051abb93b4671fb82af7b2aba0b
https://doi.org/10.1007/s00233-010-9246-x
https://doi.org/10.1007/s00233-010-9246-x
Autor:
W. D. Munn, M. J. Crabb
Publikováno v:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics. 128:1023-1031
The monoids considered are the free monoid Mx and the free monoid-with-involution MIx on a nonempty set X. In each case, relative to a simply-defined involution, an explicit construction is given for a separating family of continuous star matrix repr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ced5fefb14b3aa270fd13bbd799fd12
https://doi.org/10.1017/s0308210500030043
https://doi.org/10.1017/s0308210500030043
Autor:
M. J. Crabb, W. D. Munn
Publikováno v:
Mathematical Proceedings of the Royal Irish Academy. :31-41
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5edee14b59ba8f81daec8630001d8c86
https://doi.org/10.1353/mpr.2007.0008
https://doi.org/10.1353/mpr.2007.0008
Autor:
W. D. Munn, M J Crabb
Publikováno v:
Mathematical Proceedings of the Royal Irish Academy. 107:31-41
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::598fc620dd0117b8a33e6a6849a05f98
https://doi.org/10.3318/pria.2007.107.1.31
https://doi.org/10.3318/pria.2007.107.1.31
Publikováno v:
Journal of the Australian Mathematical Society. 81:97-104
It is shown that the complex semigroup algebra of a free monoid of rank at least two is *-primitive, where * denotes the involution on the algebra induced by word-reversal on the monoid.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b0635f076024d4ff8d01bcf10de68ea
https://doi.org/10.1017/s1446788700014658
https://doi.org/10.1017/s1446788700014658
Publikováno v:
Studia Mathematica. 146:83-97
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb022da9a2a0a1261d99e01ca50f407b
https://doi.org/10.4064/sm146-1-6
https://doi.org/10.4064/sm146-1-6
Publikováno v:
Glasgow Mathematical Journal. 43:29-38
We study three extremal Banach algebras: (a) generated by two hermitian unitaries; (b) generated by an element of norm 1 all of whose odd positive powers are hermitian; (c) generated by an element of norm 1 all of whose even positive powers are hermi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5e22e030492622e80143117ee1cd26c
https://doi.org/10.1017/s0017089501010047
https://doi.org/10.1017/s0017089501010047
Publikováno v:
Semigroup Forum. 54:221-229
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::867577f9bbed6b4c815f2e82813a55e7
https://doi.org/10.1007/bf02676603
https://doi.org/10.1007/bf02676603
Autor:
W. D. Munn, M. J. Crabb
Publikováno v:
Semigroup Forum. 55:215-220
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b03008a53b996950054af9953eba0ef
https://doi.org/10.1007/pl00005923
https://doi.org/10.1007/pl00005923
Publikováno v:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics. 126:939-945
Let denote a subring of the complex field that contains 1 and is closed under complex conjugation. It is shown that, with respect to the involution induced by word-reversal, the algebra over of a free monoid admits a trace and a separating family of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb8d6fecb0ab79414012d73a61b6e7f5
https://doi.org/10.1017/s0308210500023179
https://doi.org/10.1017/s0308210500023179