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This paper addresses the study of novel constructions of variational analysis and generalized differentiation that are appropriate for characterizing robust stability properties of constrained set-valued mappings/multifunctions between…

最优化与控制 · 数学 2024-01-11 Boris S. Mordukhovich , Pengcheng Wu , Xiaoqi Yang

The paper presents methods of eigenvalue localisation of regular matrix polynomials, in particular, stability of matrix polynomials is investigated. For this aim a stronger notion of hyperstability is introduced and widely discussed. Matrix…

复变函数 · 数学 2022-05-18 Oskar Jakub Szymański , Michał Wojtylak

This paper investigates the representation-theoretic structure of the Koszul cohomology of a smooth projective variety $X$ over an algebraically closed field $k$, admitting an action of a finite group $G$ of order coprime to ${\rm…

An important combinatorial result in equivariant cohomology and $K$-theory Schubert calculus is represented by the formulas of Billey and Graham-Willems for the localization of Schubert classes at torus fixed points. These formulas work…

代数几何 · 数学 2017-11-01 Cristian Lenart , Kirill Zainoulline

In 1980, I. Morrison proved that slope stability of a vector bundle of rank 2 over a compact Riemann surface implies Chow stability of the projectivization of the bundle with respect to certain polarizations. We generalized Morrison's…

微分几何 · 数学 2010-12-02 Reza Seyyedali

For a locally compact group $G$ and a strongly self-absorbing $G$-algebra $(\mathcal{D},\delta)$, we obtain a new characterization of absorption of a strongly self-absorbing action using almost equivariant completely positive maps into the…

算子代数 · 数学 2021-06-14 Marzieh Forough , Eusebio Gardella

We introduce a version of algebraic $K$-theory for coefficient systems of rings which is valued in genuine $G$-spectra for a finite group $G$. We use this construction to build a genuine $G$-spectrum $K_G(\mathbb{Z}[\underline{\pi_1(X)}])$…

代数拓扑 · 数学 2026-02-02 Maxine Calle , David Chan , Andres Mejia

This paper shows that the integral equivariant cohomology Chern numbers completely determine the equivariant geometric unitary bordism classes of closed unitary $G$-manifolds, which gives an affirmative answer to the conjecture posed by…

代数拓扑 · 数学 2019-03-19 Zhi Lü , Wei Wang

In this paper we compute the Futaki invariant of adiabatic Kaehler classes on resolutions of Kaehler orbifolds with isolated singularities. Combined with previous existence results of extremal metrics by Arezzo-Lena-Mazzieri, this gives a…

微分几何 · 数学 2018-08-28 Claudio Arezzo , Alberto Della Vedova , Lorenzo Mazzieri

We present group equivariant capsule networks, a framework to introduce guaranteed equivariance and invariance properties to the capsule network idea. Our work can be divided into two contributions. First, we present a generic routing by…

计算机视觉与模式识别 · 计算机科学 2018-10-25 Jan Eric Lenssen , Matthias Fey , Pascal Libuschewski

We give sufficient conditions for the existence of Kaehler-Einstein and constant scalar curvature Kaehler (cscK) metrics on finite ramified Galois coverings of a cscK manifold in terms of cohomological conditions on the Kaehler classes and…

微分几何 · 数学 2021-10-05 Claudio Arezzo , Alberto Della Vedova , Yalong Shi

This is a review/announcement of results concerning the connection between certain exactly solvable two-dimensional models of statistical mechanics, namely loop models, and the equivariant $K$-theory of the cotangent bundle of the…

代数几何 · 数学 2018-07-16 Paul Zinn-Justin

We characterize covariant positive decomposable maps between unital C*-algebras in terms of a dilation theorem, which generalizes a seminal result by H. Scutaru from Rep. Math. Phys. 16 (1):79-87, 1979. As a case study, we provide a certain…

算子代数 · 数学 2025-12-08 Krzysztof Szczygielski

We prove that the factorization homologies of a scheme with coefficients in truncated polynomial algebras compute the cohomologies of its generalized configuration spaces. Using Koszul duality between commutative algebras and Lie algebras,…

代数几何 · 数学 2021-05-12 Quoc P. Ho

Equivariant homotopy methods developed over the last 20 years lead to recent breakthroughs in the Borel isomorphism conjectures for Loday assembly maps in K- and L-theories. An important consequence of these algebraic conjectures is the…

代数拓扑 · 数学 2019-06-25 Gunnar Carlsson , Boris Goldfarb

In this article, we construct generalized harmonic univalent mappings and find its coefficients bounds. We present the counterexample to validate the coefficient conjecture proposed by Clunie and Sheil-Small for the class of functions…

复变函数 · 数学 2026-02-17 Omendra Mishra , Asena Çetinkaya

We introduce a $\mathbb{C}/\mathbb{Z}$-valued invariant of a foliated manifold with a stable framing and with a partially flat vector bundle. This invariant can be expressed in terms of integration in differential $K$-theory, or…

K理论与同调 · 数学 2018-06-25 Ulrich Bunke

We introduce a bivariant version of the Cuntz semigroup as equivalence classes of order zero maps generalizing the ordinary Cuntz semigroup. The theory has many properties formally analogous to KK-theory including a composition product. We…

算子代数 · 数学 2016-02-08 Joan Bosa , Gabriele Tornetta , Joachim Zacharias

Equivariant quantization is a new theory that highlights the role of symmetries in the relationship between classical and quantum dynamical systems. These symmetries are also one of the reasons for the recent interest in quantization of…

微分几何 · 数学 2015-05-18 N. Poncin , F. Radoux , R. Wolak

The construction of topological index maps for equivariant families of Dirac operators requires factoring a general smooth map through maps of a very simple type: zero sections of vector bundles, open embeddings, and vector bundle…

K理论与同调 · 数学 2012-06-29 Ralf Meyer , Heath Emerson