EP operator EP element involution strong involution semigroup with involution ring with involution regular ring antiregular ring *-regular ring faithful ring C*-algebra group inverse Drazin inverse generalized inverse Moore-Penrose inverse regular element antiregular element polar element quasipolar element global star cancelation law annihilator
Issue Date:
2015
Publisher:
Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences
Citation:
Serdica Mathematical Journal, Vol. 41, No 1, (2015), 83p-116p
Abstract:
This work includes a survey of most of the results concerning EP elements in semigroups and rings with involution and in C*-algebras. 2010 Mathematics Subject Classification: Primary 46L05, 46J05, 46H05, 46H30, 47A05, 47A53, 47A60, 15A09, 15A33, 16A28, 16A32, 16B99,16W10; Secondary 46E25,46K05, 47A12, 47A68.
