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Related papers: The Adams differentials on the classes $h_j^3$

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This paper develops a cohomology theory for Hom-Jacobi-Jordan algebras using and applies it to classify non-abelian extensions. The main result establishes that equivalence classes of split extensions of a Hom-Jacobi-Jordan algebra $J$ by…

Rings and Algebras · Mathematics 2026-05-05 Nejib Saadaoui

We introduce characteristic classes for the spectral sequence associated to a split short exact sequence of Hopf algebras. We show that these characteristic classes can be seen as obstructions for the vanishing of differentials in the…

Algebraic Topology · Mathematics 2011-03-10 Dieter Degrijse , Nansen Petrosyan

We discover a host of infinite periodic families in the 2-primary stable homotopy groups of spheres. We also confirm the existence of many families predicted by Hopkins--Mahowald. These families appear in nineteen different congruence…

Algebraic Topology · Mathematics 2025-09-08 Christian Carrick , Jack Morgan Davies

Let M to B, N to B be fibrations and f1,f2 :M to N be a pair of fibre-preserving maps. Using normal bordism techniques we define an invariant which is an obstruction to deforming the pair f1,f2 over B to a coincidence free pair of maps.In…

Algebraic Topology · Mathematics 2013-05-09 Daciberg L. Gonçalves , Ulrich Koschorke

We compute the h_1-localized cohomology of the motivic Steenrod algebra over C. This serves as the input to an Adams spectral sequence that computes the motivic stable homotopy groups of the eta-local motivic sphere. We compute some of the…

Algebraic Topology · Mathematics 2014-07-01 Bertrand J. Guillou , Daniel C. Isaksen

Some scales of spaces of ultra-differentiable functions are introduced, having good stability properties with respect to infinitely many derivatives and compositions. They are well-suited for solving non-linear functional equations by means…

Dynamical Systems · Mathematics 2017-10-04 Abed Bounemoura , Jacques Féjoz

We study the foundational properties of persistent homotopy groups and develop elementary computational methods for their analysis. Our main theorems are persistent analogues of the Van Kampen, excision, suspension, and Hurewicz theorems.…

Algebraic Topology · Mathematics 2025-10-23 Henry Adams , Mehmet Ali Batan , Mehmetcik Pamuk , Hanife Varli

Let X be a closed m-dimensional spin manifold which admits a metric of positive scalar curvature and let Pos(X) be the space of all such metrics. For any g in Pos(X), Hitchin used the KO-valued alpha-invariant to define a homomorphism…

Geometric Topology · Mathematics 2014-11-11 Diarmuid Crowley , Thomas Schick

We obtain a large class of new 4d Argyres-Douglas theories by classifying irregular punctures for the 6d (2,0) superconformal theory of ADE type on a sphere. Along the way, we identify the connection between the Hitchin system and…

High Energy Physics - Theory · Physics 2016-12-21 Yifan Wang , Dan Xie

We develop a regularity theory for integro-differential equations with kernels deforming in space like sections of a convex solution of a Monge-Amp\`{e}re equation. We prove an ABP estimate and a Harnack inequality and derive H\"{o}lder and…

Analysis of PDEs · Mathematics 2020-03-03 Luis Caffarelli , Rafayel Teymurazyan , José Miguel Urbano

We study the diagrammatic Hecke category associated with the affine Weyl group of type $\tilde{A}_2$. More precisely we find a (surprisingly simple) basis for the Hom spaces between indecomposable objects, that we call indecomposable double…

Representation Theory · Mathematics 2021-04-26 Nicolas Libedinsky , Leonardo Patimo

We study a Hopf algebroid, $\calh$, naturally associated to the groupoid $U_n^\delta\ltimes U_n$. We show that classes in the Hopf cyclic cohomology of $\calh$ can be used to define secondary characteristic classes of trivialized flat…

K-Theory and Homology · Mathematics 2007-12-04 Jerome Kaminker , Xiang Tang

An infinite class of analytic AdS_7 x S^3 solutions has recently been found. The S^3 is distorted into a "crescent roll" shape by the presence of D8-branes. These solutions are conjectured to be dual to a class of "linear quivers", with a…

High Energy Physics - Theory · Physics 2016-09-29 Stefano Cremonesi , Alessandro Tomasiello

We propose global surjectivity theorems of differentiable maps based on second order conditions. Using the homotopy continuation method, we demonstrate that, for a $C^2$ differentiable map from a Hilbert space to a finite-dimensional…

Classical Analysis and ODEs · Mathematics 2025-10-14 Yacine Chitour , Zhengping Ji , Emmanuel Trélat

We study a class of 2-dimensional Hamiltonian systems $H(x,y,p_x,p_y)=\frac12(p_x^2+p_y^2) +V(x,y)$ in which the plane $x$=$p_x$=0 is invariant under the Hamiltonian flow, so that straight-line librations along the y axis exist, and we also…

Symplectic Geometry · Mathematics 2007-10-22 Klaus Jaenich

Bifurcations of the $A_{n}$ type in Arnold's classification, in non-autonomous $p$-periodic difference equations generated by parameter depending families with $p$ maps, are studied. It is proved that the conditions of degeneracy,…

Dynamical Systems · Mathematics 2015-03-06 Henrique Manuel Oliveira

We give a family of slice-torus invariants $\tilde{ss}_c$, each defined from the $c$-divisibility of the reduced Lee class in a variant of reduced Khovanov homology, parameterized by prime elements $c$ in any principal ideal domain $R$. For…

Geometric Topology · Mathematics 2025-10-08 Taketo Sano , Kouki Sato

This paper is mainly concerned with the existence of extremals for the Adams inequality. We first establish an upper bound for the classical Adams functional along of all concentrated sequences in $W^{m,\frac{n}{m}}_{\mathcal{N}}(\Omega)$,…

Analysis of PDEs · Mathematics 2022-07-26 José Francisco Alves de Oliveira , Abiel Costa Macedo

In this paper we construct new derived invariants with integral coefficients using the theory of motifs, and give several applications. Specifically, we obtain the following results: For complex algebraic surfaces, we prove that certain…

Algebraic Geometry · Mathematics 2023-01-12 Keiho Matsumoto

Kontsevich conjectured that $\text{BDiff}(M, \text{rel }\partial)$ has the homotopy type of a finite CW complex for all compact $3$-manifolds with non-empty boundary. Hatcher-McCullough proved this conjecture when $M$ is irreducible. We…

Geometric Topology · Mathematics 2025-04-30 Sam Nariman