Results 81 to 90 of about 1,589 (178)

Comparing three possible hypoelliptic Laplacians on the 5-dimensional Cartan group via div-curl type estimates

open access: yesAdvanced Nonlinear Studies
On general Carnot groups, the definition of a possible hypoelliptic Hodge-Laplacian on forms using the Rumin complex has been considered in (M. Rumin, “Differential geometry on C-C spaces and application to the Novikov-Shubin numbers of nilpotent Lie ...
Baldi Annalisa, Tripaldi Francesca
doaj   +1 more source

Lipschitz and bilipschitz maps on Carnot groups [PDF]

open access: yesPacific Journal of Mathematics, 2013
Suppose A is an open subset of a Carnot group G, where G has a discrete analogue, and H is another Carnot group. We show that a Lipschitz function from A to H whose image has positive Hausdorff measure in the appropriate dimension is biLipschitz on a subset of A of positive Hausdorff measure.
openaire   +2 more sources

Learning with computer simulations: a case study on reservoir temperatures in carnot cycles

open access: yesInvestigações em Ensino de Ciências
Computer simulations have played a significant role in the development of physics, and in physics education as well. Researchers have addressed whether simulations promote learning, but few studies have investigated how simulations actually participate ...
Juan José Velasco   +2 more
doaj   +1 more source

Isodiametric inequality in Carnot groups

open access: yesAnnales Academiae Scientiarum Fennicae Mathematica, 2011
The classical isodiametric inequality in the Euclidean space says that balls maximize the volume among all sets with a given diameter. We consider in this paper the case of Carnot groups. We prove that for any Carnot group equipped with a Haar measure one can find a homogeneous distance for which this fails to hold. We also consider Carnot-Caratheodory
openaire   +4 more sources

Double ball property: an overview and the case of step two Carnot groups

open access: yesBruno Pini Mathematical Analysis Seminar, 2012
We investigate the notion of the so-called Double Ball Property, which concerns the nonnegative sub-solutions of some differential operators. Thanks to the axiomatic approach developed in [6], this is an important tool in order to solve the Krylov ...
Giulio Tralli
doaj  

Coercive inequalities on Carnot groups: taming singularities

open access: yesAnalysis and Mathematical Physics
AbstractIn the setting of Carnot groups, we propose an approach of taming singularities to get coercive inequalities. To this end, we develop a technique to introduce natural singularities in the energy function U in order to force one of the coercivity conditions.
Bou Dagher, E., Zegarliński, B.
openaire   +2 more sources

Morrey estimates for subelliptic p-Laplace type systems with VMO coefficients in Carnot groups

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we study estimates in Morrey spaces to the horizontal gradient of weak solutions for a class of quasilinear sub-elliptic systems of p-Laplace type with VMO coefficients under the controllable growth over Carnot group if p is not too
Haiyan Yu, Shenzhou Zheng
doaj  

Metric quasiconformality and Sobolev regularity in non-Ahlfors regular spaces

open access: yesAnalysis and Geometry in Metric Spaces
Given a homeomorphism f:X→Yf:X\to Y between QQ-dimensional spaces X,YX,Y, we show that ff satisfying the metric definition of quasiconformality outside suitable exceptional sets implies that ff belongs to the Sobolev class Nloc1,p(X;Y){N}_{{\rm{loc}}}^{1,
Lahti Panu, Zhou Xiaodan
doaj   +1 more source

Docetaxel-titanate nanotubes enhance radiosensitivity in an androgen-independent prostate cancer model

open access: yesInternational Journal of Nanomedicine, 2017
Céline Mirjolet,1 Julien Boudon,2 Alexis Loiseau,2 Sandy Chevrier,1 Romain Boidot,1 Alexandra Oudot,3 Bertrand Collin,3 Etienne Martin,1 Pattayil Alias Joy,4 Nadine Millot,2 Gilles Créhange1 1Department of Radiation Oncology, Center ...
C Mirjolet   +10 more
doaj  

H-convergence for equations depending on monotone operators in Carnot groups

open access: yesElectronic Journal of Differential Equations, 2021
Alberto Maione
doaj  

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