Abstract.
In this paper we derive very precise gradient estimates for solutions to the conductivity problem in the case where two circular conductivity inclusions are very close but not touching. The novelty of these estimates is that they give very specific information about the blow up of the gradient as the conductivities of the inclusions degenerate.
Similar content being viewed by others
References
Ammari, H., Kang, H., Kim, E., Lim, M.: Reconstruction of closely spaced small inclusions. SIAM J. Num. Anal. To appear
Budiansky, B., Carrier, G.F.: High shear stresses in stiff fiber composites. J. Appl. Mech. 51, 733–735 (1984)
Babuska, I., Andersson, B., Smith, P., Levin, K.: Damage analysis of fiber composites. I. Statistical analysis on fiber scale. Comput. Methods Appl. Mech. Engrg. 172, 27–77 (1999)
Bonnetier, E., Vogelius, M.: An elliptic regurality result for a composite medium with touching fibers of circular cross-section. SIAM J. Math. Anal. 31, 651–677 (2000)
Kang, H., Seo, J.K.: Layer potential technique for the inverse conductivity problem. Inverse Problems 12, 267–278 (1996)
Keller, J.B.: Stresses in narrow regions. Trans. ASME J. Appl. Mech. 60, 1054–1056 (1993)
Li, Y.Y., Nirenberg, L.: Estimates for elliptic systems from composite material. Commun. Pure Appl. Math. LVI, 892–925 (2003)
Li, Y.Y., Vogelius, M.: Gradient estimates for solutions to divergence form elliptic equations with discontinuous coefficients. Arch. Rational Mech. Anal. 153, 91–151 (2000)
Markenscoff, X.: Stress amplification in vanishing small geometries. Computational Mechanics 19, 77–83 (1996)
Author information
Authors and Affiliations
Additional information
Mathematics Subject Classification (2000): 35J25, 73C40
Rights and permissions
About this article
Cite this article
Ammari, H., Kang, H. & Lim, M. Gradient estimates for solutions to the conductivity problem. Math. Ann. 332, 277–286 (2005). https://doi.org/10.1007/s00208-004-0626-y
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00208-004-0626-y