# American Institute of Mathematical Sciences

March  2014, 13(2): 789-809. doi: 10.3934/cpaa.2014.13.789

## A strongly singular parabolic problem on an unbounded domain

 1 Department of Mathematics, National Technical University of Athens, 15780, Athens, Greece 2 Department of Mathematics & Engineering Sciences, Hellenic Army Academy, 16673, Athens

Received  April 2013 Revised  September 2013 Published  October 2013

We study the well-posedness and describe the asymptotic behavior of solutions of a strongly singular equation for the Cauchy problem on $R^N$. The strong singularity is exactly the critical case of the Caffarelli-Kohn-Nirenberg inequality. Moreover, we show the stabilization towards a radially symmetric solution in self-similar variables with a polynomial decay rate. This equation is closely related to a heat equation with inverse-square potential, posed on $R^N$. In this case we have the appearance of the Hardy singularity energy.
Citation: G. P. Trachanas, Nikolaos B. Zographopoulos. A strongly singular parabolic problem on an unbounded domain. Communications on Pure & Applied Analysis, 2014, 13 (2) : 789-809. doi: 10.3934/cpaa.2014.13.789
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