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{{About|the flag of the People's Republic of China since its creation in 1949|the flag of the Republic of China, commonly known as the flag of Taiwan|Fla ...html |script-title = zh:1949年9月27日 中华人民共和国国旗诞生 |trans-title = 27 September 1949: The Birth of PRC's Flag |website = CPC News |access-date = 4 November 2009 ...

| birth_date = {{Birth date and age|1949|2|6}} ...ко}}, born February 6, 1949) is a Soviet and Russian mathematician working in [[geometry]], [[topology]], [[combinatorics]] and [[mathematical physics]]. ...

| caption = Dent in 1928 | alt = Black and white picture of Beryl May Dent, taken in 1928, seated front row, from a group photograph of the other staff (not sho ...