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Related papers: An algebraic proof of K-semistability of the proje…

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By analogy with algebraic geometry, we define a category of non-linear sheaves (quasi-coherent homotopy-sheaves of topological spaces) on projective toric varieties and prove a splitting result for its algebraic K-theory, generalising…

K-Theory and Homology · Mathematics 2010-07-30 Thomas Huettemann

We show that Hilbert schemes for quantum planes are projective.

Rings and Algebras · Mathematics 2008-09-22 Daniel Chan

It is proved that classifiable simple separable nuclear purely infinite C*-algebras having finitely generated K-theory and torsion-free K_1 are semiprojective. This is accomplished by exhibiting these algebras as C*-algebras of infinite…

Operator Algebras · Mathematics 2007-05-23 Jack Spielberg

We prove a second main theorem for elliptic projective planes.

Complex Variables · Mathematics 2019-02-12 Julien Duval

We prove a hyperplane inequality for the surface area of projection bodies.

Metric Geometry · Mathematics 2012-04-27 Alexander Koldobsky

Using toric geometry we prove a B\'ezout type theorem for weighted projective spaces.

Algebraic Geometry · Mathematics 2016-04-11 Bernt Ivar Utstøl Nødland

We show that a Kirchberg algebra is semiprojective if and only if it is KK-semiprojective. In particular, this shows that a Kirchberg algebra in the UCT-class is semiprojective if and only if its K-theory is finitely generated, thereby…

Operator Algebras · Mathematics 2015-07-23 Dominic Enders

In this paper, we study the K-theory on higher modules in spectral algebraic geometry. We relate the K-theory of an $\infty$-category of finitely generated projective modules on certain $\mathbb{E}_{\infty}$-rings with the K-theory of an…

K-Theory and Homology · Mathematics 2016-08-08 Mariko Ohara

Algebraic K-theory is the stable homotopy theory of homotopy theories, and it interacts with algebraic structures accordingly. In particular, we prove the Deligne Conjecture for algebraic K-theory.

K-Theory and Homology · Mathematics 2014-07-17 C. Barwick

Let G be a finite group and let k be a field. We say that G is a projective basis of a k-algebra A if it is isomorphic to a twisted group algebra k^\alpha G for some class \alpha in H^2(G,k^\times), where the action of G on k^\times is…

Rings and Algebras · Mathematics 2011-06-02 Michael Natapov

K-polystability of a polarised variety is an algebro-geometric notion conjecturally equivalent to the existence of a constant scalar curvature K\"ahler metric. When a variety is K-unstable, it is expected to admit a "most destabilising"…

Algebraic Geometry · Mathematics 2020-04-01 Ruadhaí Dervan

We prove the convergence of geodesic distance during the quantization of the space of K\"ahler potentials. As applications, this provides alternative proofs of certain inequalities about the K-energy functional in the projective case.

Differential Geometry · Mathematics 2010-04-13 Xiuxiong Chen , Song Sun

We study a variant of algebraic K-theory and prove that it is stable and preserves module structures.

Category Theory · Mathematics 2016-05-27 Sanath Devalapurkar

We prove a generalization of a result of Peres and Schlag on the dimensions of certain exceptional sets of projections and then apply it to a geometric problem.

Classical Analysis and ODEs · Mathematics 2011-07-26 Daniel M. Oberlin

A Laurent polynomial ring $A[t,1/t]$ with coefficients in a unital ring $A$ determines a category of quasi-coherent sheaves on the projective line over $A$; its $K$-theory is known to split into a direct sum of two copies of the $K$-theory…

K-Theory and Homology · Mathematics 2026-05-21 Thomas Huettemann , Tasha Montgomery

In previous papers it was shown that the left and right O-module structure of the jet bundles on the projective line differed. In this paper we show that similar statements hold for jet bundles on projective space in any dimension. We also…

Algebraic Geometry · Mathematics 2020-11-13 Helge Øystein Maakestad

Let k be a perfect field and let K/k be a finite extension of fields. An arithmetic noncommutative projective line is a noncommutative space equal to the projectivization of the noncommutative symmetric algebra of a k-central two -sided…

Quantum Algebra · Mathematics 2014-05-30 Adam Nyman

We review some recent results on $K$-theory of perfection of commutative $\mF_p$-algebras and provide an alternative proof.

K-Theory and Homology · Mathematics 2023-04-05 Kevin Coulembier

In this paper, we propose a geometrical proof of the generalized mirror transformation of genus 0 Gromov-Witten invariants of degree k hypersurface in CP^{N-1}.

Algebraic Geometry · Mathematics 2024-01-09 Masao Jinzenji

Suppose X is a projective toric scheme defined over a commutative ring R equipped with an ample line bundle L. We prove that its K-theory has k+1 direct summands K(R) where k is minimal among non-negative integers such that the twisted line…

K-Theory and Homology · Mathematics 2014-10-17 Thomas Huettemann
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