activity
20152026
most citedDeformed dimensional reduction

4 citations · 11 across the 13 of their papers we have counts for

collaborators

14 papers

math.AG2026

Semiorthogonal decompositions for stacks

Chenjing Bu, Tudor Pădurariu, Yukinobu Toda

We give a systematic construction of semiorthogonal decompositions of derived categories of coherent sheaves on quasi-smooth derived algebraic stacks over , where the s…

math.AG2025

Cohomology of symmetric stacks

Chenjing Bu, Ben Davison, Andrés Ibáñez Núñez +2

We construct decompositions of: (1) the cohomology of smooth stacks, (2) the Borel--Moore homology of -shifted symplectic stacks, and (3) the vanishing cycle cohomology of $(-1)…

math.AG2024

Quasi-BPS categories for Higgs bundles

Tudor Pădurariu, Yukinobu Toda

We introduce quasi-BPS categories for twisted Higgs bundles, which are building blocks of the derived category of coherent sheaves on the moduli stack of semistable twisted Higgs b…

math.AG2023

Topological K-theory of quasi-BPS categories of symmetric quivers with potential

Tudor Pădurariu, Yukinobu Toda

In previous works, we introduced and studied certain categories called quasi-BPS categories associated to symmetric quivers with potential, preprojective algebras, and local surfac…

math.AG2022

The categorical DT/PT correspondence and quasi-BPS categories for local surfaces

Tudor Pădurariu, Yukinobu Toda

We construct semiorthogonal decompositions of Donaldson-Thomas (DT) categories for reduced curve classes on local surfaces into products of quasi-BPS categories and Pandharipande-T…

math.AG2022

The local categorical DT/PT correspondence

Tudor Pădurariu, Yukinobu Toda

In this paper, we prove the categorical wall-crossing formula for certain quivers containing the three loop quiver, which we call DT/PT quivers. These quivers appear as Ext-quivers…

math.AG2022

Categorical and K-theoretic Donaldson-Thomas theory of (part I)

Tudor Pădurariu, Yukinobu Toda

We begin the study of categorifications of Donaldson-Thomas invariants associated with Hilbert schemes of points on the three-dimensional affine space, which we call DT categories.…

math.AG2021

Relative stable pairs and a non-Calabi-Yau wall crossing

Tudor Pădurariu

Let be a smooth projective threefold and let be a birational map with . When is Calabi-Yau, Bryan-Steinberg defined enumerative…

math.AG2021★ 3 cited

Generators for categorical Hall algebras of surfaces

Tudor Pădurariu

For a smooth surface , Porta-Sala defined a categorical Hall algebra generalizing previous work in K-theory of Zhao and Kapranov-Vasserot. We construct semi-orthogonal decomposi…

math.RT2021

K-theoretic Hall algebras of quivers with potential as Hopf algebras

Tudor Pădurariu

For a symmetric quiver with potential satisfying a Künneth-type condition, we construct (positive and negative) extensions of its K-theoretic Hall algebra which are bialgeb…

math.AG2021★ 1 cited

Intersection K-theory

Tudor Pădurariu

For a proper map between varieties over with smooth, we introduce increasing filtrations on $\text{g…

math.AG2021★ 3 cited

Noncommutative resolutions and intersection cohomology for quotient singularities

Tudor Pădurariu

For a large class of good moduli spaces of symmetric stacks , we define noncommutative motives which can be regarded as categorificatio…

math.AG2020★ 4 cited

Deformed dimensional reduction

Ben Davison, Tudor Pădurariu

Since its first use by Behrend, Bryan, and Szendrői in the computation of motivic Donaldson-Thomas (DT) invariants of , dimensional reduction has proved…

math.AG2015

Groups of order are mixed Tate

Tudor Pădurariu

A natural place to study the Chow ring of the classifying space , for a linear algebraic group, is Voevodsky's triangulated category of motives, inside which Morel and Voev…