%0 Journal Article %A Yiwan Guo and Fahui Zhai %D 2016 %J International Journal of Mathematical and Computational Sciences %B World Academy of Science, Engineering and Technology %I Open Science Index 109, 2016 %T Spherical Spectrum Properties of Quaternionic Operators %U https://publications.waset.org/pdf/10003650 %V 109 %X In this paper, the similarity invariant and the upper semi-continuity of spherical spectrum, and the spherical spectrum properties for infinite direct sums of quaternionic operators are characterized, respectively. As an application of some results established, a concrete example about the computation of the spherical spectrum of a compact quaternionic operator with form of infinite direct sums of quaternionic matrices is also given. %P 15 - 18