was a Japanese mathematician at

Kyoto University , or , is a National university, national research university in Kyoto, Japan. Founded in 1897, it is one of the former Imperial Universities and the second oldest university in Japan. The university has ten undergraduate faculties, eighteen gra ...

working in

analysis Analysis (: analyses) is the process of breaking a complex topic or substance into smaller parts in order to gain a better understanding of it. The technique has been applied in the study of mathematics and logic since before Aristotle (38 ...

and

topology Topology (from the Greek language, Greek words , and ) is the branch of mathematics concerned with the properties of a Mathematical object, geometric object that are preserved under Continuous function, continuous Deformation theory, deformat ...

. He suggested the

Lakes of Wada In mathematics, the are three disjoint set, disjoint connected set, connected open sets of the plane (geometry), plane or open unit square with the counterintuitive property that they all have the same boundary (topology), boundary. In other wor ...

to Kunizo Yoneyama, who wrote about them and named them after Wada.

Publications

References

* * 1882 births 1944 deaths 20th-century Japanese mathematicians {{Japan-mathematician-stub