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In this short note we extend some results obtained in \cite{Gazaki2015}. First, we prove that for an abelian variety $A$ with good ordinary reduction over a finite extension of $\mathbb{Q}_p$ with $p$ an odd prime, the Albanese kernel of…

Algebraic Geometry · Mathematics 2018-11-19 Evangelia Gazaki

We demonstrate the existence of topologically stable unpaired exceptional points (EPs), and construct simple non-Hermitian (NH) tight-binding models exemplifying such remarkable nodal phases. While fermion doubling, i.e. the necessity of…

Mesoscale and Nanoscale Physics · Physics 2023-10-31 J. Lukas K. König , Kang Yang , Jan Carl Budich , Emil J. Bergholtz

We obtain necessary and sufficient conditions for abelian varieties to acquire semistable reduction over fields of low degree. Our criteria are expressed in terms of torsion points of small order defined over unramified extensions.

alg-geom · Mathematics 2016-08-30 A. Silverberg , Yu. G. Zarhin

We prove a fiberwise almost sure invariance principle for random piecewise expanding transformations in one and higher dimensions using recent developments on martingale techniques.

Dynamical Systems · Mathematics 2018-12-05 D. Dragicevic , G. Froyland , C. González-Tokman , S. Vaienti

We study function germs on toric varieties which are nondegenerate for their Newton diagram. We express their motivic Milnor fibre in terms of their Newton diagram. We extend a formula for the motivic nearby fibre to the case of a toroidal…

Algebraic Geometry · Mathematics 2013-10-28 J. H. M. Steenbrink

We show an example of a non-archimedean version of the Calabi-Yau theorem in complex geometry. Precisely, we consider totally degenerate abelian varieties and certain probability measures on their associated analytic spaces in the sense of…

Algebraic Geometry · Mathematics 2010-06-16 Yifeng Liu

There are hyperbolic 3-manifolds that fiber over the circle but that do not admit fibrations by minimal surfaces. Furthermore these manifolds do not admit fibrations by surfaces that are even approximately minimal.

Differential Geometry · Mathematics 2025-11-18 Joel Hass

We define the geometric simpleness for toroidal groups. We give an example of quasi-abelian variety which is geometrically simple, but not simple. We show that any quasi-abelian variety is isogenous to a product of geometrically simple…

Complex Variables · Mathematics 2018-09-24 Yukitaka Abe

We study and give examples of braided groupoids, and, a fortiori, non-degenerate solutions of the quiver-theoretical braid equation.

Quantum Algebra · Mathematics 2007-05-23 C. Maldonado , J. M. Mombelli

In an earlier paper, we proved the connectedness of the fibers of every $2n$-dimensional integrable system satisfying both: the action extends the action of an $(n-1)$-dimensional torus which has a proper moment map, and every tall singular…

Symplectic Geometry · Mathematics 2026-05-18 Daniele Sepe , Susan Tolman

It has been shown that the proper, non-locally finite pseudovarieties of abelian groups are not tame with respect to the canonical signature. In this paper, we show that every decidable, proper, non-locally finite pseudovariety of abelian…

Group Theory · Mathematics 2017-07-31 Khadijeh Alibabaei

We present a simpler proof for the existence of adiabatic limits. Moreover, we added a new section where the adiabatic process is reversed and in some nondegenerate cases we deform the adiabatic limits to genuine irreducible solutions of…

dg-ga · Mathematics 2008-02-03 Liviu I. Nicolaescu

Let X be an irreducible symplectic manifold and Def(X) the Kuranishi space. Assume that X admits a Lagrangian fibration. We prove that X can be deformed preserving a Lagrangian fibration. More precisely, there exists a smooth hypersurface H…

Algebraic Geometry · Mathematics 2015-06-11 Daisuke Matsushita

We show the existence of abelian surfaces $A$ over $\mathbb{Q}_p$ having good reduction with supersingular special fibre whose associated $p$-adic Galois module $V_p(A)$ is not semisimple.

Number Theory · Mathematics 2023-01-16 Maja Volkov

The isomorphism and quasi-isomorphism relations on the $p$-local torsion-free abelian groups of rank $n\geq3$ are incomparable with respect to Borel reducibility.

Logic · Mathematics 2019-08-16 Samuel Coskey

A quandle will be called quasi-affine, if it embeds into an affine quandle. Our main result is a characterization of quasi-affine quandles, by group-theoretic properties of their displacement group, by a universal algebraic condition coming…

Group Theory · Mathematics 2018-06-06 Přemysl Jedlička , Agata Pilitowska , David Stanovský , Anna Zamojska-Dzienio

We show that there exists no smooth fibration of a smooth complex quasi-projective variety of log-general type over a quasi-abelian variety. The proof uses M. Popa and C. Schnell's construction of Higgs bundle.

Algebraic Geometry · Mathematics 2017-02-21 Chuanhao Wei

In this manuscript, we investigate regularity estimates for a class of quasilinear elliptic equations in the non-divergence form that may exhibit degenerate behavior at critical points of their gradient. The prototype equation under…

Analysis of PDEs · Mathematics 2025-05-14 Junior da Silva Bessa , João Vitor da Silva

We show that a minimal ideal of a finite-dimensional Lie algebra is either simple or abelian.

Rings and Algebras · Mathematics 2020-07-10 Donald W. Barnes

Axial algebras are commutative nonassociative algebras generated by a finite set of primitive idempotents which action on an algebra is semisimple, and the fusion laws on the products between eigenvectors for these idempotents are…

Rings and Algebras · Mathematics 2025-08-20 Ilya Gorshkov , Vsevolod Gubarev