Bounded Pointwise Approximation of Solutions of Elliptic Equations
Canadian journal of mathematics, Tome 48 (1996) no. 3, pp. 496-511

Voir la notice de l'article provenant de la source Cambridge University Press

We characterize open subsets U of RN in which the bounded solutions of certain elliptic equations can be approximated pointwise by uniformly bounded solutions that are continuous in Ū. This result is established in terms of certain capacities. For closed subsets X, this characterization allows us to approximate bounded solutions in X ° uniformly on relatively closed subsets of X ° by solutions continuous on certain subsets of the boundary of X.
DOI : 10.4153/CJM-1996-025-0
Mots-clés : 35A35, 41A30, 35J30, 31B15
Bonilla, A.; Trujillo-González, R. Bounded Pointwise Approximation of Solutions of Elliptic Equations. Canadian journal of mathematics, Tome 48 (1996) no. 3, pp. 496-511. doi: 10.4153/CJM-1996-025-0
@article{10_4153_CJM_1996_025_0,
     author = {Bonilla, A. and Trujillo-Gonz\'alez, R.},
     title = {Bounded {Pointwise} {Approximation} of {Solutions} of {Elliptic} {Equations}},
     journal = {Canadian journal of mathematics},
     pages = {496--511},
     year = {1996},
     volume = {48},
     number = {3},
     doi = {10.4153/CJM-1996-025-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1996-025-0/}
}
TY  - JOUR
AU  - Bonilla, A.
AU  - Trujillo-González, R.
TI  - Bounded Pointwise Approximation of Solutions of Elliptic Equations
JO  - Canadian journal of mathematics
PY  - 1996
SP  - 496
EP  - 511
VL  - 48
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1996-025-0/
DO  - 10.4153/CJM-1996-025-0
ID  - 10_4153_CJM_1996_025_0
ER  - 
%0 Journal Article
%A Bonilla, A.
%A Trujillo-González, R.
%T Bounded Pointwise Approximation of Solutions of Elliptic Equations
%J Canadian journal of mathematics
%D 1996
%P 496-511
%V 48
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1996-025-0/
%R 10.4153/CJM-1996-025-0
%F 10_4153_CJM_1996_025_0

[1] 1. Bagby, T., Approximation in the mean by solutions of elliptic equations, Trans. Amer. Math. Soc. 281 (1984), 761–784. Google Scholar

[2] 2. Boivin, A. and Verdera, J., Approximation parfonctions holomorphes dans les espaces LP, Lip α et BMO, Indiana Univ. Math. J. 40 (1991), 393–418. Google Scholar

[3] 3. Bourbaki, N.,Variétés Differentielles et Analytiques, Fascicule de résultats, Actualités Sci. Indust. 1333, 1347. Hermann, Paris, 1967. 1971. Google Scholar

[4] 4. Davie, A., Analytic capacity and approximation problems, Trans. Amer. Math. Soc. 173( 1972), 409–444. Google Scholar

[5] 5. Gamelin, T.W.,Uniform Algebras, Chelsea Publishing Company, New York, 1984. Google Scholar

[6] 6. Gamelin, T.W. and Garnett, J., Constructive techniques in rational approximation, Trans. Amer. Math. Soc. 143 (1969), 187–200. Google Scholar

[7] 7. Hadjiiski, N.H.,Vitushkin s type theorems for meromorphic approximation on unbounded sets, Proc. Conf. Complex Analysis and Applications 1981, Varna, 229–238. Bulgarian Acad. Sci., Sofia, 1984. Google Scholar

[8] 8. John, F.,Plane Waves and Spherical Means Applied to Partial Differential Equations, Interscience, New York, 1955. Google Scholar

[9] 9. O'Farrell, A.G., Rational approximation in Lipschitz norm II, Proc. Roy. Irish Acad. Sect. A 79 (1979), 104–114. Google Scholar

[10] 10. Stein, E.M.,Singular Integrals and Differentiability Properties of Functions, Princeton Univ. Press, Princeton, New Jersey, 1970. Google Scholar

[11] 11. Stein, E.M. and Weiss, G.,Introduction to Fourier Analysis on Euclidean Spaces, Princeton Univ. Press, Princeton, New Jersey, 1975. Google Scholar

[12] 12. Stray, A., Approximation and interpolation, Pacific J. Math. 40 (1972), 463–475. Google Scholar

[13] 13. Tarkhanov, N.N., Uniform approximation by solutions of elliptic systems, Math. USSR-Sb. 61 (1988), 351–377. Google Scholar

[14] 14. Tarkhanov, N.N., Laurent expansion and local properties of solutions of elliptic systems, Siberian Math. J. 29 (1988), 970–979. Google Scholar

[15] 15. Verdera, J., C approximation by solutions of elliptic equations and Calderon-Zygmund operators, Duke Math. J. 55 (1987), 157–187. Google Scholar

[16] 16. Vitushkin, A.G., Analytic capacity of sets in problems of approximation theory, Uspekhi Mat. Nauk 22 (1967), 141–199. English transl, Russian Math. Surveys 22 (1967), 139–200. Google Scholar

Cité par Sources :