Masanori Morishita is professor of mathematics at Kyushu University, Fukuoka Japan. He is one of the primary pioneers who established "Arithmetic Topology"-- a new branch of mathematics which is focused upon the analogy between knot theory and number theory. He authored the first systematic treatment of the subject in the book "Knots and Primes" (Universitext) published from Springer in 2012. Since 2009, he has organized a series of international annual meetings "Low dimensional topology and number theory" that enhances the community of mathematicians in the world who contribute to the active frontiers of the promising area interacting with topology and number theory. Hiroaki Nakamura is professor of mathematics at Osaka University, Osaka Japan. He is a world-leading figure in anabelian geometry and Galois-Teichmüller theory in arithmetic algebraic geometry. He is known as the first person who made a break-through on Grothendieck's conjecture in anabelian geometry by solving it in the case of genus 0, and he was awarded Autumn Prize of the Mathematical Society of Japan. His outstanding contributions to mathematics are cross over number theory, algebraic geometry and topology.

He is also an organizer of the international annual meetings "Low dimensional topology and number theory" and is enrolled in the scientific committee of "LPP-RIMS Arithmetic and Homotopic Galois Theory"-- CNRS France-Japan International Research Network. Jun Ueki is a senior lecturer of mathematics at Ochanomizu University, Tokyo Japan. He is an active researcher, who is leading the young generation, in arithmetic topology. He made a pioneering contribution on a topological idelic theory for 3-manifolds, and his notable works range over arithmetic topology of branched covers of 3-manifolds in connection with Iwasawa theory, the profinite rigidity of twisted Alexander invariants, and modular knots. He is also an organizer of the international annual meetings "Low dimensional topology and number theory".