Invited talk to the 9th pan-Hellenic Algebra and Number Theory Conference , 12-13 May 2023 (Aristotle University of Thessaloniki, Department of Mathematics).

Conference webpage: 9th pan-Hellenic Algebra and Number Theory Conference

Invited talk to the 9th pan-Hellenic Algebra and Number Theory Conference , 12-13 May 2023 (Aristotle University of Thessaloniki, Department of Mathematics).

Conference webpage: 9th pan-Hellenic Algebra and Number Theory Conference