Press Release: Dr. Kenta Ozeki awarded the 2023 Hall Medal of the ICA
For immediate release Contact:
Sarah Heuss, Secretary of the ICA
June 4, 2024 Email: sarah.heuss@gmail.com
url: the-ica.org
Dr. Kenta
Ozeki awarded the 2023 Hall Medal of the ICA
Hall Medals recognize extensive quality research with substantial international impact by
Fellows of the ICA in mid-career.
Kenta Ozeki has made deep contributions in the
field of structural and topological graph theory. He has obtained a number of
important results and solved several long-standing conjectures and problems.
His penetrating insight has enabled him to make new discoveries in subjects
which have already been thoroughly studied. For example, inspired by Fisk’s
seminal result that all the
3-edge-colorings of a cubic
bipartite planar graph are Kempe equivalent, Mohar raised the problem of
characterizing the cubic bipartite graphs that have exactly one Kempe
equivalence class. Though many people thought it was an extremely difficult
task, Kenta made a breakthrough and solved the problem for projective planar
graphs. He also proved Dean’s conjecture that every 4-connected projective
planar graph is Hamiltonian-connected, combining Thomassen’s result that every
4-connected planar graph is Hamiltonian-connected and the result by Thomas and
Yu that every 4-connected projective planar graph is Hamiltonian.
Kenta Ozeki is a graduate of Keio University,
earning his Doctoral degree in 2009, and after working as a Research Fellow at
National Institute of Informatics in Japan, he joined the faculty of Yokohama
National University in 2017. Since 2006, he has published 105 papers. At the
age of 40, he is Associate Editor-in- Chief of Graphs and Combinatorics, which
strongly indicates his deep and broad knowledge of graph theory.
The Institute of Combinatorics and its Applications is an international
scholarly society that was founded in 1990 by Ralph Stanton; the ICA was
established for the purpose of promoting the development of combinatorics and
of encouraging publications and conferences in combinatorics and its
applications.
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