activity
20042026
most citedTime Series Classification via Topological Data Analysis

51 citations · 96 across the 34 of their papers we have counts for

collaborators

41 papers

math.AG2026

The Supertrace Defect of a Graded Endomorphism

Esma Dirican Erdal, Atabey Kaygun

Motivated by Igusa's relation between relative cyclic homology and the logarithm of the graded Cartan determinant, we isolate the homological step behind the passage from logarithm…

math.RA2026

Signed Euler--Smith Profiles of Graded Algebras

Atabey Kaygun

Matrix Hilbert series retain local elementary-divisor data that their determinants discard. For locally finite positively graded elementary algebras whose vertex simples are of typ…

math.RA2026

Local Smith Profiles of Twisted Calabi--Yau Algebras

Atabey Kaygun

The matrix Hilbert series of a locally finite elementary twisted Calabi--Yau algebra is the inverse of a matrix polynomial. The Smith normal form of this polynomial over the power…

math.AT2026

Combinatorial Models for Linear Homotopy Theories

Atabey Kaygun

For a field of characteristic , we compare -linear chain complexes, semisimplicial vector spaces, augmented semisimplicial vector spaces, semicubical vector spaces, and a…

math.AT2026

Arboreal Objects and Their Homotopy Theory

Atabey Kaygun

We construct a category $\OrdFor$ as an arboreal extension of , whose morphisms are ordered forests composed by grafting. We define a full functor $π\co…

math.AG2026

Geometric Rigidity in Moduli Stacks of Algebras

Atabey Kaygun

We study quadratic moduli schemes of algebra laws on a fixed vector space under the transport-of-structure action of on . We construct an intr…