Complex sentence: Endre Süli is Professor of Numerical Analysis in the Mathematical Institute, University of Oxford, Fellow and Tutor in Mathematics at Worcester College, Oxford, and Supernumerary Fellow of Linacre College, Oxford.
Split into simpler sentences: Endre Süli is Professor of Numerical Analysis in the Mathematical Institute, University of Oxford. He is Fellow and Tutor in Mathematics at Worcester College, Oxford and Supernumerary Fellow of Linacre College, Oxford.