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In this work a proposal for definition of twistors on generic curved spaces is exposed and investigated. We consider superpositions of nearly autoparallel and nearly geodesic maps (nearly conformal maps, nc-maps) of (pseudo-)Riemannian…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Sergiu I. Vacaru , Sergiu V. Ostaf

We consider questions related to quantizing complex valued functions defined on a locally compact topological group. In the case of bounded functions, we generalize R. Werner's approach to prove the characterization of the associated normal…

Quantum Physics · Physics 2007-08-30 J. Kiukas , P. Lahti , K. Ylinen

In this note, a Wegner estimate for random divergence-type operators that are monotone in the randomness is proven. The proof is based on a recently shown unique continuation estimate for the gradient and the ensuing eigenvalue liftings.…

Mathematical Physics · Physics 2021-06-22 Alexander Dicke

The paper is concerned with the problem of identifying the norm attaining operators in the von Neumann algebra generated by two orthogonal projections on a Hilbert space. This algebra contains every skew projection on that Hilbert space and…

Functional Analysis · Mathematics 2021-03-11 Albrecht Böttcher , Ilya M. Spitkovsky

This paper investigates some combinatorial and algebraic properties of a Witt type formula for graphs.

Combinatorics · Mathematics 2013-03-05 G. A. T. F. da Costa

A variety of norm inequalities related to Bergman and Dirichlet spaces induced by radial weights are considered. Some of the results obtained can be considered as generalizations of certain known special cases while most of the estimates…

Complex Variables · Mathematics 2026-02-10 Fernando Pérez-González , Jouni Rättyä , Toni Vesikko

We study the (trace) norm of a linearly invariant family in the ball in $\C$. By adapting an approach that in one variable yields optimal results, we are able to derive an upper bound for the norm of the family in terms of the Schwarzian…

Complex Variables · Mathematics 2012-06-05 Martin Chuaqui , Rodrigo Hernandez

In this paper we study weighted mixed norm estimates for Riesz transforms associated to Dunkl harmonic oscillators. The idea is to show that the required inequalities are equivalent to certain vector valued inequalities for operator defined…

Functional Analysis · Mathematics 2014-07-08 Pradeep Boggarapu , S. Thangavelu

We initiate the study of the norm-squared of the momentum map as a rigorous tool in infinite dimensions. In particular, we calculate the Hessian at a critical point, show that it is positive semi-definite along the complexified orbit, and…

Differential Geometry · Mathematics 2024-05-24 Tobias Diez , Tudor S. Ratiu

Using concepts of noncommutative probability we show that the Loewner's evolution equation can be viewed as providing a map from paths of measures to paths of probability measures. We show that the fixed point of the Loewner map is the…

Probability · Mathematics 2007-05-23 Robert O. Bauer

A generalization of the generalized inverse Weibull distribution so-called transmuted generalized inverse Weibull dis- tribution is proposed and studied. We will use the quadratic rank transmutation map (QRTM) in order to generate a…

Methodology · Statistics 2013-09-16 Faton Merovci , Ibrahim Elbatal , Alaa Ahmed

We consider the overlap of Bethe vectors of the XXX spin chain with a diagonal twist and the modified Bethe vectors with a general twist. We find a determinant representation for this overlap under one additional condition on the twist…

Mathematical Physics · Physics 2021-11-03 S. Belliard , N. A. Slavnov

To approximate a simple root of an equation we construct families of iterative maps of higher order of convergence. These maps are based on model functions which can be written as an inner product. The main family of maps discussed is…

Numerical Analysis · Mathematics 2014-05-20 Mário M. Graça

We prove a simple inequality for a sum of squares of norms of two vectors in an inner product space. Next, using this inequality we derive the so--called "reverse uncertainty relation" and analyze its properties.

Quantum Physics · Physics 2026-05-28 K. Urbanowski

The aim of this short note is to extend the recent variational proof of partial regularity for optimal transport maps to the case of continuous densities.

Analysis of PDEs · Mathematics 2020-11-23 Michael Goldman

In many applications of optimal transport (OT), the object of primary interest is the optimal transport map. This map rearranges mass from one probability distribution to another in the most efficient way possible by minimizing a specified…

Statistics Theory · Mathematics 2025-06-25 Sivaraman Balakrishnan , Tudor Manole , Larry Wasserman

In this article we discuss a generalized Wirtinger inequality.

Analysis of PDEs · Mathematics 2010-05-04 Gisella Croce , Bernard Dacorogna

We consider the problem of enumeration of maps from plurifibered varieties.

Algebraic Geometry · Mathematics 2023-06-16 Yunfeng Jiang , Hsian-Hua Tseng

By disintegration of transport plans it is introduced the notion of transport class. This allows to consider the Monge problem as a particular case of the Kantorovich transport problem, once a transport class is fixed. The transport problem…

Optimization and Control · Mathematics 2012-07-18 L. Granieri , F. Maddalena

Hofer's norm (metric) is an important and interesting topic in symplectic geometry. In the present paper, we define fragmented Hofer's norms which are Hofer's norms controlled by fragmentation norms and give some observations on fragmented…

Symplectic Geometry · Mathematics 2017-03-03 Morimichi Kawasaki