Justus K. Mile, Bernard M. Nzimbi and S.K. Moindi, On the characterization of Class R_1 of non-normal operators in a Hilbert space, Pioneer Journal of Mathematics and Mathematical Sciences(PMMS), accepted March 2012, to appear.. Pioneer Journal of Mathematics and Mathematical Sciences(PJMMS). : Journal of Mathematics and Mathematical Sciences(PMMS) Abstract

Submitted. B.M. Nzimbi, G.P. Pokhariyal and S.K. Moindi, A note on A-self-adjoint and A-skew-adjoint operators and their extensions, Pioneer Journal of Mathematics and Mathematical Sciences, accepted January, 2012, to appear. Pioneer Journal of Mathematics and Mathematical Sciences(PJMMS). : Pioneer Journal of Mathematics and Mathematical Sciences Abstract

Submitted. Moindi, S.K., Pokhariyal, G.P. and Nzimbi, B.M., W_4-Curvature tensor on a A-Einstein Sasakian manifold, Global Journal of Theoretical and Applied Mathematical Sciences(GJTAMS), accepted Feb 2012, to appear.. Global Journal of Theoretical and Applied Mathematical Sciences(GJTAMS). : Global Journal of Theoretical and Applied Mathematical Sciences(GJTAMS) Abstract

Submitted. B.M. Nzimbi, G.P. Pokhariyal and S.K. Moindi, A note on metric equivalence of operators, Far East Math Jourmal (FMJS), accepted March 2012, to appear.. Global Journal of Theoretical and Applied Mathematical Sciences(GJTAMS). : Far East Math Science Journal Abstract

Submitted. Stephen Moindi Kibet, G.P. Pokhariyal and B.M. Nzimbi, W_2-Recurrent LP-Sasakian manifold, Universal Journal of Mathematics and Mathematical Sciences(UMMS) accepted in May 2012. Paper under review.. E.A.M. J. 58: 401-404, 1981.. : Universal Journal of Mathematics and Mathematical Sciences(UMMS) Abstract

Submitted. Stephen Moindi Kibet, G.P. Pokhariyal and B.M. Nzimbi, Study of W_4 Curvature tensor on Sasakian Manifold, Kenya J. Sciences(KJS), Vol. 14, No.1 2010, 1-8. Pioneer Journal of Mathematics and Mathematical Sciences(PJMMS). : Kenya Journal of Sciences(KJS), Abstract

2010.