Electronic Journal of Differential Equations, Vol. 2007(2007), No. 141, pp. 1-9. Title: Regularity of weak solutions to the Landau-Lifshitz system in bounded regular domains Author: Kevin Santugini-Repiquet (Univ. Bordeaux 1, France) Abstract: In this paper, we study the regularity, on the boundary, of weak solutions to the Landau-Lifshitz system in the framework of the micromagnetic model in the quasi-static approximation. We establish the existence of global weak solutions to the Landau-Lifshitz system whose tangential space gradient on the boundary is square integrable. Submitted July 18, 2005. Published October 24, 2007. Math Subject Classifications: 35D10, 35K55, 35K60. Key Words: Micromagnetism; Landau-Lifshitz equation; weak solutions; boundary regularity.