Convergence problems of the eigenfunction expansions for polyharmonic operators

• Main Author: Mohd Aslam, Siti Nor Aini
• Format: Thesis
• Language: English
• Published: 2018
• Subjects: Operator theory; Eigenfunction expansions
• Online Access: http://psasir.upm.edu.my/id/eprint/79204/1/IPM%202019%2010%20ir.pdf; http://psasir.upm.edu.my/id/eprint/79204/
• Institution: Universiti Putra Malaysia

This research focuses on convergence and summability problems of the eigenfunctions expansions of differential operators related to polyharmonic operator in closed domain. The polyharmonic operator (-- ∆)‴,m ∈ Z+ is the elliptic operator of order 2m with domain consists of classes of infinitely diff...