Traditional and present-day topics in real analysis

The legacy of Professor Jan Stanisław Lipiński for the sake of the development of mathematics in Gdańsk 1969-1998
Convergence of sequences of measurable functions
In uniform convergence and some related types of convergence
Points of quasicontinuity and of similar generalizations of continuity
Topological and algebraic aspects of subsums of series
In the abstract density topologies generated by lower and almost lower density operators.