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A general non-commutative quantum mechanical system in a central potential $V=V(r)$ in two dimensions is considered. The spectrum is bounded from below and for large values of the anticommutative parameter $\theta $, we find an explicit…

High Energy Physics - Theory · Physics 2009-10-31 J. Gamboa , M. Loewe , J. C. Rojas

We consider the consistent deformation of the relativistic quantum mechanics introducing the noncommutativity of the space-time and preserving the Lorentz symmetry. The relativistic wave equation describing the spinning particle on…

High Energy Physics - Theory · Physics 2014-04-21 V. G. Kupriyanov

Noncommuting spatial coordinates and fields can be realized in actual physical situations. Plane wave solutions to noncommuting photodynamics exhibit violaton of Lorentz invariance (special relativity).

High Energy Physics - Theory · Physics 2009-11-07 R. Jackiw

We give a counterexample to a recently conjectured variant of the Penrose inequality.

Differential Geometry · Mathematics 2026-04-30 Sven Hirsch , Yipeng Wang

Using the ideas of Deninger, we prove that the Artin $L$-functions coincide with such of the noncommutative tori. This result can be viewed as the Langlands reciprocity for noncommutative tori.

Number Theory · Mathematics 2024-01-01 Igor V. Nikolaev

Although the explicit commutativitiy conditions for second-order linear time-varying systems have been appeared in some literature, these are all for initially relaxed systems. This paper presents explicit necessary and sufficient…

Systems and Control · Computer Science 2020-08-13 Mehmet Emir Koksal

We provide an alternative proof of a (local) T1 theorem for dual exponents in the non-homogeneous setting of upper doubling measures. This previously known theorem provides necessary and sufficient conditions for the L^p-boundedness of…

Classical Analysis and ODEs · Mathematics 2013-03-14 Michael T. Lacey , Antti V. Vähäkangas

We introduce two families of non-commutative symmetric functions that have analogous properties to the Hall-Littlewood and Macdonald symmetric functions.

Combinatorics · Mathematics 2016-11-08 Nantel Bergeron , Mike Zabrocki

We study a special class of non-convex functions which appear in nonlinear elasticity; and we prove that they have well-defined Legandre transforms. Several examples are given, and an application to a nonlinear eigenvalue problem

Optimization and Control · Mathematics 2007-05-23 Ivar Ekeland

In this contribution we discuss the Noncommutative Standard Model and the associated Standard Model-forbidden decays that can possibly serve as an experimental signature of space-time noncommutativity.

High Energy Physics - Phenomenology · Physics 2015-06-25 Peter Schupp , Josip Trampetic

This semi-expository paper surveys results concerning three classes of orthogonal polynomials: in one non-hermitian variable, in several isometric non-commuting variables, and in several hermitian non-commuting variables. The emphasis is on…

Functional Analysis · Mathematics 2007-05-23 T. Banks , T. Constantinescu , J. L. Johnson

In this note I provide two extensions of a particular case of the classical Poncelet theorem.

Algebraic Geometry · Mathematics 2020-10-07 Ciro Ciliberto

We prove a necessary optimality condition of Euler-Lagrange type for fractional variational problems with derivatives of incommensurate variable order. This allows us to state a version of Noether's theorem without transformation of the…

Optimization and Control · Mathematics 2013-10-14 Tatiana Odzijewicz , Agnieszka B. Malinowska , Delfim F. M. Torres

We establish a noncommutative Blackwell--Ross inequality for supermartingales under a suitable condition which generalize Khan's works to the noncommutative setting. We then employ it to deduce an Azuma-type inequality.

Operator Algebras · Mathematics 2021-07-23 Ali Talebi , Mohammad Sal Moslehian , Ghadir Sadeghi

We argue that there should exist a "noncommutative Fourier transform" which should identify functions of noncommutative variables (say, of matrices of indeterminate size) and ordinary functions or measures on the space of paths. Some…

Quantum Algebra · Mathematics 2007-05-23 M. Kapranov

We present the second-order expression for the observed redshift, accounting for all the relativistic effects from the light propagation and from the frame change at the observer and the source positions. We derive the generic…

General Relativity and Quantum Cosmology · Physics 2018-09-26 Giuseppe Fanizza , Jaiyul Yoo , Sang Gyu Biern

We give counterexamples to Okounkov's log-concavity conjecture for Littlewood-Richardson coefficients.

Representation Theory · Mathematics 2007-05-23 Calin Chindris , Harm Derksen , Jerzy Weyman

We studies the Newton polygon for the L-function of toric exponential sums attached to a family of two variable generalized hyperkloosterman sum,$f_{t}(x,y)=x^{n}+y+\frac{t}{xy}$ with $t$ the parameter. The explicit Newton polygon is…

Number Theory · Mathematics 2024-11-18 Bolun Wei

Short nonstandard proofs are given for some results about infinite systems of equations in infinitely many variables.

Logic · Mathematics 2024-05-09 David A. Ross

In this paper, we present an extensive study of linearly forced isotropic turbulence. By using an analytical method, we identified two parametric choices that are new to our knowledge. We proved that the underlying nonlinear dynamical…

Fluid Dynamics · Physics 2013-01-23 Zheng Ran