A perturbation problem related to the highly compressible behaviour of a fluid in a thin porous layer

References

• Aitchison , J. M. and Eiliott ockedon , C. M. 1983 . PERCOLATION IN GENTLY SLOPING BEACHES , 269 – 287 . IMA J APPL MATH .
   Google Scholar
• Bear , J. 1987 . Modeling groundwate flow and pollution , DORDRECT : D. REIDEL .
   Google Scholar
• Brezis , H. 1972 . Problems unilateraux , 1 – 168 . J MATH PURES APPL .
   Google Scholar
• Colli , P. 1984 . Some remarks on a problem of percolation in gently sloping beaches , 143 – 151 . ISTIT LOMBRADO ACCAD, SCI LETT, REND, A .
   Google Scholar
• Colli , P. N. and Kenmochi , N. 1987 . Nonlinera semigroup approach to class of evolution equations arising from percolation in sandbaks , 113 – 133 . Ann Mat Pura Appl .
   Google Scholar
• Elliott , C. M. and Friedman , A. 1985 . Analaysis of a model of percolation in a gently sloping sand-bank , 941 – 954 . SIAM J math Anal .
   Google Scholar
• Friedman , A. 1982 . Variational principles and free boundray problems , New York : John Wiley .
   Google Scholar
• Lions , J. L. 1969 . Quelques methodes de resolution des problesm aux limites non lineaires , paris : Dunod .
   Google Scholar
• Rodrigues , J. F. 1987 . Obstaclc poblems in mathematical physics North-Holland
   Google Scholar