Effective descriptive set theory refines classical descriptive set theory by emphasising computability and algorithmic aspects in the study of definable sets and functions, particularly within Polish ...

We study randomness beyond Π 1 1 -randomness and its Martin-Löf type variant, which was introduced in [16] and further studied in [3]. Here we focus on a class strictly between Π 1 1 and Σ 2 1 that is ...

This is a survey paper on the descriptive set theory of hereditary families of closed sets in Polish spaces. Most of the paper is devoted to ideals and σ-ideals of closed or compact sets.

The 8th Workshop on Generalized Descriptive Set Theory will foster discussion and collaboration in the field. It will cover topics such as model-theoretic applications, cardinal characteristics, ...

The 8th Workshop on Generalized Descriptive Set Theory continues a series that began in 2014. Since its first edition, the Workshop on Generalized Descriptive Set Theory has been a key venue for ...