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Related papers: On determinant functors and $K$-theory

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We introduce a precise notion, in terms of few Schlessinger's type conditions, of extended deformation functors which is compatible with most of recent ideas in the Derived Deformation Theory (DDT) program and with geometric examples. With…

Algebraic Geometry · Mathematics 2007-05-23 Marco Manetti

Liedtke (2008) has introduced group functors $K$ and $\tilde K$, which are used in the context of describing certain invariants for complex algebraic surfaces. He proved that these functors are connected to the theory of central extensions…

Group Theory · Mathematics 2020-07-07 Heiko Dietrich , Primoz Moravec

The bulk of this paper is devoted to the comparison of several models for the theory of (infinity,2)-categories: that is, higher categories in which all k-morphisms are invertible for k > 2 (the case of (infinity,n)-categories is also…

Category Theory · Mathematics 2009-05-08 Jacob Lurie

In this paper, we prove determinant formulas for the $K$-theory classes of the structure sheaves of degeneracy loci classes associated to vexillary permutations in type $A$. As a consequence we obtain determinant formulas for…

Algebraic Geometry · Mathematics 2017-01-03 Thomas Hudson , Tomoo Matsumura

In this article we extend evaluations of the Kauffman bracket on regular isotopy classes of knots and links to a variety of functors defined on the category of framed tangles. We show that many such functors exist, and that they correspond…

Geometric Topology · Mathematics 2007-05-23 John Armstrong

Given a regular function $\phi$ on a smooth stack, and a $(-1)$-shifted Lagrangian $M$ on the derived critical locus of $\phi$, under fairly general hypotheses, we construct a pullback map from the Grothendieck group of coherent matrix…

Algebraic Geometry · Mathematics 2025-03-11 Yalong Cao , Yukinobu Toda , Gufang Zhao

For any perfect field k a triangulated category of K-motives DK_(k) is constructed in the style of Voevodsky's construction of the category DM_(k). To each smooth k-variety X the K-motive is associated in the category DK_(k). Also, it is…

K-Theory and Homology · Mathematics 2014-02-18 Grigory Garkusha , Ivan Panin

From the irreducible decompositions' point of view, the structure of the cyclic $GL_n$-module generated by the $\alpha$-determinant degenerates when $\alpha=\pm \frac1k (1\leq k\leq n-1)$. In this paper, we show that $-\frac1k$-determinant…

Representation Theory · Mathematics 2007-11-20 Kazufumi Kimoto , Masato Wakayama

We review three examples of functors from Lorentzian categories and their applications in finiteness results, singularity theorems and boundary constructions. The third example is a novel functor from the category of ordered measure spaces…

Differential Geometry · Mathematics 2023-02-22 Olaf Müller

The main purpose of this paper is computing higher algebraic $K$-theory of Koszul complexes over principal ideal domains. The second purpose of this paper is giving examples of comparison techniques on algebraic $K$-theory for Waldhausen…

K-Theory and Homology · Mathematics 2007-05-23 Satoshi Mochizuki

Let l be a commutative ring with unit. Garkusha constructed a functor from the category of l-algebras into a triangulated category D, that is a universal excisive and homotopy invariant homology theory. Later on, he provided different…

K-Theory and Homology · Mathematics 2019-02-28 Emanuel Rodríguez Cirone

We construct differential equivariant K-theory of representable smooth orbifolds as a ring valued functor with the usual properties of a differential extension of a cohomology theory. For proper submersions (with smooth fibres) we construct…

K-Theory and Homology · Mathematics 2015-07-16 Ulrich Bunke , Thomas Schick

We investigate fundamental properties of adjoint functors to the precomposition functor in the category of strict polynomial functors.

K-Theory and Homology · Mathematics 2014-11-11 Marcin Chałupnik

Quillen's Resolution Theorem in algebraic $K$-theory provides a powerful computational tool for calculating $K$-groups of exact categories. At the level of $K_0$, this result goes back to Grothendieck. In this article, we first establish an…

K-Theory and Homology · Mathematics 2024-08-23 Yasuaki Ogawa , Amit Shah

We compare derived categories of the category of strict polynomial functors over a finite field and the category of ordinary endofunctors on the category of vector spaces. We introduce two intermediate categories: the category of…

K-Theory and Homology · Mathematics 2022-07-27 Marcin Chałupnik

We show that a well-known exact sequence in K-theory for quotients of triangulated categories descends to numerical K-groups provided that the category, the quotient and the category we take the quotient with has a numerical K-group, and if…

K-Theory and Homology · Mathematics 2024-10-28 Ádám Gyenge

To each associative unitary finite-dimensional algebra over a normal base, we associative a canonical multiplicative function called its determinant. We give various properties of this construction, as well as applications to the topology…

Algebraic Geometry · Mathematics 2007-12-13 Matthieu Romagny

In this paper we identify the ``nil-terms'' for Waldhausen's algebraic K-theory of spaces functor as the reduced K-theory of a category of equivariant spaces equipped with a homotopically nilpotent endomorphism.

K-Theory and Homology · Mathematics 2007-05-23 John R. Klein , Edward Bruce Williams

Tilting theory has been a very important tool in the classification of finite dimensional algebras of finite and tame representation type, as well as, in many other branches of mathematics. Happel [Ha] proved that generalized tilting…

Representation Theory · Mathematics 2011-10-24 R. Martínez-Villa , M. Ortiz-Morales

With the help of the tools of Quillen's homotopical algebra, we construct `the universal additive invariant', namely a functor from the category of small dg categories to an additive category, that inverts the Morita dg functors, transforms…

K-Theory and Homology · Mathematics 2007-05-23 Goncalo Tabuada