Muhammad Sirajo Abdullahi

5 Questions 10 Answers 0 Followers

Questions related from Muhammad Sirajo Abdullahi

Request for an e-copy/link for a book by Tsai-Han Kiang?

Please I would like your help on getting an e-copy of the book entitled "The theory of fixed point classes" by Tsai-Han Kiang. Best regards, M.S. Abdullahi

03 August 2018 5,478 4 View

Did all real Banach algebras have a positive elements?

I learn that in a Banach algebra over F (R or C), an element a is positive if and only if a=b*b, and equivalently a is positive if a = a* and spectrum of a is a subset of R of non negative...

08 December 2017 9,667 10 View

How can one generate a new fractal?

I was able to recently draw a supposedly new geometric fractal analogous to Sierpinski's triangle. But I do not know how to draw/generate the fractal say after a thousands times iteration. I also...

24 January 2017 3,074 7 View

Can we have a set-valued mappings with values as C* algebras?

Let X be a complete metric space (C*-algebra valued) and CB(X) be nonempty closed and bounded subset of X. Can we define a mapping T:X------->CB(X), i.e. Can we have a C*-algebra valued...

06 June 2016 460 3 View

Can some one help on variational inequalities?

Can someone please help me with or how to get some (basic) notes on mixed (auxiliary) variational inequalities?

14 March 2015 9,733 5 View