(Last updated : 2022-12-09 16:58:37)
  Hirata Yasushi
   Kanagawa University  Faculty of Engineering Department of Mathematics
   Associate Professor
■ Present specialized field
set-theoretic topology (Key Word:topological properties of products of ordinals) 
■ Book and Papers
1. Papers Equalities for the extent of infinite products and Σ-products  (Collaboration)  2022
2. Papers Inequality and equality for the extent of products with a special factor  (Collaboration)  2022
3. Papers Undecidability for the extent of products of a monotonically normal space and a special factor  (Collaboration)  2022
4. Papers A characterization of paracompactness of lexicographic products  (Collaboration)  2020
5. Papers A characterization of the countable paracompactness for products of ordinals  (Collaboration)  2020
All display(15)