Asian Journal of Mathematics & Statistics1994-54182077-2068Asian Network for Scientific Information10.3923/ajms.2012.150.157SatyanarayanaA. RaoJ. Venkateswara SuryakumarU. KumariP. Nirmala 4201254This manuscript illustrates the essential congruence θx on
a Pre A*-algebra A and arrive at a variety of properties of these. Also it bear
out certain properties of the operations Γx(p, q) and Φx.
It has been confirmed that θ is a factor congruence on A if and only if
θ = θx for some xεB(A). Further it was proved that
the centre B (A) of a Pre A*-algebra A with 1 is isomorphic with the Boolean
centre
(A) of A.]]>Guzman, F. and C.C. Squier,19902788110Koteswara Rao, P.,19941994Manes, E.G.,19891989Manes, E.G.,199330373394Rao, J.V.,20002000Venkateswara Rao, J. and K. Srinivasa Rao,200927380Satyanarayana, A., J. Venkateswara Rao, K. Srinivasa Rao and U.S. Kumar,201035459Srinivasa Rao, K.,20092009