U Dewan - Annali di Matematica Pura ed Applicata (1923-), 2024 - Springer
One of the most celebrated problems in Euclidean Harmonic analysis is the Carleson's problem: determining the optimal regularity of the initial condition f of the Schrödinger …
M Bhowmik, S Pusti - Journal of Functional Analysis, 2022 - Elsevier
In this paper we study an extension problem for the Laplace-Beltrami operator on Riemannian symmetric spaces of noncompact type and use the solution to prove Hardy-type …
P Kumar, S Ray, R Sarkar - Transactions of the American mathematical …, 2014 - ams.org
In 1980, Roe proved that if a doubly-infinite sequence $\{f_k\} $ of functions on $\mathbb {R} $ satisfies $ f_ {k+ 1}=(df_ {k}/dx) $ and $| f_ {k}(x)|\leq M $ for all $ k= 0,\pm 1,\pm 2,\cdots …
S El Ouadih, R Daher - Comptes …, 2021 - comptes-rendus.academie-sciences …
In this paper we extend classical Titchmarsh theorems on the Fourier–Helgason transform of Lipschitz functions to the setting of Lp-space on Damek–Ricci spaces. As consequences …
In a recent paper by the authors, growth properties of the Fourier transform on Euclidean space and the Helgason Fourier transform on rank one symmetric spaces of non-compact …
P Kumar - Journal of Functional Analysis, 2014 - Elsevier
In this paper we prove that for λ∈ R∖{0} the Poisson transform P λ F of F∈ L 2 (K/M) belongs to L 2,∞(G/K). This complements an earlier result of Lohoué and Rychener. Using …
We shall obtain inequalities for Fourier transform via moduli of continuity on NA groups. These results in particular settle the conjecture posed in a recent paper by WO Bray and M …
RP Sarkar - Israel Journal of Mathematics, 2013 - Springer
We consider the rank one Riemannian symmetric spaces of noncompact type and their non- symmetric generalization, namely the Damek-Ricci spaces. We show that the heat …
F Astengo, B Di Blasio - Journal of Mathematical Analysis and Applications, 2012 - Elsevier
Dynamics of the heat semigroup in Jacobi analysis Page 1 J. Math. Anal. Appl. 391 (2012) 48–56 Contents lists available at SciVerse ScienceDirect Journal of Mathematical Analysis and …