On the Singularities of the Viscosity Solutions to Hamilton-Jacobi-Bellman Equations
P. CannarsaH. Soner
Indiana University Mathematics Journal
1987
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10.1512/iumj.1987.36.36028
10.1512/iumj.1987.36.36028
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Indiana Univ. Math. J. 36 (1987) 501 - 524
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