Geodesic
Sub-supersolution theorems for quasilinear elliptic problems: A variational approach
Electronic journal of differential equations, Tome 2004 (2004)
This paper presents a variational approach to obtain sub - supersolution theorems for a certain type of boundary value problem for a class of quasilinear elliptic partial differential equations. In the case of semilinear ordinary differential equations results of this type were first proved by Hans Knobloch in the early sixties using methods developed by Cesari.
Classification : 35B45, 35J65, 35J60
Keywords: sub and supersolutions, periodic solutions, variational approach 
@article{EJDE_2004__2004__a197,
     author = {Le,  Vy Khoi and Schmitt,  Klaus},
     title = {Sub-supersolution theorems for quasilinear elliptic problems: {A} variational approach},
     journal = {Electronic journal of differential equations},
     year = {2004},
     volume = {2004},
     zbl = {1134.35308},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2004__2004__a197/}
}
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%A Schmitt,  Klaus
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Le,  Vy Khoi; Schmitt,  Klaus. Sub-supersolution theorems for quasilinear elliptic problems: A variational approach. Electronic journal of differential equations, Tome 2004 (2004). http://geodesic.mathdoc.fr/item/EJDE_2004__2004__a197/