St. Petersburg Mathematical Journal

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ISSN 1547-7371(e) ISSN 1061-0022(p)

On the solvability of the Neumann problem in domains with peak

Author(s): V. G. Maz'ya; S. V. Poborchiĭ
Translated by: S. V. Poborchiĭ
Original publication: Algebra i Analiz, tom 20 (2008), nomer 5.
Journal: St. Petersburg Math. J. 20 (2009), 757-790.
MSC (2000): Primary 35J25
Posted: July 21, 2009
MathSciNet review: 2492362
Retrieve article in: PDF

Abstract | References | Similar articles | Additional information

Abstract: The Neumann problem is considered for a quasilinear elliptic equation of second order in a multidimensional domain with the vertex of an isolated peak on the boundary. Under certain assumptions, the study of the solvability of this problem is reduced to a description of the dual to the Sobolev space $W_p^1(\Omega)$ or (in the case of a homogeneous equation with nonhomogeneous boundary condition) to the boundary trace space $TW_p^1(\Omega)$ . This description involves Sobolev classes with negative smoothness exponent on Lipschitz domains or Lipschitz surfaces, and also some weighted classes of functions on the interval (0,1) of the real line. The main results are proved on the basis of the known explicit description of the spaces $TW^1_p(\Omega)$ on a domain with an outward or inward cusp on the boundary.

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