Leetsch C. Hsu
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Leetsch C. Hsu
Xu Lizhi (; 23 September 1920 – 11 March 2019), better known as Leetsch Charles Hsu, was a Chinese mathematician and educator. He co-founded the Department of Mathematics of Jilin University and founded the Institute of Applied Mathematics and the ''Journal of Mathematical Research with Applications'' at the Dalian University of Technology. Together with American mathematician Henry W. Gould, he established the Gould–Hsu Matrix Inversion Formula in 1973. Early life and education Hsu was born on 23 September 1920 in Zhangjiagang, Jiangsu, Republic of China. His original name was Xu Quanyong (). Hsu studied at Jiangsu Provincial Luoshe Normal School before the outbreak of the Second Sino-Japanese War. In 1940, he passed the entrance examination for the temporary National Southwestern Associated University formed by Tsinghua University, Tsinghua and other universities in Kunming, and studied mathematics under Hua Luogeng and Pao-Lu Hsu. Upon graduation in 1945, he was hired b ...
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Xu (surname 徐)
Xu () is a Chinese surname, Chinese-language surname. In the Wade-Giles system of Romanization of Chinese, romanization, it is spelled as "Hsu", which is commonly used in Taiwan. It is different from Xu (surname 許), represented by a different character. Variations in other Chinese varieties and languages In Wu Chinese including Shanghainese, the surname 徐 is transcribed as Zee, as seen in the historical place name Zikawei in Shanghai (Xujiahui in Pinyin). In Gan Chinese, it can be spelled Hi or Hé. In Cantonese, 徐 is often transcribed as Tsui, T'sui, Choi, Chui or even Tsua. In modern Vietnamese language, Vietnamese, the character 徐 is written Từ and Sy when migrating to the English-speaking World, particularly the United States. Other spellings include Hee and Hu. In Japanese language, Japanese, the surname 徐 is transliterated as Omomuro (kunyomi) or Jo (onyomi or Sino-Japanese). In Korean, 徐 is romanized as Seo in the Revised Romanization of Korean and writt ...
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