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We consider two non-degenerate potentials for the quiver arising from the once-punctured torus, which are a natural choice to study and compare: the first is the Labardini-potential, yielding a finite-dimensional Jacobian algebra, whereas…

Representation Theory · Mathematics 2014-06-17 Charlotte Ricke

For an algebraic variety $X$ of dimension $d$ with totally degenerate reduction over a $p$-adic field (definition recalled below) and an integer $i$ with $1\leq i\leq d$, we define a rigid analytic torus $J^i(X)$ together with an…

Number Theory · Mathematics 2007-05-23 Wayne Raskind , Xavier Xarles

Our approach to higher order Fourier analysis is to study the ultra product of finite (or compact) Abelian groups on which a new algebraic theory appears. This theory has consequences on finite (or compact) groups usually in the form of…

Combinatorics · Mathematics 2009-11-09 Balazs Szegedy

In this paper, we give a survey of a geometrical theory of Jacobi forms of higher degree. And we present some geometric results and discuss some geometric problems to be investigated in the future.

Number Theory · Mathematics 2007-05-23 Jae-Hyun Yang

Let A be a principally polarized abelian threefold over a perfect field k, not isomorphic to a product over the algebraic closure of k. There exists a canonical extension k' of k, of degree 1 or 2, such that A becomes isomorphic to a…

Algebraic Geometry · Mathematics 2010-05-21 Arnaud Beauville , Christophe Ritzenthaler

We study projective models of generalized Kummer fourfolds via O'Grady's theta groups and the classical Coble cubic. More precisely, we establish a duality between two singular models of the generalized Kummer fourfold of a Jacobian abelian…

Algebraic Geometry · Mathematics 2025-05-28 Daniele Agostini , Pietro Beri , Franco Giovenzana , Ángel David Ríos Ortiz

Jacobi forms can be considered as vector valued modular forms, and Jacobi forms of critical weight correspond to vector valued modular forms of weight $\frac12$. Since the only modular forms of weight $\frac12$ on congruence subgroups of…

Number Theory · Mathematics 2007-07-06 Nils-Peter Skoruppa

Our goal in this note is to give a number of examples of abelian varieties over function fields k(t) which have bounded ranks in towers of extensions such as k(t^{1/d}) for varying d. Along the way we prove some new results on Fermat curves…

Number Theory · Mathematics 2007-05-23 Douglas Ulmer

We use the supergeometric formalism, more precisely, the so-called "big bracket" (for which brackets and anchors are encoded by functions on some graded symplectic manifold) to address the theory of Jacobi algebroids and bialgebroids…

Differential Geometry · Mathematics 2010-12-14 Paulo dos Santos Antunes , Camille Laurent-Gengoux

The most general Jacobi brackets in $\mathbb{R}^3$ are constructed after solving the equations imposed by the Jacobi identity. Two classes of Jacobi brackets were identified, according to the rank of the Jacobi structures. The associated…

Mathematical Physics · Physics 2009-11-11 F. Haas

This paper is the second in a series of two papers which study the phenomenon of tropical split Jacobians. The first paper is a contemplative study, embedded in the broader context of exploring connections between the category of tropical…

Algebraic Geometry · Mathematics 2025-02-11 Lou-Jean Leila Cobigo

We study the proportion of metric matroids whose Jacobians have nontrivial $p$-torsion. We establish a correspondence between these Jacobians and the $\mathbb{F}_p$-rational points on configuration hypersurfaces, thereby relating their…

Combinatorics · Mathematics 2025-06-17 Sergio Ricardo Zapata Ceballos

We give a construction of homotopy algebras based on ``higher derived brackets''. More precisely, the data include a Lie superalgebra with a projector on an Abelian subalgebra satisfying a certain axiom, and an odd element $\Delta$. Given…

Quantum Algebra · Mathematics 2019-01-08 Theodore Voronov

We illustrate how Jordan algebras can provide a framework for the interpretation of certain classes of orthogonal polynomials. The big -1 Jacobi polynomials are eigenfunctions of a first order operator of Dunkl type. We consider an algebra…

Classical Analysis and ODEs · Mathematics 2015-05-30 Satoshi Tsujimoto , Luc Vinet , Alexei Zhedanov

We explain some recent developments in the theory of Neron models for families of Jacobians associated to variations of Hodge structures of weight -1.

Algebraic Geometry · Mathematics 2009-11-20 Morihiko Saito

In this paper, we introduce the notion of Jacobi Novikov-Poisson algebras and demonstrate that their affinization yields Jacobi algebras. We note that every unital differential Novikov-Poisson algebra is also a Jacobi Novikov-Poisson…

Rings and Algebras · Mathematics 2026-02-16 Chengyang Lu , Yanyong Hong

Weighted Rota-Baxter Jacobi-Jordan algebras and their representations are studied. Moreover, we consider weighted Rota-Baxter paired operators that are related to weighted Rota-Baxter Jacobi-Jordan algebras together with their…

Rings and Algebras · Mathematics 2025-08-14 Jules Anitchéou , Sylvain Attan

We prove the integral Hodge conjecture for one-cycles on a principally polarized complex abelian variety whose minimal class is algebraic. In particular, any product of Jacobians of smooth projective curves over the complex numbers…

Algebraic Geometry · Mathematics 2023-02-09 Thorsten Beckmann , Olivier de Gaay Fortman

We study the Jacobian Poisson structures in any dimension invariant with respect to the discrete Heisenberg group. The classification problem is related to the discrete volume of suitable solids. Particular attention is given to dimension 3…

Mathematical Physics · Physics 2011-03-23 Giovanni Ortenzi , Vladimir Rubtsov , Serge Roméo Tagne Pelap

We study $2$-representation finite $\mathbb{K}$-algebras obtained from tensor products of tensor algebras of species. In earlier work we computed the higher preprojective algebra of said algebras to be given as Jacobian algebras of certain…

Representation Theory · Mathematics 2025-10-07 Christoffer Söderberg