English

A profile decomposition for the limiting Sobolev embedding

Functional Analysis 2019-01-14 v2

Abstract

For many known non-compact embeddings of two Banach spaces EFE\hookrightarrow F, every bounded sequence in EE has a subsequence that takes form of a profile decomposition - a sum of clearly structured terms with asymptotically disjoint supports plus a remainder that vanishes in the norm of FF. In this note we construct a profile decomposition for arbitrary sequences in the Sobolev space H1,2(M)H^{1,2}(M) of a compact Riemannian manifold, relative to the embedding of H1,2(M)H^{1,2}(M) into L2(M)L^{2^*}(M), generalizing the well-known profile decomposition of Struwe ([Proposition 2.1]{Struwe}) to the case of arbitrary bounded sequences.

Keywords

Cite

@article{arxiv.1812.04248,
  title  = {A profile decomposition for the limiting Sobolev embedding},
  author = {Giuseppe Devillanova and Cyril Tintarev},
  journal= {arXiv preprint arXiv:1812.04248},
  year   = {2019}
}
R2 v1 2026-06-23T06:38:33.975Z