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The conference of "Mathematics in 21st Century: Advances and Applications" will be held at USTC on July 7-9, 2012. It will be part of the celebration of USTC 771-871-971 alumni reunion for their 30-20-10 anniversary of graduation. Alumni of all classes and friends are welcome to attend the conference and join other university celebration activities. The conference is sponsored by the School of Mathematical Sciences, USTC.