Journal Articles 

1. O. Olela-Otafudu and M.S. Zweni, On expansive homeomorphisms on a quasi-uniform space, FILOMAT (to appear). 

2. D. Bugajewski, P. Kasprzak, and O Olela-Otafudu, Hyperconvexity in partial metric spaces: challenges and outlooks. arXiv:2601.02279 Preprint, arXiv:2601.02279 [math.GN] (2026).

3. P. Haihambo and O. Olela-Otafudu, Addendum to Entropy on quasi-uniform spaces  [Acta Math. Hungar., 171 (2023), 241-266],  Acta Math. Hungar.  Acta Math. Hungar. 178 (2026) 239–241.

4. O. Olela-Otafudu, On the Gromov-Hausdorff quasi-metric distance, Topology Proc. 68 (2026) 75-91. 

5. O. Olela-Otafudu and O.T. Phawe, On the modular metric completion,  Appl. Gen. Topol. 26 (2025) 827–838.

6. O. Olela-Otafudu, On asymmetric semi-inner product spaces, Selected papers of the 2023 International Conference on Topology and its Applications (2025) 141–157.

7. Z. Mushaandja and O. Olela-Otafudu, On the modular metric topology, Topology Appl. 372 (2025) 109224.

8. P. Haihambo and O. Olela-Otafudu,  Quasi-uniform entropy vs topological entropy. Topology Appl. 356 (2024) 109054. 

9. O. Olela-Otafudu, M.S. Zweni and M. Dibona, Expansive homeomorphisms on quasi-metric spaces, Appl. Gen. Topol. 25 (2024) 1–15.

10. O. Olela-Otafudu and O.T. Phawe, On one-local retract in modular metrics, Categ. Gen. Algebr. Struct. Appl. 20 (2024) 201-219.

11. P. Haihambo and O. Olela-Otafudu, Entropy on quasi-uniform spaces, Acta Math. Hungar 171 (2023) 241–266.

12. D. K. Mukongo, O. Olela-Otafudu  and W.T. Bombe, On the ultra-quasi-tight extensions, Math. Appl. 12 (2023) 101–114 .

13. P. Haihambo and O. Olela-Otafudu, On entropy in quasi-metric space, Topology Appl. 332 (2023) 108512.

14. O. Olela-Otafudu and   S. M. Zweni, W-convexity on the Isbell-convex hull of an asymmetrically normed real vector space, Filomat 37 (2023) 1975–1988.

15. O. Olela-Otafudu and D. Mukonda, On Bourbaki-bounded sets on quasi-pseudometric spaces, Math. Appl. 8 (2022) 155–168 .

16. O. Olela-Otafudu and K. Sebogodi, On w-Isbell-convexity, Appl. Gen. Topol.  23 (2022) 91-105.

17. C. Gilmour, O. Olela-Otafudu, F. G. Russo and A. Schauerte, Remembering Hans-Peter Künzi (1955–2020), Topology Appl. 2022, 107904 .

18. D. K. Mukongo, O. Olela-Otafudu  and W.T. Bombe, The Katetov constructions on asymmetric spaces, Topology Appl. 2022, 107962.

19. O. Olela-Otafudu , On superample functions on extended quasi-pseudometric spaces, Houston J. Math.  47 (2021) 483-497.

20. H. Sabao and O. Olela-Otafudu, Some aspects of quasi-uniform box products, Novi Sad J. Math. 51 (2021) 43-60 .

21. O. Olela-Otafudu and O. Valero, On Information Orders on Metric Spaces,  Information 2021, 12, 427.

22. O. Olela-Otafudu, Maps that preserve left (right) K-Cauchy sequences, Hacet. J. Math. Stat.  50 (2021) 1466-1476. 

23. H. Sabao and O. Olela-Otafudu, Isbell convexity in fuzzy quasi-metric spaces,  Khayyam J. Math. 7 (2021) 266-278.

24. H. Sabao and O. Olela-Otafudu, On soft quasi-pseudometric spaces. Appl. Gen. Topol. 22  (2021) 17-30.

25. M. Gabeleh, S.P. Moshokoa and  O. Olela-Otafudu, Approximate best proximity point sequence for C* mappings in strictly convex Banach spaces, Quaest. Math. 43 (2020) 1791–1807. . 

26.  M. Gabeleh, S.I.E. Manna, A.A. Eldred and O. Olela-Otafudu, Strong and weak convergence of Ishikawa iterations for best proximity pairs, Open  Math. 18 (2020) 10-21. 

27.  O. Olela-Otafudu, Y. Mutemwa and  H. Sabao, On gluing of quasi-pseudometric spaces, Khayyam J. Math. 6 (2020) 129-140.

28.  O. Olela-Otafudu, W. B. Toko  and  D. Mukonda, On bornology of extended quasi-metric spaces, Hacet. J.  Math.  Stat. 48 (2019) 1767-1777. 

29.  O. Olela-Otafudu, Gated sets in T0-quasi-metric spaces, Topology Appl. 263 (2019) 159-171.

30.  H. Sabao and O. Olela-Otafudu, Infinite games and quasi-uniform box products, Appl. Gen. Topol. (2019) 57-73. 

31.  M. Gabeleh, O. Olela Otafudu and N. Shahzad, Coincidence Best Proximity Points in Convex Metric Spaces, Filomat 32 (2018) 2451-2463.

32.  M. Gabeleh, O. Olela Otafudu and  N. Shahzad,  Best proximity point results using proximal normal structure revisited. J. Nonlinear Convex Anal. 19 (2018) 603–615. 

33. O. Olela Otafudu, Some aspects of Isbell-convex quasi-metric spaces. Appl. Gen. Topol. 19 (2018) 173-187. 

34. H. Sabao and O. Olela Otafudu, Set-valued maps and q-hyperconvex spaces, J. Nonlinear Convex Anal . 19 (2018) 603-615. 

35. M. Gabeleh and O. Olela Otafudu, Markov-Kakutani's theorem for best proximity pairs in Hadamard spaces. Indag. Math. (N.S.) 28 (2017) 680–693. 

36. M. Gabeleh,  P. Julia Mary and A. Eldred Eldred,  O. Olela Otafudu, Cyclic pairs and common best proximity points in uniformly convex Banach spaces. Open Math. 15(2017) 711–723. 

37. J. Conradie, H.-P. A.  Künzi and O.  Olela Otafudu,  The vector lattice structure on the Isbell-convex hull of an asymmetrically normed real vector space. Topology Appl. 231(2017) 92–112. 

38. M. Gabeleh and  O. Olela Otafudu,  Global optimization of cyclic Kannan nonexpansive mappings in nonreflexive Banach spaces. Quaest. Math. 40 (2017)  739–751. 

39. M. Gabeleh,  O. Olela Otafudu and R. Plebaniak,  Proximal monotonicity in partially ordered metric spaces and F-cyclic contractions, Miskolc Math. Notes 18 (2017)  739–750.

40. O. Olela Otafudu and H. Sabao, On quasi-uniform box product, Appl. Gen. Topol. 18 (2017) 61-74.

41.  Z. Mushaandja and O. Olela Otafudu, Quasi-metric trees and q-hyperconvex hulls, Turkish J. Math.  41 (2017) 122-131. 

42. Z. Mushaandja and O. Olela Otafudu, Versatileasymmetrical tight extensions, Topol. Algebra  Appl. 5 (2017) 6-12. 

43. H.-P. Kunzi and O. Olela Otafudu, Addendum to “The injective hull of ultra-quasi-metric versus q-hyperconvex hull of quasi-metric space”[Topol. Appl. 203 (2016) 170–176], Topology Appl. 217 (2017) 95-96. 

44. G. Moosa and O, Olela Otafudu, Best proximity point solutions for certain classes of cyclic contractions in ordered metric spaces. Bulletin of Mathematical Analysis and Applications 8 (2016) 35-48.

45. G. Moosa and O. Olela Otafudu, Nonconvex proximal normal structure in convex metric spaces, Banach J. Math. Anal.  10 (2016)  400-414.

46. G. Moosa and O. Olela Otafudu, Generalized pointwise noncyclic relatively nonexpansive mappings in strictly convex Banach spaces. J. Nonlinear Convex Anal. 17 (2016) 1117-1128.

47.  O. Olela Otafudu , The injective hull of ultra-quasi-metric versus q-hyperconvex hull of quasi-metric space, Topology  Appl. 203 (2016) 170-176. 

48. S.N. Mishra and O. Olela Otafudu, Fixed point theorems in ultra-metric spaces, J. Nonlinear Convex Anal.  17 (2016) 377-386. 

49. K.D. Mukongo and O. Olela Otafudu, The δ-completion of a quasi-pseudometric space, Topology Appl. 189 (2015) 65-77. 

50. O. Olela Otafudu, On one-local retract in quasi-metric spaces, Topology Proc. 45 (2015) 271-281. 

51. O. Olela Otafudu, On weak external q-hyperconvex spaces, Ann. Funct. Anal. , 6 (2015) 96-109. 

52. O. Olela Otafudu, A fixed point Theorem in non-Archimedean Asymmetric normed linear Spaces, Fixed Point Theory 16  (2015) 175–184.

53. O. Olela Otafudu, Extremal function pairs in asymmetrically normed linear spaces, Topology Appl. 166 (2014)  98-107. 

54. O. Olela Otafudu, Quasi-metric tree in T0-quasi-metric spaces, Topology  Appl. 160 (2013) 1794-1801. 

55. S.N. Mishra and O. Olela Otafudu, On asymptotically nonexpansive mappings in q-hyperconvex T0-quasi-metric spaces, Advances in Fixed point Theory, 3(2013) 135-140. 

56. H.-P. Kunzi and  O. Olela Otafudu, q-hyperconvexity and fixed point theorems, J. Funct. Spaces Appl.  vol. 2012, Article ID 765903, 18 pages.

57. H.-P. Kunzi and  O.Olela Otafudu, The ultra-quasi-metrically injective hull of a T0-ultra-quasi-metric space, Applied Category Structures, 21 (2013) 651-670. 

58. E. Kemajou, H.-P. Kunzi, and O.Olela Otafudu, The Isbell-Hull of a di-space, Topology  Appl. 159 (2012) 2463-2475. 

59. H.-P. Kunzi and O. Olela Otafudu, The scale of a quasi-uniform space,  Acta Math. Hungar.  127  (2010) 239--259.

Proceedings Articles

60.  H.-P. Kunzi and   O. Olela Otafudu , The versatile Hausdorff hyperspace construction: in Applied Topology: Recent progress for Computer Science, Fuzzy Mathematics and Economics, Proc. WIAT'09 , Palma de Mallorca Spain, (2009) pp 17--27.

61.  H.-P. Kunzi and O. Olela Otafudu, Injectivity in T0-ultra-quasi-metric space: in Applied Topology: Recent progress for Computer Science, Fuzzy Mathematics and Economics, Proc. WIAT'12, Castello Spain, (2012) pp 93-105.

University publications

62.  O. Olela Otafudu, Convexity in quasi-metric spaces , PhD thesis in Mathematics, University of Cape Town 2012.

63. O. Olela Otafudu, The scale of a quasi-uniform space, MSc thesis in Mathematics, University of Cape Town 2009.

64.  O. Olela Otafudu, Application of the discrete and the continuous models to the calculation of real options. Essays towards the Honors Degree in Applied Mathematics, University of Kinshasa 2004.

Book

65. O. Olela Otafudu, The scale of a quasi-uniform space , LAP Lambert Academic Pub. ISBN: 978-3-8433-8562-6 (2010).