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In this work, we present a generalization of extended persistent homology to filtrations of graded sub-groups by defining relative homology in this setting. Our work provides a more comprehensive and flexible approach to get an algebraic…

Algebraic Topology · Mathematics 2023-11-01 Fang Sun , Shengwen Xie , Xuezhi Zhao

We prove that the number of parameters defining a complex of projective modules over a finite dimensional algebra is upper semi-continuous in families of algebras. Supposing that every algebra is either derived tame or derived wild, we get…

Representation Theory · Mathematics 2007-05-23 Yuriy A. Drozd

A persistence module $M$, with coefficients in a field $\mathbb{F}$, is a finite-dimensional linear representation of an equioriented quiver of type $A_n$ or, equivalently, a graded module over the ring of polynomials $\mathbb{F}[x]$. It is…

Algebraic Topology · Mathematics 2025-11-06 Alessandro De Gregorio , Marco Guerra , Sara Scaramuccia , Francesco Vaccarino

Moduli spaces of stable sheaves on smooth projective surfaces are in general singular. Nonetheless, they carry a virtual class, which -- in analogy with the classical case of Hilbert schemes of points -- can be used to define intersection…

Algebraic Geometry · Mathematics 2025-04-09 L. Göttsche , M. Kool

In this paper, we study pointwise finite-dimensional (p.f.d.) $2$-parameter persistence modules where each module admits a finite convex isotopy subdivision. We show that a p.f.d. $2$-parameter persistence module $M$ (with a finite convex…

Algebraic Topology · Mathematics 2025-04-01 Wenwen Li , Murad Ozaydin

Recently, many authors have embraced the study of certain properties of modules such as projectivity, injectivity and flatness from an alternative point of view. This way, Durgun has introduced absolutely pure domains of modules as a mean…

Algebraic Geometry · Mathematics 2024-11-15 Soumia Mamdouhi

We define the projective stable category of a coherent scheme. It is the homotopy category of an abelian model structure on the category of unbounded chain complexes of quasi-coherent sheaves. We study the cofibrant objects of this model…

Algebraic Topology · Mathematics 2019-03-27 Sergio Estrada , James Gillespie

We give a self-contained treatment of the theory of persistence modules indexed over the real line. We give new proofs of the standard results. Persistence diagrams are constructed using measure theory. Linear algebra lemmas are simplified…

Algebraic Topology · Mathematics 2013-03-21 Frederic Chazal , Vin de Silva , Marc Glisse , Steve Oudot

The $\gamma$-linear projected barcode was recently introduced as an alternative to the well-known fibered barcode for multiparameter persistence, in which restrictions of the modules to lines are replaced by pushforwards of the modules…

Algebraic Topology · Mathematics 2024-08-05 Alex Fernandes , Steve Oudot , Francois Petit

A correspondence between quasicoherent sheaves on toric schemes and graded modules over some homogeneous coordinate ring is presented, and the behaviour of several finiteness properties under this correspondence is investigated.

Algebraic Geometry · Mathematics 2014-04-03 Fred Rohrer

We define a class of multiparameter persistence modules that arise from a one-parameter family of functions on a topological space and prove that these persistence modules are stable. We show that this construction can produce…

Algebraic Topology · Mathematics 2022-05-19 Peter Bubenik , Michael J. Catanzaro

For an exact category having enough projective objects, we establish a bijection between thick subcategories containing the projective objects and thick subcategories of the stable derived category. Using this bijection we classify thick…

Category Theory · Mathematics 2015-01-14 Henning Krause , Greg Stevenson

We introduce a new notion of persistence modules endowed with operators. It encapsulates the additional structure on Floer-type persistence modules coming from the intersection product with classes in the ambient (quantum) homology, along…

Symplectic Geometry · Mathematics 2017-03-07 Leonid Polterovich , Egor Shelukhin , Vukašin Stojisavljević

Persistence modules that decompose into interval modules are important in topological data analysis because we can interpret such intervals as the lifetime of topological features in the data. We can classify the settings in which…

Algebraic Topology · Mathematics 2025-01-03 Ángel Javier Alonso , Enhao Liu

Invariants with respect to recollements of the stable category of Gorenstein projective A-modules over an algebra A and stable equivalences are investigated. Specifically, the Gorenstein rigidity dimension is introduced. It is shown that…

Representation Theory · Mathematics 2022-09-08 Nan Gao , Chi-Heng Zhang

Persistence modules have a natural home in the setting of stratified spaces and constructible cosheaves. In this article, we first give explicit constructible cosheaves for common data-motivated persistence modules, namely, for modules that…

Algebraic Topology · Mathematics 2024-11-27 Ryan E. Grady , Anna Schenfisch

We find some equivalences of the derived category of coherent sheaves on a Gorenstein genus one curve that preserve the (semi)-stability of pure dimensional sheaves. Using them we establish new identifications between certain Simpson moduli…

We use persistence modules and their corresponding barcodes to quantitatively distinguish between different fiberwise star-shaped domains in the cotangent bundle of a fixed manifold. The distance between two fiberwise star-shaped domains is…

Symplectic Geometry · Mathematics 2019-12-16 Vukašin Stojisavljević , Jun Zhang

As a continuation of the work of Freiermuth and Trautmann, we study the geometry of the moduli space of stable sheaves on $\mathbb{P}^3$ with Hilbert polynomial $4m+1$. The moduli space has three irreducible components whose generic…

Algebraic Geometry · Mathematics 2015-06-22 Jinwon Choi , Kiryong Chung , Mario Maican

We study non-commutative projective lines over not necessarily algebraic bimodules. In particular, we give a complete description of their categories of coherent sheaves and show they are derived equivalent to certain bimodule species. This…

Representation Theory · Mathematics 2015-10-16 D. Chan , A. Nyman