Darboux property for functions of several variables
Darboux property of the Wronski determinant
De Rham's singular function and related functions.
Descriptive properties of density preserving autohomeomorphisms of the unit interval
We prove that density preserving homeomorphisms form a Π11-complete subset in the Polish space ℍ of all increasing autohomeomorphisms of unit interval.
Devil's staircases, ramps, humps and roller coasters
Directional qualitative cluster sets