Takeuchi, Hiroshi http://orcid.org/0000-0001-8695-1883
Funding for this research was provided by:
Japan Science and Technology Agency CREST (Mathematics 15656429)
Japan Society for the Promotion of Science (KAKENHI Grant Number 16J03138)
Japan Society for the Promotion of Science (KAKENHI Grant Number 19KK0068)
Article History
Received: 11 December 2019
Accepted: 5 January 2021
First Online: 4 March 2021
Compliance with ethical standards
:
: The author declares that no conflict of interest exists related to this report or the study it describes.