1988-1989/49/1

Generalized Hopf bifurcations and applications to planar quadratic systems

${\displaystyle L_1}$ contains every two-dimensional normed space

Differential subordination and meromorphic functions

On certain classes of analytic functions

On a Mocanu type generalization of the Kaplan class K(α, β) of analytic functions

On the existence of solutions of some non-linear Dirichlet problems

Linear functional equations with variable coefficients

Stability of a transport equation

Propagation of weak singularities on characteristic surfaces of non-constant multiplicity

Exactness of expanding mappings

Plane wave decompositions of monogenic functions

Geometric objects with finitely determined germs