EXCHANGE

"The Sarajevo - Several Peoples - Single Dream Symposium"

**Hajrudin Fejzic**

Hajrudin Fejzic received his B.S. degree in 1987 from the University of Sarajevo. Hajrudin received his Ph.D. from the Michigan State University, in 1992 under the supervision of C. Weil. Since 1993, he is teaching at California State University San Bernardino. His primary research area is on differentiation properties of real valued functions in one and several variables. In addition, he has written papers covering topics on convex functions, measure theory, numerical integration and number theory. Hajrudin is 2012 recipient of the Andy award.

**List of selected publications:**

- joint with Zivojevic, F.
*Inequalities for convex functions*. Sarajevo Math. 9(22) (2013), no. 2, 187?195. 26A51 - joint with Weil, C.
*A property of Peano derivatives in several variables*. Proc. Amer. Math. Soc. 141 (2013), no. 7, 2411?2417. - joint with Freiling, C.; Rinne, D.
*Linear recurrence relations on measurable sets*. J. Lond. Math. Soc. (2) 82 (2010), no. 3, 717?732. - joint with Svetic, R. E.; Weil, C.
*Differentiation of n-convex functions*. Fund. Math. 209 (2010), no. 1, 9?25. *Numerical integration of functions given by data points*. Sarajevo J. Math. 4(16) (2008), no. 1, 31?38.- joint with Ash, J. M.
*Approximate and Lp Peano derivatives of nonintegral order*. Studia Math. 170 (2005), no. 3, 241?258. *Infinite approximate Peano derivatives*. Proc. Amer. Math. Soc. 131 (2003), no. 8, 2527?2536. 26A24 (26A21)- joint with Ciesielski, K.; Freiling, C.
*Measure zero sets with non-measurable sum*. Real Anal. Exchange 27 (2001/02), no. 2, 783?793. 28A05 (26A21) - joint with Rinne, D.; Weil, C.
*Extending n times differentiable functions of several variables*. Czechoslovak Math. J. 49(124) (1999), no. 4, 825?830. 26B05 *On thin sets of circles*. Amer. Math. Monthly 103 (1996), no. 7, 582?585. 28-01 (28A80)*Convex functions and Schwarz derivatives*. Proc. Amer. Math. Soc. 123 (1995), no. 8, 2473?2477. 26A51- joint with Weil, C.
*Repairing the proof of a classical differentiation result*. Real Anal. Exchange 19 (1993/94), no. 2, 639?643. 26A24