Geodesic

Sommaire du Fascicule no. 1

Remarks on pseudo MV-algebras
p. 5-19
Horizontal sums of basic algebras
p. 21-33
On the matrix negative Pell equation
p. 35-45
Hyperidentities in many-sorted algebras
p. 47-74

Sommaire du Fascicule no. 2

Special m-hyperidentities in biregular leftmost graph varieties of type (2,0)
p. 81-107
Function classes and relational constraints stable under compositions with clones
p. 109-121
Hypersatisfaction of formulas in agebraic systems
p. 123-151
The maximal subsemigroups of the ideals of some semigroups of partial injections
p. 153-167
Two constructions of De Morgan algebras and De Morgan quasirings
p. 169-180
Semi-open sets in biclosure spaces
p. 181-201
Knowledge bases and automorphic equivalence of multi-models versus linear spaces and graphs
p. 203-213