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The Chudnovsky and Chudnovsky algorithm for the multiplication in extensions of finite fields provides a bilinear complexity which is uniformly linear whith respect to the degree of the extension. Recently, Randriambololona has generalized…

Algebraic Geometry · Mathematics 2016-11-10 Stéphane Ballet , Nicolas Baudru , Alexis Bonnecaze , Mila Tukumuli

We generalize Knuth's construction of Case I semifields quadratic over a weak nucleus, also known as generalized Dickson semifields, by doubling of central simple algebras. We thus obtain division algebras of dimension $2s^2$ by doubling…

Rings and Algebras · Mathematics 2019-06-05 Daniel Thompson

We consider a singularly perturbed semilinear boundary value problem of a general form that allows various types of turning points. A solution decomposition is derived that separates the potential exponential boundary layer terms. The…

Numerical Analysis · Mathematics 2017-01-24 Simon Becher

We prove that the half plane version of the uniform infinite planar triangulation (UIPT) is recurrent. The key ingredients of the proof are a construction of a new full plane extension of the half plane UIPT, based on a natural…

Probability · Mathematics 2016-01-05 Omer Angel , Gourab Ray

We argue for more widespread use of manifold-like polyfolds (M-polyfolds) as differential geometric objects. M-polyfolds possess a distinct advantage over differentiable manifolds, enabling a smooth and local change of dimension. To…

Differential Geometry · Mathematics 2025-03-25 Per Åhag , Rafał Czyż , Håkan Samuelsson Kalm , Aron Persson

In this paper we propose a naive construction of 2-dimensional extended topological quantum field theories (TQFTs), which can be further generalized to the higher-dimension extended TQFTs.

Quantum Algebra · Mathematics 2007-05-23 Vishvajit V. S. Gautam

The aim of this paper is twofold. First we prove a theorem of extension of sections of a coherent subquotient of a hermitian vector bundle on a complex analytic space with control of the norms, without any of the smoothness assumptions that…

Number Theory · Mathematics 2007-05-23 Hugues Randriam

We investigate bicomplex analogues of fundamental notions from classical algebraic number theory. In particular, we show that the primitive element theorem admits a natural generalization to bicomplex extensions, giving rise to two distinct…

Number Theory · Mathematics 2026-02-17 Hichem Gargoubi , Sayed Kossentini

In this paper a new supersymmetric extension of conformal mechanics is put forward. The beauty of this extension is that all variables have a clear geometrical meaning and the super-Hamiltonian turns out to be the Lie-derivative of the…

High Energy Physics - Theory · Physics 2009-11-07 E. Deotto , G. Furlan , E. Gozzi

We develop a theory of split extensions of unitary magmas, which includes defining such extensions and describing them via suitably defined semidirect product, yielding an equivalence between the categories of split extensions and of…

Category Theory · Mathematics 2020-03-20 Marino Gran , George Janelidze , Manuela Sobral

We prove an extension theorem of "Ohsawa-Takegoshi type" for Dolbeault q$-classes of cohomology ($q\geq 1$) on smooth compact hypersurfaces in a weakly pseudoconvex K\"ahler manifold

Complex Variables · Mathematics 2010-06-28 Vincent Koziarz

We introduce the notion of \pi-extension of the semigroup \mathbb{Z}_+ and study the extensions of the Toeplitz algebras by isometric operators. We show that when the action of the Toeplitz algebra is irreducible all such extensions…

Operator Algebras · Mathematics 2013-02-05 T. A. Grigoryan , E. V. Lipacheva , V. H. Tepoyan

We establish a new connection between sails, a key notion in the geometric theory of generalised continued fractions, and arithmetic of totally real number fields, specifically, universal quadratic forms and additively indecomposable…

Number Theory · Mathematics 2025-02-21 Vítězslav Kala , Siu Hang Man

We develop the rudiments of a finite-dimensional representation theory of groups over idempotent semifields by considering linear actions on tropical linear spaces. This can be considered a tropical representation theory, a characteristic…

Representation Theory · Mathematics 2018-10-23 Noah Giansiracusa , Jacob Manaker

New splitting theorems in a semi-Riemannian manifold which admits an irrotational vector field (not necessarily a gradient) with some suitable properties are obtained. According to the extras hypothesis assumed on the vector field, we can…

Differential Geometry · Mathematics 2007-05-23 Manuel Gutierrez , Benjamin Olea

In this article we present a systematic derivation of the Maxwell-Bloch equations describing amplification and laser action in a ring cavity. We derive the Maxwell-Bloch equations for a two-level medium and discuss their applicability to…

Quantum Physics · Physics 2007-06-13 German J. de Valcarcel , Eugenio Roldan , F. Prati

Lisa Jeffrey and Frances Kirwan developed an integration theory for symplectic reductions. That is, given a symplectic manifold with symplectic group action, they developed a way of pulling the integration of forms on the reduction back to…

Differential Geometry · Mathematics 2007-05-23 Jonathan Munn

The coeffective differential complex on a symplectic manifold is extended both in length and in scope, unifying the constructions of various other authors.

Differential Geometry · Mathematics 2012-04-02 Michael Eastwood

After a historical discussion of classical uniformisation results for Riemann surfaces, of problems appearing in higher dimensions, and of uniformisation results for projective manifolds with trivial or ample canonical bundle, we introduce…

Algebraic Geometry · Mathematics 2019-02-22 Daniel Greb , Stefan Kebekus , Behrouz Taji

The unitary extension principle (UEP) by Ron and Shen yields conditions for the construction of a multi-generated tight wavelet frame for $L^2(\mr^s)$ based on a given refinable function. In this paper we show that the UEP can be…

Functional Analysis · Mathematics 2017-08-15 Ole Christensen , Say Song Goh