Resultats globals: 3 registres trobats en 0.02 segons.
Articles, 3 registres trobats
Articles 3 registres trobats  
1.
31 p, 443.9 KB Sub-Gaussian heat kernel estimates and quasi Riesz transforms for 1≤p≤2 / Chen, Li (Instituto de Ciencias Matemáticas (Madrid, Espanya))
On a complete non-compact Riemannian manifold M, we prove that a so-called quasi Riesz transform is always Lp bounded for 1 < p ≤ 2. If M satifies the doubling volume property and the sub-Gaussian heat kernel estimate, we prove that the quasi Riesz transform is also of weak type (1; 1).
2015 - 10.5565/PUBLMAT_59215_03
Publicacions matemàtiques, Vol. 59 Núm. 2 (2015) , p. 313-338 (Articles)  
2.
17 p, 341.3 KB Revisiting the Fourier transform on the Heisenberg group / Lakshmi Lavanya, R. ; Thangavelu, S.
A recent theorem of S. Alesker, S. Artstein-Avidan and V. Milman characterises the Fourier transform on Rn as essentially the only transform on the space of tempered distributions which interchanges convolutions and pointwise products. [...]
2014 - 10.5565/PUBLMAT_58114_03
Publicacions matemàtiques, Vol. 58, Núm. 1 (2014) , p. 47-63  
3.
23 p, 183.8 KB Heat kernel lower Gaussian estimates in the doubling setting without Poincaré inequality / Boutayeb, S. (Université de Cergy-Pontoise (França). Département de Mathématiques)
In the setting of a manifold with doubling property satisfying a Gaussian upper estimate of the heat kernel, one gives a characterization of the lower Gaussian estimate in terms of certain Hölder inequalities.
2009 - 10.5565/PUBLMAT_53209_08
Publicacions matemàtiques, V. 53 n. 2 (2009) p. 457-479  

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