Vebsite  
Place of birth  Shamakhy district  
Date of birth  05.12.1961  
Education  Baku State University  
Scientific degree  Cand.ph.math.sci  
Title  docent  
Topic of PhD thesis:
 specialty code  specialty name  topic name 
01.01.01 Differesial equations Spectral analysis of a class of bundle of not selfadjoint differential operators. 

Total number of printed scientific publications:
 number of scientific publications printed abroad:  number of papers published in journals indexed and abstracted in international databases 
35
8 24 

Number of patents and certificates of authorship  
Staff training:
 number of PhD 

Basic scientific achievements  Solution of direct and inverse problems for a not selfadjoint complexvalued periodic coefficient differential operators.  
Names of scientific works  1.Efendiev, R. F. To the spectral analysis of ordinary differential operators polynomially depending on a spectral parameter with periodic matrix coefficients.Proc. Inst. Math. Mech. Acad. Sci. Azerb.
12 (2000), 3034, 189. MR1890821 (2003b:47076) 2.Èfendiev, R. F. On the spectral analysis of ordinary differential operators that depend polynomially on the spectral parameter with periodic matrix coefficients. (Russian) Proceedings of the Third International Conference "Differential Equations and Applications" (St. Petersburg, 2000),142146, Math. Res. (St. Petersburg), 7, Izd. St.Peterbg. Gos. Tekh. Univ., St. Petersburg,2000. MR1822507 3.Èfendiev, R. F. An inverse problem for a class of secondorder differential operators. (Russian) Dokl. Nats. Akad. Nauk Azerb.57 (2001), no. 46, 1520. MR1978678 (2004b:34027) 4. Èfendiev, R. F. An inverse problem for operators with periodic coefficients Dokl. Nats. Akad. Nauk Azerb.(2004), no. 12, 3943. 5. Èfendiev, R. F. An inverse problem for a class of ordinary differential operators with periodic coefficients. (Russian) Mat. Fiz. Anal. Geom.11 (2004), no. 1, 114121. MR2046357 (2005a:34120) 6. Èfendiev, R. F. Spectral analysis of a class of nonselfadjoint differential operator pencils with a generalized function Theoretical and Mathematical Physics,145(1): (2005)1457–1461 7. Èfendiev, R. F An inverse problem for one class of the second order operator pencil with complex periodic coefficients. Dokl. Nats. Akad. Nauk Azerb.(2005), no. 3, 611. 8. Efendiev, R. F. Complete solution of an inverse problem for one class of the high order ordinary differential operators with periodic coefficients. Zh. Mat. Fiz. Anal. Geom.2 (2006), no. 1, 7386, 111. MR2205491 9. Efendiev, R. F. The characterization problem for one class of second order operator pencil with complex periodic coefficients., Mosc. Math. J., 7:1 (2007), 55–65 10. Efendiev, R. F Inverse spectral problem for differential operator with discontinuity wave speed  Dokl. Nats. Akad. Nauk Azerb. (2008), no. 3, 611. 11. Efendiev, R. F. Inverse indefinite spectral problem for high order differential operator pencil with complex periodic coefficients Proceeding of Baku State University, 2008, №4, 1722. 12. F.A. Aliev, N.A. Safarova, A. Nachaoui, Y.S. Gasimov, R.F. Efendiev. An iterative algorithm for the solution of the discrete periodic optimal regulator problem, Repots of ANAS, Vol. LXIV, № 6, 2008. 13. Efendiev, R. F Inverse wave spectral problem with discontinuous wave speed, Zh. Mat. Fiz. Anal. Geom.6 (2010), no. 3, 255 265. 14. Efendiev, R.F. , Orucov H.D Spectral analysis of nonselfadjoint Hill operators Journal of Qafqaz University, Number 29, Volume 1, 4753 , 2010 15. Efendiev, R.F. Spectral analysis for one class of second order indefinite nonselfadjoint differential operator pencil  Journal: Applicable Analysis Volume 90, Issue 12, December 2011, pages 18371849 16. Efendiev, R.F. , Orucov H. SPECTRAL ANALYSIS OF NONSELFADJOINT HILL OPERATORS WITH STEPLIKE POTENTIALS  Journal of Qafqaz University , № 33, 2011, pp. 815. 17. Efendiev, R.F. , Orucov H. Spectral Analysis of wave equation in onedimensional layered inhomogeneous medium with barrier Journal of Qafqaz University , № 31, 2012, pp. 1017. 18. Efendiev, R.F. , Niftiyev A.A . Variable domain eigenvalue problems for the Laplace operator with density International Journal of Nonlinear Science , 2013. Т. 16. №. 3. Pp. 280288. 19. arXiv:0804.2320 [pdf, ps, other] Title: Spectral analysis for one class of secondorder indefinite nonselfadjoint differential operator pencil Authors: R. F. Efendiev Comments: 9 pages Subjects: Spectral Theory (math.SP); Classical Analysis and ODEs (math.CA) 20. arXiv:0804.2120 [pdf, ps, other] Title: The OneDimenshional Inverse Wave Spectral Problem with Discontinuous Wave Speed Authors: R.F. Efendiev Comments: 11 pages Subjects: Classical Analysis and ODEs (math.CA) 21. arXiv:0804.1065 [pdf, ps, other] Title: Inverse Indefinite Spectral Problem for Second Order Differential Operator with Complex Periodoc Coefficients Authors: R.F. Efendiev Comments: 14 pages Subjects: Spectral Theory (math.SP); Analysis of PDEs (math.AP) 22. arXiv:math/0510647 [pdf, ps, other] Title: The characterization problem for one class of second order operator pencil with complex periodic coefficients Authors: R. F. Efendiev Comments: 9 pages Subjects: Spectral Theory (math.SP); Classical Analysis and ODEs (math.CA) 23. arXiv:math/0410307 [pdf] Title: The characterization problem for one class high order ordinary differential operators with periodic coefficients Authors: R.F. Efendiev Comments: 11pages Subjects: Spectral Theory (math.SP) 24. arXiv:math/0404273 [pdf] Title: Necessary and sufficient conditions for the inverse problem of one class ordinary differential operators with complex periodic coefficients Authors: Rakib Feyruz Efendiev Comments: 30.03.2004 Subjects: Spectral Theory (math.SP) 25. arXiv:math/0403462 [pdf] Title: Inverse problem for one class of nonselfadjoint operator's bunches with nonperiodic coefficients Authors: Rakib Feyruz Efendiev Subjects: Spectral Theory (math.SP) 26. Efendiev R.F. Inverse Wave Spectral Problem in OneDimensional Layered Media BulgarianTurkishUkrainian Scientific Conference "Mathematical Analysis, Differential Equations and their Applications" Sunny Beach, Bulgaria, 15  20 September, 2010 27. Efendiev, R. F. Spectral analysis of nonselfadjoint Hill operators with steplike Potentials – International Conference on Functional Analysis Dedicated to 90th Anniversary of V. E. Lyantse L'viv, Ukraine, November 17{21, 2010 28. Efendiev R.F. On an inverse problem for the high order differential equation – THE THIRD CONGRESS OF THE WORLD MATHEMATICAL SOCIETY OF TURKIC COUNTRIES June 30  July 4, 2009 29. R. F. Efendiev Inverse problem for a class of ordinary differential operators with periodic coefficients. Conference on ILLPOSED and INVERSE ROBLEMS in honour of the 70th anniversary of the birth of Prof. M.M. Lavrent'ev August 59, 2002 ,Novosibirsk, Russia 30. R. F. Efendiev  Inverse Wave Scattering with Discontinuous Wave Speed  International Conference «Inverse and IllPosed Problems of Mathematical Physics», dedicated to Professor M. M. Lavrentiev on the occasion of his 75th birthday August 2025, 2007, Novosibirsk, Russia 31. R. F. Efendiev INVERSE PROBLEM FOR ONE CLASS OF HIGH ORDER ORDINARY DIFFERENTIAL OPERATORS WITH PERIODIC COEFFICIENTS, Proceedings of 38th Annual Iranian Mathematics Conference 32. R.F. Efendiev  Wave propagation in onedimensional layeredinhomogeneous medium with barrier. – The IV Congress of the Turkic World Mathematics Society Baku, Azerbaijan,2011, 13 July 33. R. F. Efendiev Inverse indefinite spectral problem for high order differential operator pencil with complex periodic coefficients International Conference on Mathematical Physics and Its Applications, Samara, Russia, September 8–13, 200834. R. F. Efendiev SPECTRAL ANALYSIS OF ONE CLASS OPERATOR PENCIL WITH BARRIER POTENTIAL İntegral and differential operators and their applications. An international conference in honour of profş Stefan Samko. June 30July 2, 2011 35. R. F. Efendiev Wave propagation in onedimensional layeredinhomogeneous medium IV Congress of the TWMS, Azerbaijan , Baku, June 30 July 2, 2011 

Membership with international and foreign scientific organizations  Europe expert of the mathematics society
Expert of the Elsevier 

Pedagogical activity  25 year  
Other activities  
Awards and prizes  
Main place of work and its address  Baku State University Academic Zahid Khalilov street, 23.  
Position  docent  
Office phone  
Mobile  (+994 50) 3262030  
Home phone  (+994 12) 4779591  
Fax  
rakibaz@yahoo.com 