Archivum mathematicum


ISSN 1212-5059 · Volume 42 (2006), No. 4 · Electronic Edition


This issue of Archivum Mathematicum is dedicated to prof. Jiri Rosicky

J. Adamek, M. Hebert, L. Sousa
A logic of orthogonality
p. 309-334: Abstract, gzip-ps (230 K), pdf (264 K)

F. Borceux, D. Bourn, P. Johnstone
Initial normal covers in bi-Heyting toposes
p. 335-356: Abstract, gzip-ps  (184 K), pdf (226 K)

M. Demlova, V. Koubek
On universality of semigroup varieties
p. 357-386: Abstract, gzip-ps (248 K), pdf (330 K)

T. Everaert, M. Gran
Relative commutator associated with varieties of n-nilpotent and of n-solvable groups
p. 387-396: Abstract, gzip-ps (144 K), pdf (125 K)

M. Grandis, W. Tholen
Natural weak factorization systems
p. 397-408: Abstract, gzip-ps (180 K), pdf (166 K)

J. Picado, A. Pultr
Sublocale sets and sublocale lattices
p.409-418: Abstract, gzip-ps (134 K), pdf (127 K)

H.-E. Porst
On corings and comodules
p. 419-425: Abstract, gzip-ps (137 K), pdf (115 K)

V. Trnkova
Clone propeties of topological spaces
p. 427-440: Abstract, gzip-ps (163 K), pdf (175 K)