Tolga Tezcan


Assistant professor of operations management

Simon Business School

University of Rochester



Contact Info

Email: tolga.tezcan at simon dot

Office: 3-345 Simon Hall

Simon Graduate School of Business

University of Rochester

305 Schlegel Hall, Rochester N.Y. 14627



Georgia Institute of Technology, Atlanta, GA. Ph.D. in Industrial and Systems Engineering, 2006.

Thesis title: State Space Collapse in Many-Server Diffusion Limits of Parallel Server Systems and Applications.


Georgia Institute of Technology, Atlanta, GA. M.S. in Mathematics, 2005.


Colorado State University, Pueblo, CO. M.S. in Industrial and Systems Engineering, 2001.

Thesis title: A Learning Automata Search Technique: Convergence Analysis and Numerical Results with Buffer Allocation in Production Lines.


Bilkent University, Turkey. B.S. in Industrial Engineering, 2000.


Research papers


1.    E. Pinker and T. Tezcan, Determining the optimal configuration of hospital inpatient rooms in the presence of isolation patients and technical appendix, to appear in Operations Research.

2.    G. Dobson, T. Tezcan, V. Tilson, Optimal Workflow Decisions for Investigators in Systems with Interruptions and technical appendix, Management Science, (59) 2013, 1125-1141.

3.    T. Tezcan, Stability analysis of N-model systems under a static priority rule, Queueing Systems, (73) 2013, 235-259.

4.    J. E. Reed, and T. Tezcan, Hazard Rate Scaling for the GI/M/n+GI Queue, Operations Research, (60) 2012, 981-995.

5.    T. Tezcan, Asymptotically Optimal Control of Many-server Heterogeneous Service Systems with $H_2^*$ Service Times, Queueing Systems, (71) 2012, 445-467.

6.    T. Tezcan and B. Behzad, Robust design and control of call centers with flexible IVR systems, MSOM 14 (2012), 386-401 .

7.    A.L. Stolyar T. Tezcan, Shadow routing based control of flexible multi-server pools on overload, Operations Research, (59) 2011, 1427-1444.

8.    J. G. Dai and T. Tezcan, State space collapse in many-server diffusion limits of parallel server systems, Mathematics of Operations Research, (36) 2011, 271-320.

9.    G. Baharian and Tolga Tezcan, Stability analysis of parallel server systems under longest queue first, Mathematical Methods of Operations Research (21 July 2011), pp. 1-23

10.  Gurvich, I., J. Luedtke, and T. Tezcan, Staffing Call-Centers With Uncertain Demand Forecasts: A Chance-Constraints Approach, Management Science, (56) 2010, 1093-1115.

11.  A.L. Stolyar and T. Tezcan, Control of systems with flexible multi-server pools: A shadow routing approach, Queueing Systems, (66) 2010, Page 1.

12.  J. G. Dai, S. He and T. Tezcan, Many-server diffusion limits for G/Ph/n+GI queues, Annals of Applied Probability, (20) 2010, 1854-1890.

13.  T. Tezcan and J.G. Dai, Dynamic Control of N-Systems with Many Servers: Asymptotic Optimality of a Static Priority Policy in Heavy Traffic, Operations Research, (58) 2010, 94–110.

14.  T. Tezcan, Instability of FIFO in a simple queueing system with arbitrarily low loads, OR Letters, (37) 2009, 312-316.

15.  J. G. Dai and T. Tezcan, Optimal Control of Parallel Server Systems with Many Servers in Heavy Traffic, Queueing Systems, (59), 2008, 95-134.

16.  T. Tezcan, Optimal Control of Distributed Parallel Server Systems under the Halfin and Whitt Regime, Mathematics of Operations Research, (33) 2008, 51-90.


1.    T. Tezcan and J. Zhang, Routing and staffing in customer service chat systems with impatient customers, 2013

2.    L. Cui and T. Tezcan, Approximations for chat service systems using many-server diffusion limits, 2013.



         Operations research meritorious service award, 2013

         2nd place in the best paper competition of Informs Section for Public Programs, Service, and Needs (SPPSN) for the paper

Determining the optimal configuration of hospital inpatient rooms in the presence of isolation patients with Edi Pinker

Career Award, NSF 2010


Current PhD students

         Rajan Balaraman (co-advised with A. Seidman)

         Leon Cui

         Ozlem Yildiz

         Arjun Sondhi