Pure and Applied Mathematics Journal
Volume 2, Issue 2, April 2013, Pages: 98-100
Received: Apr. 8, 2013;
Published: Apr. 2, 2013
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Niteesh Sahni, Dept. of Mathematics
Niteesh Sahni, Shiv Nadar University, Village Chithera, Tehsil Dadri, Dist. Gautam Budh Nagar, Uttar Pradesh (India) 203207
Recently, Sahni and Singh  have solved an open problem posed by Youseﬁ and Hesameddini  regarding Hilbert spaces contained algebraically in the Hardy space H2(T). In fact the result obtained by Sahni and Singh is much more general than the open problem. In the present note we examine the validity of the main results of  and  in two variables.
Sub Hilbert Spaces in a Bi-Disk, Pure and Applied Mathematics Journal.
Vol. 2, No. 2,
2013, pp. 98-100.
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