Let $B \in M_{n}(C)$ be a row diagonally dominant matrix, i.e., $\sigma_i \left\vert b_{ii}\right\vert = \sum\limits_{{j=i} \atop {j\not=i}}^n} \left\vert b_{ij ...
In this paper, we study the change of spectrumand the existence of Riesz bases of specific classes of n × n unbounded operator matrices, called: diagonally and off-diagonally generalized subordinate ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results