Visiting Appointments:
| Name | Position | Country of Origin | Year of Defence | |
| 1. | W. Aigbe | Prof., Univ. of Ibadan, Nigeria | Nigeria, | 1980 |
| 2. | A. Bakó | Prof., Technical College, Budapest | Hungary | 1971 |
| 3. | E. Boros | Prof., Rutgers University | Hungary | 1984 |
| 4. | J. Bukszár | Assistant Prof., Univ. of Miskolc | Hungary | 1998 |
| 5. | A. Burkauskas | Lithuanian Acad. Sci., Vilnius | Lithuania | 1985 |
| 6. | I. Deák | Associate Prof., Techn. Univ. Budapest | Hungary | 1971 |
| 7. | I.C. Fábián | Assistant Prof., Univ. of Budapest | Hungary | 1999 |
| 8. | E. Ferenczy | Prof., Canada | Hungary | 1963 |
| 9. | P. Futó | Entrepeneur, Budapest | Hungary | 1980 |
| 10. | L. Gao | Researcher AT&T, USA | USA | 2001 |
| 11. | L. Gerencsér | Prof., Hungarian Acad. Sci. | Hungary | 1970 |
| 12. | S. Halász | Researcher AT&T, USA | Hungary | 1976 |
| 13. | T. Heikkinen | Prof., Univ. of Birmingham, UK | Finland | 2001 |
| 14. | P. Kelle | Prof., Univ of Louisiana, USA | Hungary | 1979 |
| 15. | G. Kéri | Researcher, HAS | Hungary | 1978 |
| 16. | É. Komáromi | Assoc. Prof., Econ. Univ. Budapest | Hungary | 1980 |
| 17. | M. Kopp | Prof., Medical Univ. Budapest | Hungary | 1982 |
| 18. | Z. László | Prof., Univ. Veszprém, Hungary | Hungary | 1972 |
| 19. | W. Li | Researcher, California, USA | USA | 1995 |
| 20. | J. Long | Researcher, Merck Co., NJ, USA | USA | 1995 |
| 21. | G. Nagy | Assist. Prof., Techn. Univ. Budapest | Hungary | 2002 |
| 22. | Ho Ngoc Luat | Hanoi, Vietnam | Vietnam | 1984 |
| 23. | Dinh The Luc | Prof., Univ. Avignon, France | Vietnam | 1984 |
| 24. | A. Majthay | Prof., Univ. Florida, USA | Hungary | 1969 |
| 25. | J. Mayer | Habil. Dozent, Univ. Zürich | Hungary | 1976 |
| 26. | D. Monhor | Assoc. Prof. Univ. Western Hungary | Mongolia | 1983 |
| 27. | A. Móricz | Researcher, Ministry of Finance, Hungary (deceased) | Hungary | 1970 |
| 28. | M. Murr | Researcher, AT&T, Princeton, USA | USA | 1992 |
| 29. | G. Németh | Researcher (deceased) | Hungary | 1969 |
| 30. | M. Oschwald | Director, Erasmus Co., Netherlands | W. Germany | 1985 |
| 31. | J. Pintér | Pintér Consulting Services, Canada | Hungary | 1975 |
| 32. | R. Rao | Prof., Indian Inst. Techn. | India | 1980 |
| 33. | T. Rapcsák | Prof., Hung. Acad. Sci. | Hungary | 1974 |
| 34. | P. Révész | Prof., Techn. Univ. Vienna, Full member, Hung. Acad. Sci. | Hungary | 1962 |
| 35. | F. Sebestyén | Researcher, Hungary | Hungary | 1970 |
| 36. | A. Sebö | Prof., Univ. Grenoble, France | Hungary | 1988 |
| 37. | J. Stáhl | Prof., Economic Univ. Budapest | Hungary | 1974 |
| 38. | B. Strazicky | Assoc. Prof. St. Steven Univ. Bp. | Hungary | 1976 |
| 39. | E. Stubnya | Assoc. Prof., Techn. Univ. Budapest | Hungary | 1979 |
| 40. | T. Szántai | Prof., Techn. Univ. Budapest | Hungary | 1985 |
| 41. | D. Szász | Prof., Techn. Univ.Budapest, Full member, Hung. Acad. Sci. | Hungary | 1966 |
| 42. | S. Szedmák | Postdoc, Royal Holloway Univ. England | Hungary | 2003 |
| 43. | A. Vásárhelyi | Assoc. Prof. Techn. Univ. Budapest | Hungary | 1984 |
| 44. | G. Veress | Prof. Univ. Veszprém, Hungary | Hungary | 1974 |
| 45. | D. Vermes | Prof. Univ. Washington, Seattle USA | Hungary | 1984 |
| 46. | I. Zóki | Teacher, Novi Sad, Yu. | Yugoslavia | 1972 |
| 47. | I. Zsuffa | Prof., Techn. Univ. Budapest | Hungary | 1962 |
| A. Horváth | Hungary |
| Xiaoling Hou | USA |
| Tongyin Liu | USA |
| Karnchana Panichacarn | USA |
| Ersoy Subasi | USA |
Other former students, whose interest was turned to OR while being students of A. Prékopa include: Prof. I. Maros, Imperial College, London, Prof. T. Terlaky, McMaster Univ. Canada, Prof. L.B. Kovács, Univ. of Copenhagen, Prof. B. Vizvári, Univ. of Budapest, Prof. Á. Eiben, Univ. of Amsterdam, Dr. J. Fülöp, HAS, etc.
Member of the editorial boards of: Acta Cybernetica; Acta Sci. Math. Hung.; Annales Univ. R. Eötvös, Sectio Math.; Annals of Operations Research; Computational Man. Sci.; Discrete Applied Mathematics; Mathermatical Inequalities and Appl. Formerly: Stochastic Processes, Mathematics of Operations Research; European Journal of Operational Research; Periodica Mathematica Hungarica.