On the Differentiability of Weak Solutions of a Differential Equation in Banach Space
M. CrandallA. Pazy
Indiana University Mathematics Journal
1969
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10.1512/iumj.1969.18.18072
10.1512/iumj.1969.18.18072
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Indiana Univ. Math. J. 18 (1969) 1007 - 1016
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