Results 51 to 60 of about 12,503,673 (230)
Two characterization of BV functions on Carnot groups via the heat semigroup
, 2011 In this paper we provide two different characterizations of sets with finite perimeter and functions of bounded variation in Carnot groups, analogous to those which hold in Euclidean spaces, in terms of the short-time behaviour of the heat semigroup. The
Bramanti, Marco +2 more
core +1 more source
Pansu pullback and exterior differentiation for Sobolev maps on Carnot groups [PDF]
, 2022 Bruce Kleiner +2 more
openalex +1 more source
Investigating di‐n‐Butylcalcium
ChemistryEurope, EarlyView.A detailed synthetic, crystallographic, and spectroscopic investigation demonstrates that the hitherto elusive di‐n‐butylcalcium is accessible and stable at low temperature, and can be used for deprotometallation reactions. The synthesis and detailed characterization by NMR spectroscopy of di‐n‐butylcalcium are reported. The reaction of [Ca{N(SiMe3)2}2.
Gabriel Duneş +9 more
wiley +1 more source
Large time behavior for the heat equation on Carnot groups
, 2012 We first generalize a decomposition of functions on Carnot groups as linear combinations of the Dirac delta and some of its derivatives, where the weights are the moments of the function.
Rossi, Francesco
core +1 more source
ChemistryEurope, EarlyView.Direct air capture (DAC) of carbon dioxide (CO2) emerges as a key strategy for climate crisis mitigation. Redox‐mediated electrochemical carbon capture offers a promising route for energy‐efficient DAC. This perspective discusses recent advances in the field, highlighting key challenges, such as oxygen interference at low CO2 concentrations, and ...
Tilmann J. Neubert, Martin Oschatz
wiley +1 more source
Lipschitz extensions into Jet space Carnot groups [PDF]
, 2009 The aim of this article is to prove a Lipschitz extension theorem for partially defined Lipschitz maps to jet spaces endowed with a left-invariant sub-Riemannian Carnot-Carath\'eodory distance.
Wenger, Stefan, Young, Robert
core
Lusin approximation for horizontal curves in step 2 Carnot groups [PDF]
, 2022 Enrico Le Donne, Gareth Speight
openalex +1 more source
Synthesis of α‐Pentafluorosulfanylated‐β2,3‐Amino Esters
ChemistryEurope, EarlyView.De novo α‐SF5‐β2,3‐amino esters are now accessible through a straightforward aza‐Michael reaction using a series of newly developed (E)‐α‐SF5‐α,β‐unsaturated esters. Two new, highly functionalized, contiguous tertiary stereocenters are formed with diastereodivergence governed by the choice of solvent and/or base.
Thi Mo Nguyen +5 more
wiley +1 more source
Almost uniform domains and Poincaré inequalities
Transactions of the London Mathematical Society, 2021 Here we show existence of many subsets of Euclidean spaces that, despite having empty interior, still support Poincaré inequalities with respect to the restricted Lebesgue measure.
Sylvester Eriksson‐Bique, Jasun Gong
doaj +1 more source