Ri Song Il, PhD and researcher at the mathematics faculty of the University of Sciences, is one of the competent scientists produced by the university.
Born into an ordinary farmer’s family in Kumya County of South Hamgyong Province, Ri had a special interest in math when he was young.
“Song Il was good at studies, especially math. His performance was always excellent enough to amaze me. So I would tell him to be a ‘doctor in mathematics’ in the future,” said Yun Myong Chun, his teacher at the then Songje Primary School in the county.
He enrolled at the University of Sciences, an institution for training talents in the basic science field, and majored in mathematics. After completing his university and postgraduate courses, he has been engaged in education and scientific research at its math faculty since 2001.
In those years, he independently presented “A new fixed point theorem in the fractal space” and authored more than 20 scientific papers of great academic significance including “A new idea to construct fractal interpolation curve”. He was awarded the February 16 Science and Technology Prize in 2016, the top honour which is conferred on top scientists and technicians in the DPRK.
He accepted the request from a famous international mathematics journal to be its critic in April 2016 and commented on dozens of papers published at different SCI-level magazines in different countries. He also examined some papers at the solicitation of several prestigious international journals and offered his opinions to the related magazines.
In particular, he developed a theory on nonlinear fractal interpolation for the first time in the world.
The theorem he presented in his “A new fixed point theorem in the fractal space”, which was carried in a renowned journal published by the royal mathematics association of the Netherlands in 2016, has been dubbed “Ri’s contraction mappings” and “Ri’s fixed point theorem” in the papers foreign scientists published in journals since 2018.
His 18-year-old son is now studying at his university.
More From Pyongyang Times
The Israeli war maniacs made an air raid on Doha, the capital of Qatar, on September 9. The Israeli authorities declared that it
September 15, 2025
The Israeli war maniacs made an air raid on Doha, the capital of Qatar, on September 9. The Israeli authorities declared that it
The Tonghungsan ginkgo tree at the foot of Mt Tonghung in Hamhung, South Hamgyong Province, was planted in around 1600.The tree is
September 15, 2025
The Tonghungsan ginkgo tree at the foot of Mt Tonghung in Hamhung, South Hamgyong Province, was planted in around 1600.The tree is
Kim Yo Jong, deputy department director of the Central Committee of the Workers' Party of Korea, issued the following press
September 15, 2025
Kim Yo Jong, deputy department director of the Central Committee of the Workers' Party of Korea, issued the following press
Modern high-rise apartment houses have newly been built in Wonsan City, Kangwon Province. Hundreds of dwelling houses, service
September 15, 2025
Modern high-rise apartment houses have newly been built in Wonsan City, Kangwon Province. Hundreds of dwelling houses, service
Choe Ryong Hae, member of the Presidium of the Political Bureau of the Central Committee of the Workers' Party of Korea and
September 15, 2025
Choe Ryong Hae, member of the Presidium of the Political Bureau of the Central Committee of the Workers' Party of Korea and
Pak Jong Chon, vice-chairman of the Central Military Commission of the Workers' Party of Korea, on September 13 issued the
September 15, 2025
Pak Jong Chon, vice-chairman of the Central Military Commission of the Workers' Party of Korea, on September 13 issued the
A meeting of service personnel of the Ministry of Public Security was held on the top of Mt Paektu, the sacred mountain of the
September 15, 2025
A meeting of service personnel of the Ministry of Public Security was held on the top of Mt Paektu, the sacred mountain of the
The US state secretary issued a statement on September 4 to declare that the US will launch counterattack against the influence of
September 14, 2025
The US state secretary issued a statement on September 4 to declare that the US will launch counterattack against the influence of
The US history of aggression against Korea started with the intrusion of the aggressor ship General Sherman. The United States of
September 14, 2025
The US history of aggression against Korea started with the intrusion of the aggressor ship General Sherman. The United States of
Socialism built by intention and will of people To build socialism where the people are masters was the ideal the Workers’ Party
September 14, 2025
Socialism built by intention and will of people To build socialism where the people are masters was the ideal the Workers’ Party
The Pyongyang Kim Jong Suk Textile Mill has finished the third-stage production of school uniform cloth for this year. The mill
September 14, 2025
The Pyongyang Kim Jong Suk Textile Mill has finished the third-stage production of school uniform cloth for this year. The mill
Russian Foreign Minister Sergey Lavrov referred to the anti-Russia manoeuvres of the West, etc. as he made a speech in front of
September 13, 2025
Russian Foreign Minister Sergey Lavrov referred to the anti-Russia manoeuvres of the West, etc. as he made a speech in front of
A meeting took place on the spot on September 11 to convey a congratulatory message from the Central Committee of the Workers'
September 13, 2025
A meeting took place on the spot on September 11 to convey a congratulatory message from the Central Committee of the Workers'
Pak Thae Song, member of the Presidium of the Political Bureau of the Central Committee of the Workers' Party of Korea and premier
September 13, 2025
Pak Thae Song, member of the Presidium of the Political Bureau of the Central Committee of the Workers' Party of Korea and premier
The Samchong Mine under the Sangwon Cement Complex was selected as one of the top ten enterprises in 2024. The mine set the
September 13, 2025
The Samchong Mine under the Sangwon Cement Complex was selected as one of the top ten enterprises in 2024. The mine set the
The World Health Organization and the United Nations Children’s Fund issued a joint report on the occasion of World Water Week
September 12, 2025
The World Health Organization and the United Nations Children’s Fund issued a joint report on the occasion of World Water Week
Mass rallies were held in provinces to adopt letters of loyalty to the respected Comrade Kim Jong Un on the occasion of the 80th
September 12, 2025
Mass rallies were held in provinces to adopt letters of loyalty to the respected Comrade Kim Jong Un on the occasion of the 80th
The Workers' Party of Korea's policy on rural construction unfolded a new scene of a modern socialist rural village also at the
September 12, 2025
The Workers' Party of Korea's policy on rural construction unfolded a new scene of a modern socialist rural village also at the
Kim Jong Un, president of the State Affairs of the Democratic People's Republic of Korea, received a congratulatory message from
September 12, 2025
Kim Jong Un, president of the State Affairs of the Democratic People's Republic of Korea, received a congratulatory message from
New houses have been built in the villages of workteams Nos. 1 and 2 of the Kumya Farm in Changsong County, North Phyongan
September 11, 2025
New houses have been built in the villages of workteams Nos. 1 and 2 of the Kumya Farm in Changsong County, North Phyongan
More Articles
