Results 41 to 50 of about 12,426,629 (301)

Isodiametric sets in the Heisenberg group [PDF]

open access: yesRevista Matemática Iberoamericana, 2012
In the sub-Riemannian Heisenberg group equipped with its Carnot–Carathéodory metric and with a Haar measure, we consider isodiametric sets , i.e., sets maximizing measure among all sets with a given diameter. In particular, given an isodiametric set, and up to negligible sets, we prove that its boundary is given by
LEONARDI, Gian Paolo   +2 more
openaire   +5 more sources

A pseudo-differential calculus on the Heisenberg group [PDF]

open access: yes, 2014
In this note we present a symbolic pseudo-differential calculus on the Heisenberg group. We particularise to this group our general construction [4,3,2] of pseudo-differential calculi on graded groups.
Fischer, Veronique, Ruzhansky, Michael
core   +4 more sources

Critical Kirchhoff equations involving the -sub-Laplacians operators on the Heisenberg group

open access: yesBulletin of Mathematical Sciences, 2023
In this paper, we deal with a class of Kirchhoff-type critical elliptic equations involving the [Formula: see text]-sub-Laplacians operators on the Heisenberg group of the form M(∥DHu∥pp + ∥u∥ p,Vp)[−Δ H,pu + V (ξ)|u|p−2u] = λf(ξ,u) + |u|p∗−2u,ξ ∈ ℍn,u ...
Xueqi Sun   +3 more
doaj   +1 more source

Semmes surfaces and intrinsic Lipschitz graphs in the Heisenberg group [PDF]

open access: yesTransactions of the American Mathematical Society, 2018
A Semmes surface in the Heisenberg group is a closed set S S that is upper Ahlfors-regular with codimension one and satisfies the following condition, referred to as Condition B. Every ball B ( x , r ) B(x,r) with x ∈
Katrin Fassler   +2 more
semanticscholar   +1 more source

p-Mechanics and Field Theory [PDF]

open access: yes, 2004
The orbit method of Kirillov is used to derive the p-mechanical brackets [math-ph/0007030, quant-ph/0212101]. They generate the quantum (Moyal) and classic (Poisson) brackets on respective orbits corresponding to representations of the Heisenberg group ...
Kisil, Vladimir V.
core   +3 more sources

Directional Macrocycle Transport, Release, and Recapture Enabled by a Rotaxane Transporter. [PDF]

open access: yesChemistry
This study represents a bistable rotaxane that enables the directional shuttling, release, and recapture of a dibenzo‐24‐crown‐8 macrocycle upon addition of suitable chemical stimuli. This two‐step molecular transport and release can be followed by NMR and distinct changes in the molecular fluorescence. Based on rational molecular design, the liberated
Kundu S, Mallick S, Riebe J, Niemeyer J.
europepmc   +2 more sources

The Bernstein problem for Lipschitz intrinsic graphs in the Heisenberg group [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2018
We prove that, in the first Heisenberg group H\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin ...
S. Nicolussi, Francesco Serra Cassano
semanticscholar   +1 more source

Quantum holonomies and the Heisenberg group [PDF]

open access: yesModern Physics Letters A, 2019
Quantum holonomies of closed paths on the torus [Formula: see text] are interpreted as elements of the Heisenberg group [Formula: see text]. Group composition in [Formula: see text] corresponds to path concatenation and the group commutator is a deformation of the relator of the fundamental group [Formula: see text] of [Formula: see text], making ...
J. E. Nelson, R. F. Picken
openaire   +3 more sources

Steiner Formula and Gaussian Curvature in the Heisenberg Group

open access: yesBruno Pini Mathematical Analysis Seminar, 2016
The classical Steiner formula expresses the volume of the ∈-neighborhood Ω∈ of a bounded and regular domain  Ω⊂Rn as a polynomial of degree n in ∈. In particular, the coefficients of this polynomial are the integrals of functions of the curvatures of the
Eugenio Vecchi
doaj   +1 more source

Strict starshapedness of solutions to the horizontal p-Laplacian in the Heisenberg group

open access: yesMathematics in Engineering, 2021
We examine the geometry of the level sets of particular horizontally p-harmonic functions in the Heisenberg group. We find sharp, natural geometric conditions ensuring that the level sets of the p-capacitary potential of a bounded annulus in the ...
Mattia Fogagnolo , Andrea Pinamonti
doaj   +1 more source

Home - About - Disclaimer - Privacy