Results 21 to 30 of about 2,466 (181)

DFT screening of adsorption of biodiesel molecules on aluminum and stainless steel surfaces

open access: yesResults in Surfaces and Interfaces, 2022
We present a Density Functional Theory (DFT) study of the adsorption of small organic molecules, taken as models of biodiesel autoxidation products, on stainless steel and aluminum surfaces.
Claudia Cantarelli   +4 more
doaj   +1 more source

Nature and importance of follicular lymphoma precursors

open access: yesHaematologica, 2014
It is now widely recognized that cancer development is a protracted process requiring the stepwise acquisition of multiple oncogenic events. In humans, this process can take decades, if not a lifetime, blurring the notion of ‘healthy’ individuals ...
Emilie Mamessier   +6 more
doaj   +1 more source

On Viscosity and Equivalent Notions of Solutions for Anisotropic Geometric Equations

open access: yesAbstract and Applied Analysis, 2020
We prove that viscosity solutions of geometric equations in step two Carnot groups can be equivalently reformulated by restricting the set of test functions at the singular points.
Cecilia De Zan, Pierpaolo Soravia
doaj   +1 more source

Nonexistence Results for Semilinear Equations in Carnot Groups

open access: yesAnalysis and Geometry in Metric Spaces, 2013
In this paper, following [3], we provide some nonexistence results for semilinear equations in the the class of Carnot groups of type ★.This class, see [20], contains, in particular, all groups of step 2; like the Heisenberg group, and also Carnot ...
Ferrari Fausto, Pinamonti Andrea
doaj   +1 more source

Laser-induced thermoelectric effects in electrically biased nanoscale constrictions

open access: yesNanophotonics, 2018
Electrically biased metal nanostructures are at the core of innovative multifunctional integrated devices that control the flow of electrons and photons at the nanoscale.
Mennemanteuil Marie-Maxime   +6 more
doaj   +1 more source

Differentiability and ApproximateDifferentiability for Intrinsic LipschitzFunctions in Carnot Groups and a RademacherTheorem

open access: yesAnalysis and Geometry in Metric Spaces, 2014
A Carnot group G is a connected, simply connected, nilpotent Lie group with stratified Lie algebra.We study intrinsic Lipschitz graphs and intrinsic differentiable graphs within Carnot groups.
Franchi Bruno   +2 more
doaj   +1 more source

Convex functions on Carnot groups

open access: yesRevista Matemática Iberoamericana, 2007
We consider the definition and regularity properties of convex functions in Carnot groups. We show that various notions of convexity in the subelliptic setting that have appeared in the literature are equivalent. Our point of view is based on thinking of convex functions as subsolutions of homogeneous elliptic equations.
P. JUUTINEN   +3 more
openaire   +6 more sources

Subelliptic and parametric equations on Carnot groups [PDF]

open access: yesProceedings of the American Mathematical Society, 2015
This article concerns a class of elliptic equations on Carnot groups depending on one real parameter. Our approach is based on variational methods. More precisely, we establish the existence of at least two weak solutions for the treated problem by using a direct consequence of the celebrated Pucci-Serrin theorem and of a local minimum result for ...
Molica Bisci G, Ferrara M
openaire   +5 more sources

Identifying 1-rectifiable measures in Carnot groups

open access: yesAnalysis and Geometry in Metric Spaces, 2023
We continue to develop a program in geometric measure theory that seeks to identify how measures in a space interact with canonical families of sets in the space. In particular, extending a theorem of M. Badger and R.
Badger Matthew, Li Sean, Zimmerman Scott
doaj   +1 more source

Conformality and Q-harmonicity in Carnot groups

open access: yesDuke Mathematical Journal, 2006
The main theorem of this paper is that 1-quasiconformal maps are smooth in all Carnot groups. This theorem can be used to prove rigidity theorems for quasiconformal maps between open subsets in certain classes of groups without any a priori smoothness assumption.
Capogna, Luca, Cowling, Michael
openaire   +4 more sources

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