Self-similar solutions for the Schrödinger map equation

Pierre Germain, Jalal Shatah, Chongchun Zeng

Research output: Contribution to journalArticlepeer-review


We study in this article the equivariant Schrödinger map equation in dimension 2, from the Euclidean plane to the sphere. A family of self-similar solutions is constructed; this provides an example of regularity breakdown for the Schrödinger map. These solutions do not have finite energy, and hence do not fit into the usual framework for solutions. For data of infinite energy but small in some norm, we build up associated global solutions.

Original languageEnglish (US)
Pages (from-to)697-707
Number of pages11
JournalMathematische Zeitschrift
Issue number3
StatePublished - Jan 2010

ASJC Scopus subject areas

  • General Mathematics


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