2 citations · 3 across the 2 of their papers we have counts for
3 papers
math.FA2017
An invertibility criterion in a C*-algebra acting on the Hardy space with applications to composition operators
Uğur Gül, Beyaz Başak Koca
In this paper we prove an invertibility criterion for certain operators which is given as a linear algebraic combination of Toeplitz operators and Fourier multipliers acting on the…
math.CV2016★ 2 cited
Invariant subspaces generated by a single function in the polydisc
Beyaz Basak Koca, Nazim Sadik
In this study, we partially answer the question left open in Rudin's book "Function theory in polydiscs" on the structure of invariant subspaces of the Hardy space on th…
math.FA2016★ 1 cited
Two types of invariant Subspaces in the polydisc
Beyaz Basak Koca
It is known that the structure of invariant subspaces of the Hardy space on the polydisc is very complicated; hence, we need good examples help us…