Complex sentence: He earned a 1992 Ph.D in Mathematical Physics from the Mathematics Department of Harvard University and has since held a Lady Davis Fellowship in the Racah Institute of Physics at Hebrew University, a National Science Foundation fellowship in the mathematics department of Massachusetts Institute of Technology.
Split into simpler sentences: He earned a 1992 Ph.D in Mathematical Physics from the Mathematics Department of Harvard University. He has since held a Lady Davis Fellowship in the Racah Institute of Physics at Hebrew University, and a National Science Foundation fellowship in the mathematics department of Massachusetts Institute of Technology.