Abstract
We present a general covariance property and use it to prove that proper nondegenerate self-similar blow-up is not possible for active scalar equations.
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Constantin, P. Absence of Proper Nondegenerate Generalized Self-Similar Singularities. Journal of Statistical Physics 93, 777–786 (1998). https://doi.org/10.1023/B:JOSS.0000033162.96173.50
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DOI: https://doi.org/10.1023/B:JOSS.0000033162.96173.50