Eigenfunctions

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Browse all works related to Eigenfunctions.

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We consider the zeros of a Neumann eigenfunction φλ on an analytic domain Ω solving the equation −Δφ λ = λ2φλ. We count the number n(λ, H) of intersection points of the nodal lines of φλ (components of the nodal set) with a fixed real analytic curve H contained in the interior o…

The problem of finding eigenvalues and eigenfunctions and studying their behavior plays a crucial role in modern mathematics. More than a century of study by a legion of researchers, including many of the top names in physics as well as mathematics, has led to many important res…