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20192026
most citedOn nodal and generalized singular structures of Laplacian eigenfunctions and applications in

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math.AP2026

Symmetry and critical points of second Neumann eigenfunctions on isosceles trapezoids and kites

Haiyun Deng, Changfeng Gui, Xuyong Jiang +3

We classify the symmetry and multiplicity of the second Neumann eigenvalue on isosceles trapezoids and kites as the height varies. Precisely, away from a unique transition height,…