1981, f. 2, tomul XXVII

Cazacu, C.: A depth-space analysis of algorithms, p. 239
Geanău, M.: Sur un invariant dans un topos élémentaire, p. 247
Calude, C.; Vieru, V.: A note on Knuth’s iterated powers, p. 253
Schramm, R.: On the global behaviour of differentiable functions in non archimedean fields, p. 257
Thandapani, E.; Agarwal R.P.: Some new discrete inequalities in two independent variables, p. 269
Pop, I.: A shape theory for closure algebras, p. 279
Hasanis, T.: Hipersurfaces of a Riemannian manifold and a pinching problem on the second fundamental form, p. 287
Bejancu, A.: Hypersurfaces of quaternion space forms, p. 291
Mozgawa, W.: Quasi-connections in the semiholonomic frame bundle of second order and their differential invariants, p. 297
Crăciunaș, S.: Applications quasi-conformes sur des produits finis d’espaces normés, p. 317
Postolică, V.: Spline functions in H-locally convex spaces, p. 333
Stedry, M.: Time-periodic solutions to a class of first order hyperbolic systems, p. 379
Havârneanu, T.: On the exponential stability of the solutions of a class of functional differential equations with delay, p. 353
Pachpatte, B.G.: On certain integral inequalities for partial differential and integral equations, p. 365
Pașa, G.: L’homogeneisation d’un problem non-lineaire, p. 375
Vâță, P.: Approximate solution of nonlinear Volterra integral equations, p. 381
Calistru, N.: On the convergence of some multistep methods, p. 393
Sempi, C.: Why Shannon’s entropy: a further reason, p. 403
Melter, R.A.; Tomescu, I.: Remarks on distances in graphs, p. 407
Melter, R.A.; Rudeanu, S.: A measure for Boolean algebras of central tendency, p. 411
Masalagiu, C.: On regularity of time-variant languages, p. 417
Borș, C.I.: On the uniqueness of solution in Saint-Venant problem, p. 421
Book reviews, p. 429