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This thesis deals with deformations of VB-algebroids and VB-groupoids. They can be considered as vector bundles in the categories of Lie algebroids and groupoids and encompass several classical objects, including Lie algebra and Lie group…

Differential Geometry · Mathematics 2020-01-22 Pier Paolo La Pastina

This is the second part of a series of two papers dedicated to a systematic study of holomorphic Jacobi structures. In the first part, we introduced and study the concept of a holomorphic Jacobi manifold in a very natural way as well as…

Differential Geometry · Mathematics 2019-06-20 Luca Vitagliano , Aïssa Wade

Many interesting C*-algebras can be viewed as quantizations of Poisson manifolds. I propose that a Poisson manifold may be quantized by a twisted polarized convolution C*-algebra of a symplectic groupoid. Toward this end, I define…

Symplectic Geometry · Mathematics 2007-09-18 Eli Hawkins

We establish an algebra-isomorphism between the complexified Grothendieck ring F of certain bimodule categories over a modular tensor category and the endomorphism algebra of appropriate morphism spaces of those bimodule categories. This…

Category Theory · Mathematics 2009-02-24 Jurgen Fuchs , Ingo Runkel , Christoph Schweigert

This paper is about the role of Planck's constant, $\hbar$, in the geometric quantization of Poisson manifolds using symplectic groupoids. In order to construct a strict deformation quantization of a given Poisson manifold, one can use all…

Symplectic Geometry · Mathematics 2016-06-22 Eli Hawkins

This paper investigates the geometric and algebraic interplay between F-manifolds and a newly defined class of structures termed F$_\text{man}$-algebras. We specialize our study to the category of F-Lie groups, characterized by a Lie group…

Differential Geometry · Mathematics 2026-02-03 Santiago Castañeda-Montoya , Alexander Torres-Gomez

In this work, we show that the periodic defocusing Ablowitz-Ladik equation can be expressed as an isospectral deformation of Floquet CMV matrices. We then introduce a Poisson Lie group whose underlying group is a loop group and show that…

Mathematical Physics · Physics 2011-03-24 Luen-Chau Li , Irina Nenciu

VB-groupoids are vector bundles in the category of Lie groupoids. They encompass several classical objects, including Lie group representations and 2-vector spaces. Moreover, they provide geometric pictures for 2-term representations up to…

Differential Geometry · Mathematics 2019-07-15 Pier Paolo La Pastina , Luca Vitagliano

The purpose of this paper is to propose a version of the notion of convenient Lie groupoid as a generalization of this concept in finite dimension. The authors point out which obstructions appear in the infinite dimensional context and how…

Differential Geometry · Mathematics 2025-10-15 Fernand Pelletier , Patrick Cabau

The moduli space of cubic threefolds in CP4, with some minor birational modifications, is the Baily-Borel compactification of the quotient of the complex 10-ball by a discrete group. We describe both the birational modifications and the…

Algebraic Geometry · Mathematics 2007-05-23 Daniel Allcock , James A. Carlson , Domingo Toledo

We describe bivector fields and Poisson structures on local Calabi-Yau threefolds which are total spaces of vector bundles on a contractible rational curve. In particular, we calculate all possible holomorphic Poisson structures on the…

Algebraic Geometry · Mathematics 2024-01-09 Edoardo Ballico , Elizabeth Gasparim , Thomas Köppe , Bruno Suzuki

Symplectic and Poisson structures of certain moduli spaces/Huebschmann,J./ Abstract: Let $\pi$ be the fundamental group of a closed surface and $G$ a Lie group with a biinvariant metric, not necessarily positive definite. It is shown that a…

High Energy Physics - Theory · Physics 2008-02-03 Johannes Huebschmann

This article explains basic constructions and results on group algebras and their cohomology, starting from the point of view of commutative algebra. It provides the background necessary for a novice in this subject to begin reading Dave…

Commutative Algebra · Mathematics 2007-05-23 Srikanth Iyengar

We define and make initial study of Lie groupoids equipped with a compatible homogeneity (or graded bundle) structure, such objects we will refer to as weighted Lie groupoids. One can think of weighted Lie groupoids as graded manifolds in…

Differential Geometry · Mathematics 2015-11-12 Andrew James Bruce , Katarzyna Grabowska , Janusz Grabowski

We collect here some less well-known results and formulae about the bosonisation construction which turns braided groups into quantum groups. We clarify the relation with biproduct Hopf algebras (the constructions are not the same), the…

q-alg · Mathematics 2008-02-03 S. Majid

We address the question of duality for the dynamical Poisson groupoids of Etingof and Varchenko over a contractible base. We also give an explicit description for the coboundary case associated with the solutions of the classical dynamical…

Differential Geometry · Mathematics 2007-05-23 Luen-Chau Li , Serge Parmentier

A Bott manifold is a smooth projective toric variety having an iterated $\mathbb{C} P^1$-bundle structure. A certain family of Bott manifolds is used to understand the structure of Bott--Samelson varieties (or…

Algebraic Geometry · Mathematics 2025-11-13 Junho Jeong , Jang Soo Kim , Eunjeong Lee

After a brief summary of the main properties of Poisson manifolds and Lie algebroids in general, we survey recent work on the modular classes of Poisson and twisted Poisson manifolds, of Lie algebroids with a Poisson or twisted Poisson…

Symplectic Geometry · Mathematics 2012-12-05 Yvette Kosmann-Schwarzbach

We apply gauge theory to study the space $F_k(M)$ of smooth codimension-$k$ framed foliations on a smooth manifold $M$. The quotient of Maurer-Cartan elements by the action of an infinite dimensional non-abelian gauge groupoid forms a…

Differential Geometry · Mathematics 2018-01-10 Mehrzad Ajoodanian , Eaman Eftekhary

The definition of the complement of a fuzzy subset is algebraic in nature and when it is used in the context of fuzzy topological spaces it does not share any similarity with the usual property of topological spaces that the complement of…

General Topology · Mathematics 2025-08-25 Anjeza Krakulli , Elton Pasku