Sebastian Cioaba

Sebastian Cioaba is a Professor in the Department of Mathematical Sciences at the University of Delaware (UD), part of the College of Arts & Sciences. His research focuses on spectral graph theory, algebraic combinatorics, and their applications. He earned his Ph.D. from Queen’s University (2005) and joined UD in 2009 after postdoctoral work at UC San Diego and the University of Toronto. Cioaba has advised 8 Ph.D., 4 M.Sc., and numerous undergraduate researchers, with current advisees including John Byrne and Isabel Byrne. His work is supported by NSF, NSA, and international grants.

Education
- B.Sc. Mathematics & Computer Science, University of Bucharest (Undergraduate)
- Ph.D. Mathematics, Queen’s University (2005)

Research & Awards
- 2024 College of Arts & Sciences Award
- Co-editor of Discrete Mathematics and Linear Algebra and its Applications
- Over 70 publications and two books: A Bridge to Advanced Mathematics (2023) and A First Course in Graph Theory and Combinatorics (2022, 2nd ed.)

Teaching & Service
- Organized conferences in discrete mathematics
- Supervised over 25 undergraduate and high school students in research projects

Advising
- Current Ph.D. students: John Byrne, Isabel Byrne, Colby Sherwood
- Notable past advisees include Vishal Gupta (Ph.D. 2025, Rochester) and Dheer Noal (Ph.D. 2022, Memphis postdoc)