Available in electronic format
Available in print format
Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826 (e) ISSN 0002-9939 (p)
     

Whitney property in two dimensional Sobolev spaces

Author(s): Dorin Bucur; Alessandro Giacomini; Paola Trebeschi
Journal: Proc. Amer. Math. Soc. 136 (2008), 2535-2545.
MSC (2000): Primary 46E35
Posted: March 4, 2008
Retrieve article in: PDF

Abstract | References | Similar articles | Additional information

Abstract: For $ p >1$, we prove that all the functions of $ W_{\rm loc}^{2,p}(\mathbb{R}^2)$ satisfy the Whitney property; i.e., if $ u \in W_{\rm loc}^{2,p}(\mathbb{R}^2)$ is such that $ \nabla u=0$ (in the sense of capacity) on a connected set $ K\subseteq \mathbb{R}^2$, then $ u$ is constant on $ K$.


References:

1.
Adams, D. R., Hedberg, L. I.: Function spaces and potential theory, Grundlehren der Mathematischen Wissenschaften [Fundamental Principles of Mathematical Sciences], 314. Springer-Verlag, Berlin, 1996. MR 1411441 (97j:46024)

2.
Ambrosio, L., Fusco, N., Pallara, D.: Functions of bounded variations and free discontinuity problems. Clarendon Press, Oxford, 2000. MR 1857292 (2003a:49002)

3.
Bagby, T.: Quasi topologies and rational approximation. J. Funct. Anal. 10 (1972), 259-268. MR 0355058 (50:7535)

4.
Bates, S. M.: On the image size of singular maps. I. Proc. Amer. Math. Soc. 114, 3 (1992), 699-705. MR 1074748 (92f:58015)

5.
Bates, S. M.: On the image size of singular maps. II. Duke Math. J. 68, 3 (1992), 463-476. MR 1194950 (94e:58009)

6.
Bojarski, B., Hajłasz, P., Strzelecki, P.: Sard's theorem for mappings in Hölder and Sobolev spaces. Manuscripta Math. 118 (2005), no. 3, 383-397. MR 2183045 (2007b:58014)

7.
Brock, F.: Continuous rearrangement and symmetry of solutions of elliptic problems. Proc. Indian Acad. Sci. Math. Sci. 110, no. 2, (2000), 157-204. MR 1758811 (2001i:35016)

8.
Bucur, D.: Shape analysis for nonsmooth elliptic operators. Appl. Math. Lett. 9 (1996), no. 3, 11-16. MR 1385991 (96m:35062)

9.
Bucur, D., Trebeschi, P.: Shape optimisation problems governed by nonlinear state equations. Proc. Roy. Soc. Edinburgh Sect. A 128 (1998), 945-963. MR 1642112 (99i:49048)

10.
Dal Maso, G., Ebobisse, F., Ponsiglione, M.: A stability result for nonlinear Neumann problems under boundary variations. J. Math. Pures Appl. 82 (2003), 503-532. MR 1995490 (2005b:35092)

11.
De Pascale, L.: The Morse-Sard theorem in Sobolev spaces. Indiana Univ. Math. J. 50 (2001), 1371-1386. MR 1871360 (2002k:58018)

12.
Evans, L. C., Gariepy, R. F.: Measure Theory and Fine Properties of Functions, CRC Press, Boca Raton, FL, 1992. MR 1158660 (93f:28001)

13.
Giacomini, A., Trebeschi, P.: A density result for Sobolev spaces in dimension two, and applications to stability of nonlinear Neumann problems. J. Differential Equations 237 (2007), 27-60. MR 2327726

14.
Heinonen, J., Kilpelainen, T., Martio, O.: Fine topology and quasilinear elliptic equations. Annales de l'Institut Fourier 39, 2 (1989), 293-318. MR 1017281 (91b:31015)

15.
Heinonen, J., Kilpeläinen, T., Martio, O.: Nonlinear potential theory of degenerate elliptic equations. Oxford Mathematical Monographs. Oxford Science Publications. The Clarendon Press, Oxford University Press, New York, 1993. MR 1207810 (94e:31003)

16.
Kilpeläinen, T., Malý, J.: Supersolutions to degenerate elliptic equation on quasi open sets. Comm. Partial Differential Equations 17, 3-4 (1992), 371-405. MR 1163430 (93g:31022)

17.
Lewis, J.: Uniformly fat sets. Trans. Amer. Math. Soc. 308 (1988), no. 1, 177-196. MR 946438 (89e:31012)

18.
Norton, A.: A critical set with nonnull image has large Hausdorff dimension. Trans. Amer. Math. Soc. 296, no. 1 (1986), 367-376. MR 837817 (87i:26011)

19.
Rogers, C. A.: Hausdorff Measures. Cambridge University Press, Cambridge, 1970. MR 0281862 (43:7576)

20.
Sard, A.: The measure of the critical values of differentiable maps. Bull. Amer. Math. Soc. 48 (1942), 883-890. MR 0007523 (4:153c)

21.
Sverák, V.: On optimal shape design. J. Math. Pures Appl. 72 (1993), 537-551. MR 1249408 (94j:49047)

22.
Whitney, H.: A function not constant on a connected set of critical points. Duke Math. J. 1 (1935), 514-517. MR 1545896


Similar Articles:

Retrieve articles in Proceedings of the American Mathematical Society with MSC (2000): 46E35

Retrieve articles in all Journals with MSC (2000): 46E35


Additional Information:

Dorin Bucur
Affiliation: Laboratoire de Mathématiques, CNRS UMR 5127 Université de Savoie, Campus Scientifique, 73376 Le-Bourget-Du-Lac, France
Email: dorin.bucur@univ-savoie.fr

Alessandro Giacomini
Affiliation: Dipartimento di Matematica, Facoltà di Ingegneria, Università degli Studi di Brescia, Via Valotti 9, 25133 Brescia, Italy
Email: alessandro.giacomini@ing.unibs.it

Paola Trebeschi
Affiliation: Dipartimento di Matematica, Facoltà di Ingegneria, Università degli Studi di Brescia, Via Valotti 9, 25133 Brescia, Italy
Email: paola.trebeschi@ing.unibs.it

DOI: 10.1090/S0002-9939-08-09366-0
PII: S 0002-9939(08)09366-0
Received by editor(s): May 15, 2007
Posted: March 4, 2008
Communicated by: Mario Bonk
Copyright of article: Copyright 2008, American Mathematical Society
The copyright for this article reverts to public domain after 28 years from publication.


  AMS Website Logo Small Comments: webmaster@ams.org
© Copyright 2009, American Mathematical Society
Privacy Statement
Search the AMSPowered by Google