Building-up Differential Homotopy Theory,  2023

We are pleased to announce 3rd workshop on Diffeology and its relationship with homotopy theory, from 5th to 8th of March, 2023 at Aizu Wakamatsu, Japan.

In early 70's, Kuo-Tsai Chen introduced an iterated integrals to study de Rham cohomology of the loop space of a manifold, and showed that his idea brings a smoothness structure on any topological space or even a set by using a convex body.

In late 70's, Jean-Marie Souriau gave a more sophisticated idea of smoothness on a set, using an Euclidean domain instead of a convex body, which is now known as Diffeology.  In this context, many interesting ideas are developed and studied.

The main purpose of our workshop is to provide an opportunity for topologists to communicate with each other to find out a way to build up differential homotopy theory.  We are encouraging young researchers to join us.


This workshop is supported by Grant-in-Aid for Challenging Research (Pioneering) JP20K20424 (Katsuhiko Kuribayashi) and Grant-in-Aid for Challenging Research (Exploratory) JP18K18713 (Norio Iwase) from JSPS.


Building-up Differential Homotopy Theory at Aizu, 2023


Lecture Theate, Lecture Hall

The University of Aizu,

Aizu Wakamatsu, Japan


  1. -Hiroshi Kihara

  2. -Katsuhiko Kuribayashi

  3. -Norio Iwase

Student Staff

  1. -Itsuki Takahashi

  2. -Hitomi Sudou

  3. -Shun Kugimiya


Mt. Aizu Bandai-san from the lake Inawashiro-ko

(from Utsukushima Kanko Photo Album)