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Carleman estimates for partial differential operators with real coefficients

โœ Scribed by A. Menikoff


Publisher
Springer
Year
1974
Tongue
English
Weight
697 KB
Volume
54
Category
Article
ISSN
0003-9527

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Gaussian Estimates for Second-Order Oper
โœ Stefan Karrmann ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 215 KB

We study second-order differential operators A with lower-order coefficients in some L q L . We prove the generation of positive, quasi-contractive C semiq ฯฑ 0 ลฝ . groups on L for all p g 1, ฯฑ . If the second-order coefficients are in some p L q L , we get upper pseudo-Gaussian bounds of the heat ke