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Related papers: Log Crepant Birational Maps and Derived Categories

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We build on work of Muro-Raptis in [Ann. K-Theory 2 (2017), no. 2, 303-340] and Cisinski-Neeman in [Adv. Math. 217 (2008), no. 4, 1381-1475] to prove that the additivity of derivator K-theory holds for a large class of derivators that we…

K-Theory and Homology · Mathematics 2020-09-22 Ian Coley

In this paper, we prove the K- and L-theoretical Isomorphism Conjecture for Baumslag-Solitar groups with coefficients in an additive category.

Algebraic Topology · Mathematics 2014-05-27 Tom Farrell , Xiaolei Wu

We introduce a class of singular log schemes in three dimensions and conjecture that log schemes in this class admit log crepant log resolutions. We provide examples as evidence and relate this conjecture to the conjecture made in [4] and…

Algebraic Geometry · Mathematics 2025-03-17 Alessio Corti , Tim Graefnitz , Helge Ruddat

We argue for the addition of category theory to the toolkit of toric topology, by surveying recent examples and applications. Our case is made in terms of toric spaces X_K, such as moment-angle complexes Z_K, quasitoric manifolds M, and…

Algebraic Topology · Mathematics 2008-11-09 Taras Panov , Nigel Ray

We give a block decomposition of the equivariant derived category arising from a cyclically graded Lie algebra. This generalizes certain aspects of the generalized Springer correspondence to the graded setting.

Representation Theory · Mathematics 2016-10-03 George Lusztig , Zhiwei Yun

We describe Universal Coefficient Theorems for the equivariant Kasparov theory for C*-algebras with an action of the group of integers or over a unique path space, using KK-valued invariants. We compare the resulting classification up to…

K-Theory and Homology · Mathematics 2020-11-04 Ralf Meyer

We prove relative versions of many earlier results about almost invariant sets and splittings of groups. In particular, we prove a relative version of the algebraic torus theorem, and we prove the existence and uniqueness of relative…

Geometric Topology · Mathematics 2025-02-04 Peter Scott , Gadde Swarup

We suggest an extension of a certain logarithm of the total Johnson map in terms of solvable Lie groups. Here, the domain of the map is extended to a subset consisting of exponential solvable elements in the mapping class group of a…

Geometric Topology · Mathematics 2023-11-28 Takefumi Nosaka

The logarithmic multiplicative group is a proper group object in logarithmic schemes, which morally compactifies the usual multiplicative group. We study the structure of the stacks of logarithmic maps from rational curves to this…

Algebraic Geometry · Mathematics 2020-03-31 Dhruv Ranganathan , Jonathan Wise

For every strong coarse homology theory we construct a coarse assembly map as a natural transformation between coarse homology theories. We provide various conditions implying that this assembly map is an equivalence. These results…

K-Theory and Homology · Mathematics 2020-08-26 Ulrich Bunke , Alexander Engel

We obtain similar types of conclusions as that of Br\"{u}ck [1] for two differential polynomials which in turn radically improve and generalize several existing results. Moreover, a number of examples have been exhibited to justify the…

Complex Variables · Mathematics 2022-09-15 Abhijit Banerjee , Bikash Chakraborty

We introduce translations between display calculus proofs and labeled calculus proofs in the context of tense logics. First, we show that every derivation in the display calculus for the minimal tense logic Kt extended with general path…

Logic in Computer Science · Computer Science 2021-10-05 Agata Ciabattoni , Tim S. Lyon , Revantha Ramanayake , Alwen Tiu

We extend Orlov's result on representability of equivalences to schemes projective over a field. We also investigate the quasi-projective case.

Algebraic Geometry · Mathematics 2009-09-22 Matthew Robert Ballard

We prove the conjectural correspondence between logarithmic Gromov-Witten theory and logarithmic Donaldson/Pandharipande-Thomas theory for pairs $(Y|\partial Y)$ consisting of a toric threefold $Y$ and any torus invariant divisor $\partial…

Algebraic Geometry · Mathematics 2026-04-14 Davesh Maulik , Dhruv Ranganathan

We prove a categorical version of the Torelli theorem for cubic threefolds. More precisely, we show that the non-trivial part of a semi-orthogonal decomposition of the derived category of a cubic threefold characterizes its isomorphism…

Algebraic Geometry · Mathematics 2011-10-19 Marcello Bernardara , Emanuele Macri , Sukhendu Mehrotra , Paolo Stellari

The main result of this paper utilizes the representation graph of a group $G$, $R(V,G)$, and gives a general construction of a diagrammatic category $\mathbf{Dgrams}_{R(V,G)}$. The proof of the main theorem shows that, given explicit…

Category Theory · Mathematics 2025-02-10 Ryan Reynolds

We prove the finiteness of relative log pluricanonical representations in the complex analytic setting. As an application, we discuss the abundance conjecture for semi-log canonical pairs within this framework. Furthermore, we establish the…

Algebraic Geometry · Mathematics 2025-06-03 Osamu Fujino

We prove a general form of the statement that the cohomology of a quotient stack can be computed by the Borel construction. It also applies to the lisse extensions of generalized cohomology theories like motivic cohomology and algebraic…

Algebraic Geometry · Mathematics 2025-09-29 Adeel A. Khan , Charanya Ravi

For an abelian category C and a filtrant preordered set Lambda, we prove that the derived category of the quasi-abelian category of filtered objects in C indexed by Lambda is equivalent to the derived category of the abelian category of…

Algebraic Geometry · Mathematics 2013-06-07 Pierre Schapira , Jean-Pierre Schneiders

Let A be a finitely generated connected graded k-algebra defined by a finite number of monomial relations. Then there is a finite directed graph, Q, the Ufnarovskii graph of A, for which the categories QGr(A) and QGr(kQ) are equivalent:…

Rings and Algebras · Mathematics 2011-10-14 Cody Holdaway , S. Paul Smith