1971-1972/25/3

On non-localized oriented angles

Stability in the large of certain non-linear systems of differential equations of order three

An ordinary differential equation homeomorphic with an essential control system

Extensions of Laplace transform spaces and their topologies

Partitions of spectral sets

Function classes pertaining to differential inequalities of parabolic type in unbounded regions

Convex functions of higher orders in Euclidean spaces

Bestimmung aller algebraischen Komitanten des symmetrischen Übertragungsparameters

Some theorems on the estimate and existence of solutions of integro-differential equations of parabolic type

The mean surface area of the boxes circumscribed about a convex body