Results 1 to 10 of about 2,760 (185)

A Cornucopia of Carnot Groups in Low Dimensions [PDF]

open access: goldAnalysis and Geometry in Metric Spaces, 2022
Stratified groups are those simply connected Lie groups whose Lie algebras admit a derivation for which the eigenspace with eigenvalue 1 is Lie generating.
Le Donne Enrico, Tripaldi Francesca
doaj   +2 more sources

Computational Experiments Probing the Adaptability of the [NCCH<sub>2</sub>]<sup>-</sup> Electronic Structure to Various Bonding Environments. [PDF]

open access: yesChemphyschem
Metalated nitriles are organometallic chameleons in solution, existing as a structural duality of N‐ and C‐metalated species exhibiting specific reactivities. With density functional theory (DFT) calculations and natural bond orbital analyses, it is explored how the metal nature (Li, Na, K, Cs, Cu(I)) and the chemical environment (ligand, solvation ...
Rio J, Brière JF, Gérard H.
europepmc   +2 more sources

Jean-Marie Souriau’s Symplectic Foliation Model of Sadi Carnot’s Thermodynamics [PDF]

open access: yesEntropy
The explanation of thermodynamics through geometric models was initiated by seminal figures such as Carnot, Gibbs, Duhem, Reeb, and Carathéodory. Only recently, however, has the symplectic foliation model, introduced within the domain of geometric ...
Frédéric Barbaresco
doaj   +2 more sources

About coincidence points theorems on 2-step Carnot groups with 1-dimensional centre equipped with Box-quasimetrics

open access: yesAIMS Mathematics, 2023
For some class of 2-step Carnot groups $ D_n $ with 1-dimensional centre we find the exact values of the constants in $ (1, q_2) $-generalized triangle inequality for their $ \text{Box} $-quasimetrics $ \rho_{\text{Box}_{D_n}} $. Using this result we get
Alexander Greshnov, Vladimir Potapov
doaj   +1 more source

Hilbert-Haar coordinates and Miranda's theorem in Lie groups

open access: yesBruno Pini Mathematical Analysis Seminar, 2020
We study the interior regularity of solutions to a class of quasilinear equations of non-degenerate p-Laplacian type on Lie groups that admit a system of Hilbert-Haar coordinates. These are coordinates with respect to which every linear function has zero
András Domokos, Juan J. Manfredi
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

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

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

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