Friday, September 30, 2011

Danh sach NV3 DH Phu Yen





Danh sach NV3 DH Cong nghiep Viet Tri





Danh sach NV3 CD Kinh te-Ky thuat Can Tho





Danh sach nop nguyen vong 3 DH Tien Giang





Danh sach NV3 Cao dang Su pham Quang Tri





Thursday, September 29, 2011

INFINITY by Hojoo Lee, Tom Lovering, and Cosmin Pohoat



The International Mathematical Olympiad is the largest and most prestigious mathematics competition in the world. It is held each July, and the host city changes from year to year. It has existed since 1959. Originally it was a competition between  students from a small group of communist countries, but by the late 1960s, social-democratic nations were starting to send
teams. Over the years the enthusiasm for this competition has built up so much that very soon (I write in 2008) there will be an IMO with students participating from over 100 countries. In recent years, the format has become stable. Each nation can send a team of up to six students. The students compete as individuals, and must try to solve 6 problems in 9 hours of examination time, spread over two days. The nations which do consistently well at this competition must have at least one (and probably at least two) of the following attributes:
(a) A large population.
(b) A significant proportion of its population in receipt of a good education.
(c) A well-organized training infrastructure to support mathematics competitions.
(d) A culture which values intellectual achievement.

Alternatively, you need a cloning facility and a relaxed regulatory framework. Mathematics competitions began in the Austro-Hungarian Empire in the 19th century, and the IMO has stimulated people into organizing many other related regional and world competitions. Thus there are quite a few opportunities to take part in international mathematics competitions other than the IMO. The issue arises as to where talented students can get help while they prepare themselves for these competitions. In some countries the students are lucky, and there is a well-developed training regime. Leaving aside the coaching, one of the  most important features of these regimes is that they put talented young mathematicians together. This is very important, not just because of the resulting exchanges of ideas, but also for mutual encouragment in a world where interest in mathematics is not always widely understood. There are some very good books available, and a wealth of resources on the internet, including this excellent book Infinity. The principal author of Infinity is Hojoo Lee of Korea. He is the creator of many beautiful problems, and IMO juries have found his style most alluring. Since 2001 they have chosen 8 of his problems for IMO papers. He has some way to go to catch up with the sage of Scotland, David Monk, who has had 14 problems on IMO papers. These two gentlemen are reciprocal Nemeses, dragging themselves out of bed every morning to face the possibility that the other has just had a good idea. What they each need is a framed picture of the other, hung in their respective studies. I will organize this.

Link download:DOWNLOAD BOOK

Chuyen de luyen thi dai hoc: Phuong trinh duong thang trong mat phang




Link download:DOWNLOAD BOOK

Danh sach NV3 Dai hoc Hung Vuong 2011



Danh sach NV3 Dai hoc Quoc te Hong Bang 2011



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