Copies of the official paper of the Guangxi Zhuang Autonomous Region Committee of the Communist Party of China are not usually a hot commodity.But the Saturday edition of Guangxi Daily became an overnight collector’s item after its front-page story on Wang Hong – who last week received the prestigious Fields Medal alongside her compatriot Deng Yu – went viral online.Wang, who hails from the southern region, took home the highest honour for mathematicians under the age of 40 on July 23. Both...