Extremals for Moser Inequalities

Autor: Mark Leckband, Steven M. Hudson
Rok vydání: 2004
Předmět:
Zdroj: Archive for Rational Mechanics and Analysis. 171:43-54
ISSN: 1432-0673
0003-9527
DOI: 10.1007/s00205-003-0280-7
Popis: This paper shows that extremals exist for four Moser inequalities involving exponential integrals. The results are for Sobolev spaces defined on the spheres S2 and S3, on the disk D2, and on RP2. The method that Carleson and Chang used for the n-ball, with boundary value zero, can be modified and applied to functions with mean value zero on these domains. This approach also provides an elementary proof of the Moser inequality for Sn, n≥2, which is a special case of a result of Fontana.
Databáze: OpenAIRE