I am Associate Professor in the Department
of Mathematical Sciences at University
of Delaware in Newark,Delaware. I am interested in graph
theory and combinatorics
and their applications
to other areas of mathematics and science.
You can find our more about my work here
have an active Discrete
Mathematics group and we have a
Math Seminar. If you would
like attend or talk, please let me know.
enjoy working with undergraduate and
graduate students. If you are a student
who likes math, please drop by my office or
send me an email. I am supervising 3
Peng Xu (with Mokshay
Madiman), Matt McGinnis and Lorinda Leshock .
(Ricky) Li was my 3rd Ph.D.
student between 2011 and 2015. He
defended his Ph.D. Thesis Algebraic
methods in graph theory on May 18,
2015 and is now working for Google
Vermette was my 2nd Ph.D.
student between 2011 and 2015. He defended
his Ph.D. Thesis Spectral
and combinatorial properties of friendship
graphs, simplicial rook graphs and
extremal expanders on April 23, 2015
and has been a Tenure-Track Assistant
Baptist University since Fall
was my 1st Ph.D. student between 2010 and
2013. He defended his Ph.D. Thesis Spanning
toughness and eigenvalues of graphs on
March 12, 2013 and is
a Lecturer at the University
was my first M.Sc. student between 2010 and
2011. He defended his M.Sc. Thesis The
Alon-Saks-Seymour and Rank-Coloring
Conjectures on April 20, 2011,
finished his Ph.D. in 2016 at the University
of California at San Diego and
is an NSF postdoc at
have also supervised the summer research of
some bright undergraduate students: Michael Tait,
Devlin, Dajun Lin,
Markiewitz and Alexandra
Sampugnaro, Emma Kulek,
Yi Zhang and Briana Lamet.
I was an NSERC
Fellow at University
of Toronto (June-December
2008, my mentor was Mike
Molloy) and at University
of California at San Diego
(February 2006-June 2008, my mentor was Fan
Chung). I had obtained a Ph.D. in
Math at Queen's
University at Kingston,
in 2006, a M.Sc. in Math at Queen's
in 2002 and a B.Sc. in Math/Computer
Science at University
of Bucharest, Romania
in 2000. My Ph.D. advisors were: David
David Wehlau. My
M.Sc. advisor was Dom
de Caen and my B.Sc. advisor was Ioan Tomescu.
See some of our work here.
At Queen's, I used to play soccer with the
famous (at least on a 1/4 mile radius around
Queen's campus) Mel's
Angels. It must have been because
found it amusing
to write this
about my soccer skills.