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To study a noncompact Riemannian manifold, it is often useful to find a compactification. We discuss several common compactifications and survey some recent results.

Differential Geometry · Mathematics 2010-12-15 Xiaodong Wang

Let (G,K) be a symmetric pair over the complex numbers, and let X=K\G be the corresponding symmetric space. In this paper we study a nearby cycles functor associated to a degeneration of X to MN\G, which we call the "wonderful…

Representation Theory · Mathematics 2017-05-25 Tsao-Hsien Chen , Alexander Yom Din

The canonical analysis of Proca's theory in five dimensions with a compact dimension is performed. From the Proca five dimensional action, we perform the compactification process on a S^1/\mathbf{Z_2} orbifold, then, we analyze the four…

Mathematical Physics · Physics 2014-02-14 Alberto Escalante , Carlos L. Pando Lambruschini , Prihel Cavildo

The deformation theory of Lie-Yamaguti algebras is developed by choosing a suitable cohomology. The relationship between the deformation and the obstruction of Lie-Yamaguti algebras is obtained.

Representation Theory · Mathematics 2015-05-26 Jie Lin , Liangyun Chen , Yao Ma

We give a global geometric decomposition of continuously differentiable vector fields on $\mathbb{R}^n$. More precisely, given a vector field of class $\mathcal{C}^{1}$ on $\mathbb{R}^{n}$, and a geometric structure on $\mathbb{R}^n$, we…

Dynamical Systems · Mathematics 2019-05-31 Razvan M. Tudoran

We study various compactifications of moduli space of Newton maps. Mainly, we focus on GIT compactifiaction and Deligne-Mumford compactification. Then we explore the relations among these compactifications.

Dynamical Systems · Mathematics 2018-03-23 Hongming Nie

In this paper, we proved a compactness result about Riemannian manifolds with an arbitrary pointwisely pinched Ricci curvature tensor.

Differential Geometry · Mathematics 2007-07-03 Hui-Ling Gu

We study the theta decomposition of Jacobi forms of nonintegral lattice index for a representation that arises in the theory of Weil representations associated to even lattices, and suggest possible applications.

Number Theory · Mathematics 2019-02-12 Brandon Williams

We introduce the notion of geometric pseudo-quantisation based on geometric quantisation with a weakened curvature condition. We show how such a structure arises naturally from simple deformations of the symplectic structure and pullbacks…

Mathematical Physics · Physics 2025-11-25 Kerr Maxwell

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

We give a decomposition of the jacobian variety of a generalized Fermat curve. This extends a result obtained by Auffarth, Lucchini-Arteche and Rojas on Humbert-Edge curves, which are a particular case of generalized Fermat curves. (A…

Algebraic Geometry · Mathematics 2025-11-21 Gary Martinez-Nunez

We present a deformation of the Minkowski space as embedded into the conformal space (in the formalism of twistors) based in the quantum versions of the corresponding kinematic groups. We compute explicitly the star product, whose Poisson…

High Energy Physics - Theory · Physics 2012-07-06 D. Cervantes , R. Fioresi , M. A. Lledo , F. A. Nadal

We give an elementary proof of the development of Macdonald polynomials in terms of "modified complete" and elementary symmetric functions.

Combinatorics · Mathematics 2007-05-23 Michel Lassalle

In this note we provide a full conjugacy and subdifferential calculus for convex convex-composite functions in finite-dimensional space. Our approach, based on infimal convolution and cone-convexity, is straightforward and yields the…

Optimization and Control · Mathematics 2019-08-22 James V. Burke , Tim Hoheisel , Quang V. Nguyen

For functions defined on C^n or (R_+)^n we construct a dequantization transform, which is closely related to the Maslov dequantization. The subdifferential at the origin of a dequantized polynomial coincides with its Newton polytope. For…

Mathematical Physics · Physics 2007-05-23 G. L. Litvinov , G. B. Shpiz

In this paper we study the problem of conformally deforming a metric to a prescribed symmetric function of the eigenvalues of the Schouten tensor on compact Riemannian manifolds with boundary. We prove its solvability and the compactness of…

Differential Geometry · Mathematics 2010-11-01 Yan He , Weimin Sheng

Let J be the jacobian of a reduced projective curve C with nodes only. 1) We give a simple and natural definition for its many compactifications and show the connection with various other definitions appearing in the literature. 2) Among…

alg-geom · Mathematics 2008-02-03 Valery Alexeev

We give the explicit analytic development of any Jack or Macdonald polynomial in terms of elementary (resp. modified complete) symmetric functions. These two developments are obtained by inverting the Pieri formula.

Combinatorics · Mathematics 2019-02-22 Michel Lassalle , Michael Schlosser

In this paper, we prove a functorial aspect of the formal geometric quantization procedure of non-compact spin-c manifolds.

Differential Geometry · Mathematics 2017-04-21 Paul-Emile Paradan

We study the theta divisor of the compactified jacobian of a nodal, possibly reducible, curve. We compute its irreducible components and give it a geometric interpretation consistent with the classical Brill-Noether theory of smooth curves.…

Algebraic Geometry · Mathematics 2008-10-04 Lucia Caporaso