3 papers
math.GT2026
Closed manifold surgery obstructions and the Oozing Conjecture
Ian Hambleton, Ozgun Unlu
We complete the description of surgery obstructions up to homotopy equivalence for closed oriented manifolds with finite fundamental group. New examples are presented of non-trivia…
math.AT2025
Simplicial lists in operad theory I
Redi Haderi, Ãzgün Ãnlü
We define a category whose objects are sets and morphisms are mappings which assign to an element in the domain an ordered sequence (list) of elements in the codoma…
math.CT2024
The Euler Characteristic of Finite Categories
Mustafa Akkaya, Ãzgün Ãnlü
We associate a rational number to every category whose object and morphism sets are finite. We show that the assignment is additive under disjo…