Geodesic

Tome 41 (1991) no. 1

Sommaire

On countable von Neumann regular rings
p. 1-7
Orthogonality spaces and atomistic orthocomplemented lattices
p. 8-23
On the structure of semilattice sums
p. 24-43
Equivalence of von Neumann regular and idempotent matrices
p. 44-50
Замечание по поводу статьи Габора Рeвeca
Spanning trees of infinite graphs
p. 52-60
A note on pervasive function algebras
p. 61-63
Some observations on local uniform boundedness principles
p. 64-74
Maximal antichains in a partially ordered set
p. 75-84
Varieties having distributive lattices of quasiorders
p. 85-89
Ternary structures and groupoids
p. 90-98
Convex directed subgroups of right ordered tree groups
p. 99-103
On the Mazur-Orlicz theorem
p. 104-109
On varieties of regular $*$-semigroups
p. 110-119
Factors of claw-free graphs
p. 120-130
Conditions for factorable relations
p. 131-134
Selfduality of the system of intervals of a partially ordered set
p. 135-140
Pseudo-complemented distributive groupoids
p. 141-148
Weak coherence of congruences
p. 149-154
Relation products of congruences and factor congruences
p. 155-159
Completions and closures of cyclically ordered groups
p. 160-169
On some subsets of $L_1(\mu,E)$
p. 170-179
Seventy years of Professor Jan Mařík
p. 180-183
News and Notices. Seventh Prague Topological Symposium