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Fritz Gesztesy

Baylor University



On factorizations of differential operators and Hardy-Rellich-type inequalities



November 28, 2018
3:00 pm    PHG 646



Abstract
 

We will illustrate how factorizations of singular, even-order partial differential operators yield an elementary approach to classical inequalities of Hardy-Rellich-type. More precisely, using this factorization method, we will derive a general inequality and demonstrate how particular choices of the parameters contained in this inequality yield well-known inequalities, such as the classical Hardy and Rellich inequalities, as special cases. Actually, other special cases yield additional and apparently less well-known inequalities. We will indicate that our method, in addition to being elementary, is quite flexible when it comes to a variety of generalized situations involving the inclusion of remainder terms and higher-order operators.

This is based on various joint work with Lance Littlejohn, I. Michael, M. Pang, and R. Wellman.






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