3 papers
math.CT2026
Non-distributive lattices of thick tensor-ideals via trivial extensions
Charalampos Verasdanis
We construct non-rigid tensor-triangulated categories with non-distributive lattice of thick tensor-ideals.
math.CT2026
The singularity category of a separable extension
Charalampos Verasdanis
We prove that separable extensions of noetherian rings and finite étale morphisms of noetherian schemes give rise to separable extensions of singularity categories.
math.CT2024
Colocalizing subcategories of singularity categories
Charalampos Verasdanis
Utilizing previously established results concerning costratification in relative tensor-triangular geometry, we classify the colocalizing subcategories of the singularity category…