# American Institute of Mathematical Sciences

June  2014, 7(2): 205-218. doi: 10.3934/krm.2014.7.205

## Non-existence and non-uniqueness for multidimensional sticky particle systems

 1 Department of Mathematics, Penn State University, University Park, Pa.16802 2 Department of Mathematics, University of Akron, Akron, OH 44325, United States

Received  December 2013 Revised  February 2014 Published  March 2014

The paper is concerned with sticky weak solutions to the equations of pressureless gases in two or more space dimensions. Various initial data are constructed, showing that the Cauchy problem can have (i) two distinct sticky solutions, or (ii) no sticky solution, not even locally in time. In both cases the initial density is smooth with compact support, while the initial velocity field is continuous.
Citation: Alberto Bressan, Truyen Nguyen. Non-existence and non-uniqueness for multidimensional sticky particle systems. Kinetic & Related Models, 2014, 7 (2) : 205-218. doi: 10.3934/krm.2014.7.205
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