“Polya”写句子，用Polya造句

The Improved Proving of Polya-Szego Inequality and Integral Inequality;

当然还有其他关于数学解题的书，如数学教育家Polya 的经典之作《如何解题》，我参加奥林匹克数学竞赛时曾从中获益非浅。

The Integral Form of Greub-Rheinboldt Inequality and Polya-Szego Inequality;