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Ukrainian mathematician Maryna Viazovska has won the Fields Medal, a Nobel Prize for mathematics. She is the second woman ever to receive the medal. Maryna solved a 400-year-old sphere packing problem.
Today she is teaching at a math summer school at our university KSE 1/
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twitter.com
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由
Tymofiy Mylovanov
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Friends,
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Friends,
Today is the National Flag Day in Ukraine!
Grateful to Ukrainian Defenders that it's our blue and yellow flag proudly waving over Ukrainian cities! And it will be raised over the entire free Ukraine!
Thankful to all our friends and allies who raise our flag with us!
时政
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twitter.com)
00:01:44
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