编前语:“如果把‘庞加莱猜想’比作长江、黄河的话,那么哥德巴赫猜想只能算是一条比较小,但是很漂亮的河。”美国数学大师丘成桐教授说。然而正是这个复杂庞大的数学难题,却被中国人破解——他们是广东中山大学教授朱熹平和旅美华人数学家、清华大学兼职教授曹怀东! Preface: “If we compare Poincaré to the Yangtze and the Yellow River, Goldbach’s conjecture can only be regarded as a relatively small but very beautiful river,” said Professor Yau Cheng-chiu, a maths major in the United States. However, it is this complex and mammoth problem that has been solved by Chinese people - they are Professor Zhu Xi-ping of Sun Yat-sen University in Guangdong and Chinese mathematician of the United States in traveling to China, and Cao Huai-dong, an adjunct professor at Tsinghua University!