Constrained Wave Equations and Wave Maps

Jalal Shatah, Chongchun Zeng

Research output: Contribution to journalArticlepeer-review


In this paper we establish that wave maps can be obtained by a penalization method if the initial data is well prepared. When the data is not well prepared, we prove that the solution of the penalized equation converges weakly to the solution of the system of coupled equations obtained in [11] by a multi-scale formal analysis. In particular, the interaction between the rapid normal oscillations and the tangential motions creates a new term in the limit system whose well-posedness is proved by using the Nash-Moser Implicit Function Theorem.

Original languageEnglish (US)
Pages (from-to)383-404
Number of pages22
JournalCommunications In Mathematical Physics
Issue number3
StatePublished - Aug 2003

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics


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