Completion, Čech and local homology and cohomology
P Schenzel, AM Simon - Interactions Between Them. Springer, Cham, 2018 - Springer
Students of mathematics learn how to complete the rational numbers Q using the distance
metric in order to obtain the real numbers R (see eg [24, Chap. 2]). In lectures on number …
metric in order to obtain the real numbers R (see eg [24, Chap. 2]). In lectures on number …
[HTML][HTML] On noncommutative bounded factorization domains and prime rings
JP Bell, K Brown, Z Nazemian, D Smertnig - Journal of Algebra, 2023 - Elsevier
A ring has bounded factorizations if every cancellative nonunit a∈ R can be written as a
product of atoms and there is a bound λ (a) on the lengths of such factorizations. The …
product of atoms and there is a bound λ (a) on the lengths of such factorizations. The …
Flatness and completion revisited
A Yekutieli - Algebras and Representation Theory, 2018 - Springer
We continue investigating the interaction between flatness and a a-adic completion for
infinitely generated A-modules. Here A is a commutative ring and aa is a finitely generated …
infinitely generated A-modules. Here A is a commutative ring and aa is a finitely generated …
Weak proregularity, derived completion, adic flatness, and prisms
A Yekutieli - Journal of Algebra, 2021 - Elsevier
We begin by recalling the role that weak proregularity of an ideal in a commutative ring has
in derived completion and adic flatness. We also introduce the new concepts of idealistic …
in derived completion and adic flatness. We also introduce the new concepts of idealistic …
Lectures on non-commutative K3 surfaces, Bridgeland stability, and moduli spaces
E Macrì, P Stellari - Birational Geometry of Hypersurfaces: Gargnano del …, 2019 - Springer
We survey the basic theory of non-commutative K3 surfaces, with a particular emphasis to
the ones arising from cubic fourfolds. We focus on the problem of constructing Bridgeland …
the ones arising from cubic fourfolds. We focus on the problem of constructing Bridgeland …
Intrinsic mirror symmetry and categorical crepant resolutions
D Pomerleano - arXiv preprint arXiv:2103.01200, 2021 - arxiv.org
The main result of the present paper concerns finiteness properties of Floer theoretic
invariants on affine log Calabi-Yau varieties $ X $. Namely, we show that:(a) the degree zero …
invariants on affine log Calabi-Yau varieties $ X $. Namely, we show that:(a) the degree zero …
Cohen-Macaulay differential graded modules and negative Calabi-Yau configurations
H Jin - Advances in Mathematics, 2020 - Elsevier
In this paper, we introduce the class of Cohen-Macaulay (= CM) dg (= differential graded)
modules over Gorenstein dg algebras and study their basic properties. We show that the …
modules over Gorenstein dg algebras and study their basic properties. We show that the …
Silting, cosilting, and extensions of commutative ring
We study the transfer of (co) silting objects in derived categories of module categories via
the extension functors induced by a morphism of commutative rings. It is proved that the …
the extension functors induced by a morphism of commutative rings. It is proved that the …
[HTML][HTML] Injective DG-modules over non-positive DG-rings
L Shaul - Journal of Algebra, 2018 - Elsevier
Let A be an associative non-positive differential graded ring. In this paper we make a
detailed study of a category Inj (A) of left DG-modules over A which generalizes the category …
detailed study of a category Inj (A) of left DG-modules over A which generalizes the category …
The Cohen-Macaulay property in derived commutative algebra
L Shaul - Transactions of the American Mathematical Society, 2020 - ams.org
By extending some basic results of Grothendieck and Foxby about local cohomology to
commutative DG-rings, we prove new amplitude inequalities about finite DG-modules of …
commutative DG-rings, we prove new amplitude inequalities about finite DG-modules of …