College of Economic and Management Sciences | |
---|---|

School of Economic and Financial Sciences | |

Department: Decision Sciences | |

Professor | |

Tel: | 012 433 4620 |

E-mail: | jordakh@unisa.ac.za |

- BSc (UP)
- H.Dip.Ed. (UP)
- BSc(Hons) (WITS)
- MSc (UP)
- PhD (WITS)

- Financial Modelling
- Stochastic Calculus
- Masters and PhD supervisor

- Financial Mathematics
- Mathematical Analysis
- Approximation Theory

- Orthogonal polynomials and Special Functions

- K Driver, K. Jordaan, Zeros of quasi-orthogonal Jacobi polynomials,
*SIGMA*, 12 (2016), 042, 13 pages. - PA Clarkson, K Jordaan, & A Kelil, A generalized Freud weight,
*Studies in Applied Mathematics*, 136 (2016), 288-320. - SJ Johnston, A Jooste, K Jordaan, Quasi-orthogonality of some hypergeometric polynomials,
*Integral transforms and Special Functions*, 27 (2) (2016), 111-125. - P Gochhayat, K Jordaan, K Raghavendar, A Swaminathan, Interlacing properties and bounds for zeros of basic hypergeometric and little q-Jacobi polynomials,
*Ramanujan Journal,*40 (2016), 45-62. - SJ Johnston, K Jordaan, Quasi-orthogonality and real zeros of some 2F2 and 3F2 polynomials.
*Applied Numerical Mathematics*, 90 (2015) 1-8. - K Jordaan, H Wang, J Zhou, Monotonicity of zeros of polynomials orthogonal with respect to an even weight function,
*Integral Transforms and Special Functions*. 25 (9) (2014), 721-729. - K Jordaan, A Jooste, Bounds for zeros of Meixner and Kravchuk polynomials,
*London Mathematical Society Journal of Computation and Mathematics*, 17 (1) (2014) 47-57. - K Jordaan, F Toókos, Orthogonality and asymptotics of Pseudo-Jacobi polynomials for non-classical parameters,
*Journal of Approximation Theory*, 178 (2014), 1-12. - PA Clarkson, K Jordaan, The relationship between semi-classical Laguerre polynomials and the fourth Painlevé equation,
*Constructive Approximation*39(1) (2014), 223-254. - A Jooste, K Jordaan, F Toókos, On the zeros of Meixner polynomials,
*Numerische Mathematik*, 127(1) (2013), 57-71. - K Driver, K Jordaan, Inequalities for extreme zeros of some classical orthogonal and q-orthogonal polynomials,
*Mathematical Modelling of Natural Phenomena*, 8(1) (2013), 48-59. - D Dominici, SJ Johnston, K Jordaan, Real Zeros of Gauss Hypergeometric Polynomials,
*Journal of Computational and Applied Mathematics*. 247 (2013), 152–161. - K Driver, & K Jordaan, Bounds for extreme zeros of some classical orthogonal polynomials,
*Journal of Approximation Theory*, 164 (2012), 1200-1204. - K Driver, A Jooste, K Jordaan, Stieltjes interlacing of zeros of Jacobi polynomials from different sequences,
*Electronic Transactions on Numerical Analysis*, 38 (2011), 317-326. - D Dominici, K Driver, K Jordaan, Polynomial solutions of differential-difference equations, Journal of Approximation Theory, 163 (2011), 41-48.
- A Beardon, K Driver, K Jordaan, Zeros of polynomials embedded in an orthogonal sequence,
*Numerical Algorithms*, 57 (2011), 399-403. - K Driver, & K Jordaan,Stieltjes interlacing of zeros of Laguerre polynomials from different sequences, Indagationes Mathematicae, 21 (2011), 204–211.
- K Jordaan, F Toókos, Mixed relations and interlacing of the zeros of some q-orthogonal polynomials from different sequences,
*Acta Mathematica Hungarica*, 128 (1-2) (2010), 150-164. - K Driver, K Jordaan, N Mbuyi, On the interlacing of zeros of linear combinations of Jacobi polynomials from different sequences,
*Quaestiones Mathematicae*, 32(1) (2009), 47-54. - K Jordaan, F Toókos, Interlacing theorems for the zeros of orthogonal polynomials from different sequences,
*Applied Numerical Mathematics*, 59 (2009), 2015-2222. - K Driver, K Jordaan, N Mbuyi, Interlacing of zeros of linear combinations of classical orthogonal polynomials from different sequences,
*Applied Numerical Mathematics*, 59 (2009), 2424-2429. - K Jordaan, F Toókos, Convexity of the zeros of some orthogonal polynomials and related functions,
*Journal of Computational and Applied Mathematics*, 233 (2009), 762-767. - K Driver, K Jordaan, Zeros of linear combinations of Laguerre polynomials from different sequences,
*Journal of Computational and Applied Mathematics*, 233 (2009), 719-722. - K Driver, K Jordaan, N Mbuyi, Interlacing of the zeros of Jacobi polynomials with different parameters,
*Numerical Algorithms*, 49 (2008), 143-152. - K Driver, K Jordaan, Interlacing of zeros of shifted sequences of one-parameter orthogonal polynomials,
*Numerische Mathematik*, 107 (2007), 615-624. - K Driver, K Jordaan, A Martínez-Finkelshtein, Pólya frequency sequences and real zeros of some 3F2 polynomials,
*Journal of Mathematical Analysis and Applications*, 332 (2007), 1045-1055. - K Driver, K Jordaan, Interlacing of zeros of shifted sequences of one-parameter orthogonal polynomials
*, Numerische Mathematik*, 107 (2007), 615-624. - K Driver, K Jordaan, Asymptotic zero distribution of a class of 3F2 hypergeometric functions,
*Indagationes Mathematicae*, New Series, 14 (3,4), (2003), 319-327. - K Driver, K Jordaan, Asymptotic zero distribution of a class of 3F2 hypergeometric functions,
*Indagationes Mathematicae*, New Series, 14 (3,4), (2003), 319-327. - K Driver, K Jordaan, Convergence of ray sequences of Padé approximants for 2 F1(a,1;c;z), c>a>0,
*Quaestiones Mathematicae*, 25 (2002), 1-7. - K Driver, & K Jordaan, Zeros of the hypergeometric polynomial F(-n, b; c; z) , Algorithms for Approximation IV, Proceedings of the 2001 International Symposium, (2002), 436-445.
- M Kenfack Nangho, & K Jordaan, A characterization of Askey-Wilson polynomials,
*Proceedings of the American Mathematical Society*, submitted. - K Driver, & K Jordaan, Zeros of Jacobi polynomials P
_{n}^{(α,β) }, -2<α,β<-1,*Numerical Algorithms*, (2018). https://doi.org/10.1007/s11075-018-0474-6 - PA Clarkson, & K Jordaan, Properties of generalized Freud polynomials,
*Journal of Approximation Theory*, 225 (2018), 148-175

**Academic and Scientific citizenship**

- President: South African Mathematical Society
- Chairperson: Board of Directors of the South African Mathematical Society.

**Awards and Scientific scholarly recognition**

- Associate Research Fellow: African Institute Mathematical Sciences
- ISI h-index: 7
- Scopus h-index: 8
- Google Scholar profile h-index: 8
- Google Scholar i-10 index: