selected publications

academic article
 Rational Cohomology Algebra of Mapping Spaces between Complex Grassmannians. International Journal of Mathematics and Mathematical Sciences. 2020:14. 2020
 Rationalized evaluation subgroups of mapping spaces between complex Grassmannians. Afrika Matematika. 31:297303. 2020
 Pythagorean Triples with Common Sides. Journal of Mathematics. 2019:18. 2019
 Rational homotopy of mapping spaces between complex Grassmannians. Quaestiones Mathematicae. 112. 2019
 The Laguerre Type Operator in a Left Definite Hilbert Space. Journal of Mathematical Analysis and Applications. 192:460468. 1995
 Differential operators and the Laguerre type polynomials. SIAM journal on mathematical analysis. 23:722736. 1992
 Differential operators of certain special functions and their applications to linear differential equations. International Journal of Mathematical Education in Science and Technology. 19:435442. 1988
 Laguerre polynomials and singular differential operators. Indian Journal of Pure and Applied Mathematics. 18:515535. 1987
 Taylor's theorem for a function of several variablesClassroom notes. International Journal of Mathematical Education in Science and Technology. 18:315323. 1987
 Tchebichef polynomials of the second kind and sihculas differertial operators. International atomic energy agency and united matrons educational scientific and cultural organization  International center for theoretical physics. 1985

report
 Differential operators associated with Gegenbauer polynomials3. the regular case 1989
 Differential operators associated with Hermite polynomials 1989
 On some properties of the Laguerretype differential operators 1989
 Differential operators associated with Gegenbauer polynomials1: the limitcircle case 1987
 The Bessel polynomials and their differential operators 1987
 A note on Gegenbauer's differential operators and their applications to linear differential equations 1985
 A problem of Tchebichef polynomials of the first kind and regular differential operators 1985
 Tchebichef polynomials of the second kind and singular differential operators 1985

thesis