Characteristic Numbers of Upper Triangular One-Band Block Operator Matrices
Rukiye Öztürk Mert, Pembe İpek Al, Zameddin I. İsmailov · Hitit University Institutional Repository · 2018
In this work the boundedness and compactness properties of upper triangular one-band block operator matrices in the infinite direct sum of Hilbert spaces have been studied. We also obtain the necessary and sufficient conditions when these operators belong to Schatten-von Neumann classes.