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In this paper, we introduce the concept and representation of modified $\lambda$-differential Lie triple systems. Next, we define the cohomology of modified $\lambda$-differential Lie triple systems with coefficients in a suitable…

Rings and Algebras · Mathematics 2025-03-25 Wen Teng , Fengshan Long , Yu Zhang

We apply the notion of relative adjoint functor to generalise closed monoidal categories. We define representations in such categories and give their relation with left actions of monoids. The translation of these representations under lax…

Category Theory · Mathematics 2021-12-07 A. Silantyev

We initiate the study of the cohomology of (strict polynomial) bifunctors by introducing the foundational formalism, establishing numerous properties in analogy with the cohomology of functors, and providing computational techniques. Since…

K-Theory and Homology · Mathematics 2008-05-19 Vincent Franjou , Eric M. Friedlander

For any ring $A$ and a small, preadditive, Hom-finite, and locally bounded category $Q$ that has a Serre functor and satisfies the (strong) retraction property, we show that the category of additive functors from $Q$ to the category of…

Representation Theory · Mathematics 2021-01-18 Henrik Holm , Peter Jorgensen

In this article, we are concerned with the Langlands functoriality conjecture. Cogdell, Kim, Piatetski-Shapiro and Shahidi proved functioriality conjecture in the case of a globally generic cuspidal automorphic representation for the split…

Number Theory · Mathematics 2022-01-11 Héctor del Castillo

In this paper we prove that every Khovanov homology associated to a Frobenius algebra of rank $2$ can be modified in such a way as to produce a TQFT on oriented links, that is a monoidal functor from the category of cobordisms of oriented…

Algebraic Topology · Mathematics 2015-08-19 Pierre Vogel

We describe a fully faithful embedding of the category of (reflexive) globular sets into the category of counital cosymmetric $R$-coalgebras when $R$ is an integral domain. This embedding is a lift of the usual functor of $R$-chains and the…

Algebraic Topology · Mathematics 2019-08-14 A. M. Medina-Mardones

We show that Braun-Chuang-Lazarev's derived quotient prorepresents a naturally defined noncommutative derived deformation functor. Given a noncommutative partial resolution of a Gorenstein algebra, we show that the associated derived…

Algebraic Geometry · Mathematics 2018-11-29 Matt Booth

For any essentially small triangulated category the centre of its lattice of thick subcategories is introduced; it is a spatial frame and yields a notion of central support. A relative version of this centre recovers the support theory for…

Category Theory · Mathematics 2023-11-28 Henning Krause

We develop a framework relating semiorthogonal decompositions of a triangulated category $\mathcal{C}$ to paths in its space of stability conditions. We prove that when $\mathcal{C}$ is the homotopy category of a smooth and proper…

Algebraic Geometry · Mathematics 2024-03-28 Daniel Halpern-Leistner , Jeffrey Jiang , Antonios-Alexandros Robotis

We discuss an example of a triangulated Hopf category related to SL(2). It is an equivariant derived category equipped with multiplication and comultiplication functors and structure isomorphisms. We prove some coherence equations for…

Quantum Algebra · Mathematics 2009-09-25 Volodymyr Lyubashenko

In this survey, I suggest to approach the problem of functorial properties of quantum cohomology by drawing lessons from several versions of Mirror duality involving deformation spaces.

Algebraic Geometry · Mathematics 2017-08-10 Yu. I. Manin

Local cohomology functors are constructed for the category of cohomological functors on an essentially small triangulated category T equipped with an action of a commutative noetherian ring. This is used to establish a local-global…

Category Theory · Mathematics 2019-02-20 Dave Benson , Srikanth B. Iyengar , Henning Krause

The quotient of a triangulated category modulo a subcategory was defined by Verdier. Motivated by the failure of the telescope conjecture, we introduce a new type of quotients for any triangulated category which generalizes Verdier's…

Rings and Algebras · Mathematics 2007-05-23 Henning Krause

We define a supercategorification of the $q$-Schur algebra of level two and an odd analogue of $\mathfrak{gl}_2$-foams. Using these constructions, we define a homological invariant of tangles, and show that it coincides with odd Khovanov…

Geometric Topology · Mathematics 2024-03-05 Léo Schelstraete , Pedro Vaz

We develop and investigate a general theory of representations of second-order functionals, based on a notion of a right comodule for a monad on the category of containers. We show how the notion of comodule representability naturally…

Logic in Computer Science · Computer Science 2025-06-12 Danel Ahman , Andrej Bauer

Let T be a triangulated category with coproducts, C the full subcategory of compact objects in T. If T is the homotopy category of spectra, Adams proved the following in [Adams71]: All contravariant homological functors C --> Ab are the…

Algebraic Topology · Mathematics 2017-07-11 J. Daniel Christensen , Bernhard Keller , Amnon Neeman

We consider representations of tensors as sums of decomposable tensors or, equivalently, decomposition of multilinear forms into one--forms. In this short note we show that there exists a particular finite strongly orthogonal decomposition…

Numerical Analysis · Mathematics 2014-09-19 Juan Manuel Peña , Tomas Sauer

We propose a conjectural semiorthogonal decomposition for the derived category of the moduli space of stable rank 2 bundles with fixed determinant of odd degree, independently formulated by Narasimhan. We discuss some evidence for, and…

Algebraic Geometry · Mathematics 2023-03-14 Pieter Belmans , Sergey Galkin , Swarnava Mukhopadhyay

We show that single-variable polynomial functors over the category $\mathcal{S}$ of infinity groupoids, as defined by Gepner-Haugseng-Kock, are exactly colimits of representable copresheaves indexed by infinity groupoid. This allows us to…

Algebraic Topology · Mathematics 2026-02-02 Kun Chen