Abstract
The ∞‐Bilaplacian is a third‐order fully nonlinear PDE given by urn:x-wiley:0749159X:media:num22295:num22295-math-0001In this work, we build a numerical method aimed at quantifying the nature of solutions to this problem, which we call ∞‐biharmonic functions. For fixed p we design a mixed finite element scheme for the prelimiting equation, the p‐Bilaplacian urn:x-wiley:0749159X:media:num22295:num22295-math-0002We prove convergence of the numerical solution to the weak solution of and show that we are able to pass to the limit p → ∞. We perform various tests aimed at understanding the nature of solutions of and we prove convergence of our discretization to an appropriate weak solution concept of this problem that of ‐solutions.
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