In these notes we present an outline of the theory of the archetypal L∞ variational problem in the calculus of variations. Namely, given an open U ⊂ IRn and b ∈ C(∂U), find u ∈ C (Ū) which agrees with the boundary function b on ∂U and minimizes
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Crandall, M.G. (2008). A Visit with the ∞-Laplace Equation. In: Dacorogna, B., Marcellini, P. (eds) Calculus of Variations and Nonlinear Partial Differential Equations. Lecture Notes in Mathematics, vol 1927. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-75914-0_3
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