Hadi Roopaei

4 Questions 4 Answers 0 Followers

Questions related from Hadi Roopaei

What do you think about these 10 questions in operator theory?

We intend to investigate about 10 questions that have the potential to be a part of papers or projects. The eager and decided mathematician can contact me for starting possible joint research.

22 July 2021 5,484 2 View

Search for a lower bound. Also, is there any easier proof ?

We are looking the lower bound of the matrix B^n in the factorization of the Hilbert matrix of order n of the form H^n=C^nB^n, where C^n is the Cesaro matrix of order n.

23 October 2020 2,851 2 View

What are the differences between the Cesaro matrix of order n and the Generalized Cesaro matrix?

You can see some of the differences in the attached file.

03 March 2020 8,008 3 View

Which operators commute with infinite Hilbert operator? equivalently: What is the inverse of the infinite Hilbert operator?

There is a formula for the finite Hilbert operator but for the infinite Hilbert operator it is still unknown and an open problem.

02 March 2020 3,915 2 View