Sommaire

Sur les algèbres de Heyting symétriques
p. 1
Notes on the integral geometry in the hyperbolic plane
p. 239
Irreversible behaviour of a relativistic gas
p. 251
Transnormal graphs
p. 285
On a numerical method to approximate the solutions to bicriteria problems using a spline function
p. 289
Remark on a theory of classes used by A. Machado
p. 295
Problemas da teoria dos grafos e a sua relação com os problemas da cobertura e da partição de um conjunto
p. 299
On maxima of waiting times
p. 331
Some remarks on an identity of Catalan concerning the Fibonacci numbers
p. 341
Decomposition of a semiring into division semirings
p. 349
A new proof of Khinchine's theorem and concepts of unimodality
p. 357
Homomorphism kernels of a tetravalent modal algebra
p. 371
Higher order derivations of modules
p. 381
On the dam problem with boundary leaky condition
p. 399
On the intersection of maximal filters in distributive lattices
p. 413
Continuous generalized Toeplitz kernels in R
p. 419
Cyclic Boolean algebras and Galois fields $GF(2^k)$
p. 435
On the closed left ideals of the group algebra $CS_n$
p. 441
Non-Archimedean Nachbin spaces
p. 455
Orthomodular ordered sets and orthogonal closure spaces
p. 477
Sur la construction de certaines MS-algèbres
p. 489
Monotone scheme for finite difference equations concerning steady-state competing-species interactions
p. 497
Recursive method for the two dimensional finite Ising model
p. 511
Monadic epimorphisms and applications
p. 525
Actuação de António Aniceto Monteiro em Lisboa entre 1939 e 1942
p. V
António Aniceto Monteiro e o C.E.M. do Porto (1941/1944)
p. IX
O regresso de António Monteiro a Portugal de 1977 a 1979
p. XXXIII
Professor António Monteiro and contemporary mathematics in Argentina
p. XIX
The influence of António A. Ribeiro Monteiro in the development of Mathematics in Brazil
p. XV