Cubic NLW/NLKG on R4: Difference between revisions

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* Scaling is <math>s_c = 1</math>.
* Scaling is <math>s_c = 1</math>.
* LWP for <math>s \geq 1</math> by Strichartz estimates (see e.g. [[Bibliography#LbSo1995|LbSo1995]]; earlier references exist)
* LWP for <math>s \geq 1</math> by Strichartz estimates (see e.g. [[Bibliography#LbSo1995|LbSo1995]]; earlier references exist)

Revision as of 01:28, 29 July 2006

  • Scaling is .
  • LWP for by Strichartz estimates (see e.g. LbSo1995; earlier references exist)
    • When the time of existence depends on the profile of the data and not just on the norm.
    • One has strong uniqueness in the energy class [Pl-p5], FurPlTer2001. This argument extends to other energy-critical and sub-critical powers in dimensions 4 and higher.
    • For one has instantaneous blowup in the focusing case, and unbounded growth of norms in the defocusing case [CtCoTa-p2]
  • GWP for in the defocussing case SaSw1994 (see also Gl1990, Gl1992, Sw1988, Sw1992, BaSa1998, BaGd1997).
    • In the focussing case there is blowup from large data by the ODE method.