On the campuses of various colleges and universities in Yanjing, and even in various colleges and universities across the country, the matter of Han Sen is always a hot topic of discussion for students.

At present, the most discussed on various campuses is the BMW 7 series that often appears on the campus of Tsinghua University, the six students of Academician Han Sen, each of whom has a BMW car, has become a hot topic among students for a while, they are very yearning for BMW cars, and the proud students have not yet set foot in the society, and do not know the distance of BMW cars, so what they yearn for is not BMW cars, but the identity of Academician Han Sen's students represented by BMW cars.

Slowly, the BMW 7 Series has also developed into a standard car for Han Sen's future students, as for the car is too expensive to afford? There is no such thing, every student who follows Han Sen can become a billionaire while studying.

.......

Zhang Bin, Yao Ruzhi, Zhuang Wen, Qin Lan and Sha Ziyi, they didn't know that they had become the talk of the town because of their BMW, they had been very busy recently, no, it should be said that they had been busy every day since they followed Han Sen.

However, Han Sen always has magical powers, and he can always keep his students busy one by one.

Han Sen threw his finished writing to these students to do the final sorting, and said that if the students did well, Han Sen would add their names to the writing team of the book.

In Han Sen's office, several students completely "occupied" this place, and read it over and over again like crazy, writing Han Sen's, the author of this book is Han Sen, but they can enter the writing group under Han Sen's name, which is a great temptation for them.

Han Sen's book is destined to be a textbook that affects the world, and this thick work of several hundred pages records Han Sen's major research on prime number theory from Mersen's prime, to twin prime, to Goldbach's conjecture, to pseudo-prime conjecture and then to Fermat's theorem.

This book is a study of number theory, and it completely puts the entire number theory solution program in front of the world, and this book is very qualified to be compared with it.

The author is Euclid, a mathematician in the early period of Alexandria, ancient Greece, who pioneered the use of axiomatic methods to establish a deductive system, which is also the main feature of this work.

The content of the middle school curriculum is basically the same as that of the middle school before 2000.

The publication of Han Sen's book will also be regarded as the beginning of a new era of mathematics and change the mathematics textbooks in various countries around the world.

Being able to enter the writing team of this book can leave a mark in the history of world mathematics.

Han Sen's digital students Yao Ruzhi, Zhuang Wen, Qin Lan, Sha Ziyi, and Zhang Bin, who had just transferred from economics to mathematics, all soaked in Han Sen's office all day as if they had been beaten with chicken blood.

In fact, this book has been sorted out very well, and several students have read it several times and have not found any problems, but in order to reflect their abilities, these students have really found good problems, and as soon as a few people discussed, they wrote after-class exercises at the back of each chapter, and the after-class exercises they were busy writing in the end were all killed by Han Sen.

But after that, several people were not convinced, and after the publication of Han Sen in the future, several people also jointly published one, and this exercise book became a headache for every future graduate mathematics first, second and third candidates.

In fact, Han Sen didn't expect a few students to sort out anything, Han Sen just asked them to take the opportunity to study hard, as for the name of the writing group, Han Sen would definitely add them to it, and even Kuang Tong, who was not involved in the collation, Han Sen planned to add Kuang Tong's name to the writing group.

This simple name doesn't matter if you read Han Sen, but it has extremely important life significance for several students.

Han Sen's office was occupied by Zhang Bin, Yao Ruzhi, Zhuang Wen, Qin Lan, and Sha Ziyi, and Han Sen was reluctant to disturb them. So Han Sen took Kuang Tong and found a classroom by the way, walked into the classroom, and at the end, the two began their respective work.

As the editor-in-chief of the Yellow Book of the World Economy, Han Sen also got Kuang Tong into the compilation team of the Yellow Book of the World Economy, of course, as for whether Kuang Tong's final paper can be included, it is not up to Han Sen to make a decision alone.

This yellow book of the world economy is divided into four parts:

In the first part, an essay written by Han Sen, who is the editor-in-chief, will be included here.

The second part is that there will be several specific research topics such as the analysis and outlook of the macroeconomic situation of the United States, Europe, Japan, Asia-Pacific, India, Russia, Latin America, West Asia and Africa, and China.

The third part is the review and prospect of the international trade situation, the review and prospect of the international financial situation in the previous year, the review and prospect of the international direct investment situation, the review and prospect of the international commodity market situation, the global capital flow under Hansen's cross-regional financial system, and the construction of the "Belt and Road".

The last part contains the history and outlook of Hansen's financial system, economic globalization under the new situation, global debt sustainability analysis, the economic decline of island countries in the context of global economic growth, world economic statistics and forecasts, and the appendix of world economic statistics.

Each research topic in this book is carried out by several scholars at the same time, and finally competes and compares, finds the most suitable selection from the research results of different researchers on the same topic, and finally integrates it into a yellow book.

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Kuang Tong's chosen research topic is the "Belt and Road" construction part, and his research topic is:

Although Kuang Tong is a student of Han Sen, and is the only economics student of Han Sen, Kuang Tong did not choose the research related to "Han Sen's cross-regional financial system", because Kuang Tong plans to enter the institutional system after graduation, and a beautiful "Belt and Road" research results will be Kuangtong's great capital.

Of course, Han Sen only introduced Kuang Tong into the writing team, and whether Kuang Tong's paper can be selected or not requires Kuang Tong to show his ability, and the ability here is not only manifested in the academic ability to write papers, but also in the grasp of the world political situation.