Results 21 to 30 of about 453,228 (135)

L^p estimates for the wave equation associated to the Grushin operator

open access: yesANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE, 2014
We prove that the solution of the wave equation as- sociated to the Grushin operator $ G = -Δ+|x|^2 \partial_t^2 $ is bounded on $ L^p(R^{n+1})(1 < p < \infty)$, when $|1/p- 1/2 | < 1/n+2$ .
Jotsaroop, Kaur, Thangavelu, Sundaram
openaire   +4 more sources

Turbocharging synaptic transmission

open access: yesFEBS Letters, Volume 597, Issue 18, Page 2233-2249, September 2023., 2023
State1, a vesicle is captured by the six Upright Munc13s and pSNAREpins are formed by the outer VAMP2. State 2, diacylglycerol binding rearranges Munc13s to lateral closed conformation. State 3, the vesicle proceeds to a readily releasable pool. All pSNAREpins concomitantly exert high pressure for a longer time to ‘turbocharge’ the neurotransmitter ...
James E. Rothman   +3 more
wiley   +1 more source

Recent Advances in Visible Light‐Mediated Radical Fluoro‐alkylation, ‐alkoxylation, ‐alkylthiolation, ‐alkylselenolation, and ‐alkylamination

open access: yesThe Chemical Record, Volume 23, Issue 9, September 2023., 2023
In recent years, the rise of both organofluorine chemistry and photochemistry have intersected to bring about a myriad of visible light‐mediated protocols. The development of new reagents and advances in photo‐mediated processes have synergistically provided mild, effective, and reliable fluorine‐related transformations.
Daniel Lin   +4 more
wiley   +1 more source

On stable entire solutions of sub-elliptic system involving advection terms with negative exponents and weights

open access: yesJournal of Inequalities and Applications, 2020
We examine the weighted Grushin system involving advection terms given by { Δ G u − a ⋅ ∇ G u = ( 1 + ∥ z ∥ 2 ( α + 1 ) ) γ 2 ( α + 1 ) v − p in  R n , Δ G v − a ⋅ ∇ G v = ( 1 + ∥ z ∥ 2 ( α + 1 ) ) γ 2 ( α + 1 ) u − q in  R n , $$ \textstyle\begin{cases}
Belgacem Rahal
doaj   +1 more source

Cross‐Coupling Reactions Enabled by Well‐Defined Ag(III) Compounds: Main Focus on Aromatic Fluorination and Trifluoromethylation

open access: yesThe Chemical Record, Volume 23, Issue 9, September 2023., 2023
The propensity of Ag to undergo 1e− redox events makes Ag an unlikely catalyst in cross‐coupling. However, isolable organo‐AgIII species bearing macrocycles or perfluorinated ligands were recently found active in C−C and C‐heteroatom bond formation. Main advances in aryl‐F and aryl‐CF3 couplings proceeding via AgI/AgIII redox sequences, and comparison ...
Luca Demonti   +2 more
wiley   +1 more source

Unimolecular Reactivity of [Cu(R)(CF3)3]− Complexes (R=Organyl): Stepwise versus Concerted Mechanism in Copper‐Mediated Trifluoromethylation

open access: yesChemistry – A European Journal, Volume 29, Issue 41, July 20, 2023., 2023
A combination of gas‐phase fragmentation experiments and quantum chemical calculations affords detailed insight into the reactivity of high‐valent trifluoromethylated cuprate complexes. Depending on the nature of the organyl group R, these key intermediates of synthetically valuable trifluoromethylation reactions lose two radicals or undergo concerted ...
Bastian Zimmer   +2 more
wiley   +1 more source

Radical Deoxyfunctionalisation Strategies**

open access: yesEuropean Journal of Organic Chemistry, Volume 2022, Issue 26, July 14, 2022., 2022
With the development of milder technologies to access open‐shell species, radical deoxyfunctionalisation reactions have emerged as a powerful strategy to build C−C and C‐heteroatom bonds from readily available alcohols. This Review highlights the exciting advancements made in this field during the last decade using photochemistry, electrochemistry or ...
Khadijah Anwar   +3 more
wiley   +1 more source

Stable weak solutions to weighted Kirchhoff equations of Lane–Emden type

open access: yesAdvances in Difference Equations, 2021
This paper is concerned with the Liouville type theorem for stable weak solutions to the following weighted Kirchhoff equations: − M ( ∫ R N ξ ( z ) | ∇ G u | 2 d z ) div G ( ξ ( z ) ∇ G u ) = η ( z ) | u | p − 1 u , z = ( x , y ) ∈ R N = R N 1 × R N 2 ,
Yunfeng Wei, Hongwei Yang, Hongwang Yu
doaj   +1 more source

On the Grushin operator and hyperbolic symmetry [PDF]

open access: yesProceedings of the American Mathematical Society, 2000
Complexity of geometric symmetry for differential operators with mixed homogeniety is examined here. Sharp Sobolev estimates are calculated for the Grushin operator in low dimensions using hyperbolic symmetry and conformal geometry.
openaire   +2 more sources

On some operator-valued Fourier pseudo-multipliers associated to Grushin operators [PDF]

open access: yes, 2023
This is a continuation of our work [BBGG23, BBGG22] where we have initiated the study of sparse domination and quantitative weighted estimates for Grushin pseudo-multipliers.
Basak, Riju   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy