We develop a new method to obtain symmetrization inequalities of Sobolev type. Our approach leads to new inequalities and considerable simplification in the theory of embeddings of Sobolev spaces based on rearrangement invariant spaces. © 2007 Elsevier Inc. All rights reserved.
Martin, J., Milman, M., & Pustylnik, E. (2007). Sobolev inequalities: Symmetrization and self-improvement via truncation. Journal of Functional Analysis, 252, 677-695. https://doi.org/10.1016/j.jfa.2007.05.017