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The $$C^{1,1}$$-character of solutions of second order elliptic equations with gradient constraint. (English) Zbl 0458.35035

##### MSC:
 35J60 Nonlinear elliptic equations 35B65 Smoothness and regularity of solutions to PDEs 35B37 PDE in connection with control problems (MSC2000) 93C20 Control/observation systems governed by partial differential equations 74B20 Nonlinear elasticity
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##### References:
 [1] Cafferelli L.A, Arch. of Rat. Mech. and Anal. 69 pp 31– (1979) · Zbl 0399.73044 · doi:10.1007/BF00248408 [2] Evans L.C, Comm. in Part. Diff. Equations 4 pp 555– (1979) · Zbl 0448.35036 · doi:10.1080/03605307908820103 [3] Ladyzhenskaya, O.A and Ural’tseva, N.N. 1968. ”Linear and Quasilinear Elliptic Equations”. New York: Academic Press.
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