Blow up for the critical gKdV equation III: exotic regimes

By Yvan Martel, F. Merle, Pierre Raphael. 2012

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We consider the blow up problem in the energy space for the critical (gKdV) equation in the continuation of part I and part II. We know from part I that the unique and stable blow up rate for solutions close to the solitons with strong decay on the right is $1/t$. In this paper, we construct non-generic blow up regimes in the energy space by considering initial data with explicit slow decay on the right in space. We obtain finite time blow up solutions with speed $t^{-\nu}$ where $ \nu>11/13,$ as well as global in time growing up solutions with both exponential growth or power growth. These solutions can be taken with initial data arbitrarily close to the ground state solitary wave.

Subfields: Applied Mathematics, Mathematical Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/12dffac70928bfd0ad2f5d6e497c1263762d5785

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In Applied Mathematics

In Mathematical Physics

In Statistical and Nonlinear Physics

Citations in the corpus

Blow up for the critical gKdV equation II: minimal mass dynamics (2012, background): “We also refer to Part III [30] for examples of exotic blow up rates for initial data with slow decay.”