Geodesic

Introducing a topology by an operation of a set-theoretic boundary
Remark on some theorem of Zajíček
Two remarks about surfaces
Fixed point index for a new class of nonlinear noncompact operators
Upper and lower limits with respect to the m-ideal
Holomorfic solution of nonlinear generalized differential equation
On density topologies generated by ideals
Some remarks on nonmeasurable almost invariant sets
On the topologies generating quasi-isomorphic rings of continuous functions
Small sets in uncountable Abelian groups
Functions with fibres large on each nonvoid open set
On ϭ-ideals without maximal extension
An integral formula for a riemannian manifold with two ortogonal distributions