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Symmetry: A Journey into the Patterns of Nature, by Marcus du Sautoy
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Symmetry is all around us. Of fundamental significance to the way we interpret the world, this unique, pervasive phenomenon indicates a dynamic relationship between objects. Combining a rich historical narrative with his own personal journey as a mathematician, Marcus du Sautoy takes a unique look into the mathematical mind as he explores deep conjectures about symmetry and brings us face-to-face with the oddball mathematicians, both past and present, who have battled to understand symmetry's elusive qualities.
- Sales Rank: #874595 in Books
- Published on: 2009-03-03
- Released on: 2009-03-03
- Original language: English
- Number of items: 1
- Dimensions: 8.00" h x .86" w x 5.31" l, .60 pounds
- Binding: Paperback
- 384 pages
From Publishers Weekly
When most of us think of symmetry, we think of looking into a mirror or playing patty-cake with a child. As Oxford don du Sautoy (The Music of the Primes) tells readers, this is only the tip of the triangle in the mathematical realms of symmetry, where symmetrical objects exist in dimensions far beyond our ability to imagine. The author takes readers gently by the hand and leads them elegantly through some steep and rocky terrain as he explains the various kinds of symmetry and the objects they swirl around. Du Sautoy explains how this twirling world of geometric figures has strange but marvelous connections to number theory, and how the ultimate symmetrical object, nicknamed the Monster, is related to string theory. This book is also a memoir in which du Sautoy describes a mathematician's life and how one makes a discovery in these strange lands. He also blends in minibiographies of famous figures like Galois, who played significant roles in this field. This is mainly for science buffs, but fans of scientific biographies will also find it appealing. B&w illus. (Mar.)
Copyright © Reed Business Information, a division of Reed Elsevier Inc. All rights reserved.
From Booklist
Du Sautoy specializes in symmetry, and that concept is instantly visualized in the tiling of the Moorish Alhambra Palace, which initiates his tour through the history and ideas of his mathematical subject. This accessible introduction makes for a shrewd start, for, as seems congenital with mathematicians and their abstract pursuits, du Sautoy takes symmetry in this work to the nth degree—specifically, to the 196,883d dimension. But far from stumping his readers, the author inveigles them with clarity about symmetry’s foundational concepts, cast of mathematical heroes, and wry portrayals of the quirky personalities among his contemporary colleagues in group theory, as symmetry is technically called. The package works as well here as in his highly praised The Music of the Primes (2003), with the addition of imparting the personal frisson of making a mathematical discovery. Relating his triumphs, confiding his worry about whether, at age 40, he’s still got the creative spark, du Sautoy well demonstrates that whatever discoveries he has yet to make, he’s able to engage general readers in the cerebral dramas of pure mathematics. --Gilbert Taylor
About the Author
Marcus du Sautoy is a professor of mathematics and the Simonyi Professor for the Public Understanding of Science at Oxford University. He is a frequent contributor on mathematics to The Times, The Guardian, and the BBC, and he lives in London.
Most helpful customer reviews
27 of 29 people found the following review helpful.
The Beauty and the "Monster" (Group Symmetry)
By WuBing
I read this book in 2 weeks, can't stop admiring the way the author managed to explain so many interesting modern math concepts in layman's terms. Below are some astonishing math knowledge which worth the book price you pay for.
1) Quintic Equation: Both Abel and Galois proved the quintic equations have no radical solutions. Abel proved 'No solution' by reductio ad absurdum; while Galois proved 'Why No?' with the beautiful Group Theory. How could a 19-year-old French boy thought of such grand math theory? It was a shame he was not recognised by the grand mathematicians like Cauchy, Gauss, Fourier, etc. He wrote the Group Theory down the night before his deadly duel and scribbled "Je n'ai pas le temps" (I have no time)... it took another 10 years for Group Theory to be rediscoverd by Prof Liouville of the Ecole Polytechniques (whose ignorant examiners ironically failed Galois twice in Entrance Concours Exams).
2) Moonshine: Monster Group dimensions (dj) & relationship with Fourier expansion of coefficients (cj) in Modular Function (page 333):
x^-1 + 744+196,884x + 21,493,760 x^2 + 864,229,970x^3 +...
cn= c1+c2+...cn-1 + dn
where d1 = 196,883
d2 = 21,296,876
d3 = 842,609,326
and c1 = 1+ d1 = 196,884
c2 = c1+d2 = 21,493,760
c3 = c1 + c2 + d3 = 864,229,970
What a coincidence! no wonder Conway said this discovery was the most exciting event in his life.
3) 'Atlas of Finite Group': the book covered the insider story of the 5 Cambridge mathematicians led by Conway, in an attempt to create the 'Periodic Table' of Group's building blocks (Monster Group is the last one).
3) Icosahedron symmetry (20-sided polygon of triangular faces): this is the way viruses 'trick' our body cells to reproduce for them, by this deadly icosaherdon beauty. In nature, bees are tricked by flowers' symmetry. In human, we are 'tricked' by opposite sex's body symmetry:)
4) Arche de la Defense @ Paris: a Hypercube architecture (cube of 4-dimensions), shows us we can visualize 4-dimension objects in our 3-dimension world.
5) Chap 7 (Revolution) compared the Anglo-Saxon and French Math culture:
"Anglo-saxon temperament tend towards the nitty-gritty, revelling in strange examples and anomalis. The French, in contrast, love grand abstract theories and are masters at inventing language to articulate new and difficult structures." I agreed, having been taught in anglo-saxon (UK, USA) math before entering into French Grande Ecole (Engineering University), I found great difficulty to compete with French classmates in abstract math, but beat them in applied math by my high-school 'anglo-saxon' math training. You notice France has never won IMO Math Olympiad Championship like USA, China do, but France invented most of the modern algebra and modern analysis.
Conclusion:
This book is a grand-tour of the most exciting modern math - Group Theory. For all math students who hate reading the boring abstract modern math textbooks, you will be 'hooked' by the underlying beauty of modern math after reading du Sautoy's Symmetry.
Bon Courage!
40 of 45 people found the following review helpful.
What Do Mathematicians Do?
By Rob Hardy
Symmetry is something that is easy for us to appreciate. It might be that we have an evolutionary taste for symmetric creatures; we suspect there is something wrong if a horse has an uneven gait, and it has been shown that we prefer symmetric faces. Of course symmetry is part of our art and architecture. So it is an inherently interesting subject for everyone, but mathematicians have taken the study of symmetry to heights that the rest of us can barely imagine. One of those mathematicians is Marcus du Sautoy, who has shown in his previous _The Music of the Primes_ that he has the capability of descending from the mathematical summits enough to have readers understand a bit of what mathematicians do. Now in _Symmetry: A Journey into the Patterns of Nature_ (Harper), du Sautoy has told the story of a mathematical quest that has gone on for centuries and which, it seems, was essentially completed in the 1980s. There are lots of different symmetries, some of which have complicated ways of being manipulated in dimensions higher than anyone will ever be able to depict. To prove that every single symmetry has been mathematically classified was a real triumph of a branch of mathematics known as Group Theory. The scale of the triumph only mathematicians will come close to fully understanding, but the rest of us can get an idea of how monumental a victory this was from du Sautoy's engaging look at how the job was done.
Imagine an equilateral triangle. You can leave it where it is, or you can rotate it around by a third, or by two thirds, and it looks just the same. You can flip it around three different axes, and it looks the same. Those are its six symmetries. The Greeks were fascinated with the symmetry of solid figures, the Muslims with that of tiles and plane figures. But shapes and tilings are not all there is to symmetry; different ways of shuffling a pack of cards have symmetry, as does the number lock on a piece of luggage. The change ringers who team up to ring five bells in the exactly 120 different orders in which five bells can be rung are performing a symmetrical operation. There are symmetries of many properties of matter and physics, and it might be that they will help explain string theory. Indeed, the great story here is that like prime numbers, symmetric groups are at the heart of the mathematics of our universe, but unlike prime numbers, there is only a finite number of symmetries, and they have all now been found. It was thought in the 1920s that group theory had reached a dead end and there were no further families of symmetry to be found. But in 1965, a new group was found that didn't fit into any of the previous families, and like the athletes who found themselves able to do a four minute mile once one person had done so, mathematicians were inspired by this discovery into finding further such groups. The largest of the groups is called the Monster. "The Monster is like some huge, great symmetrical snowflake that you can see only when you get to 196,883-dimensional space," says John Horton Conway, one of the heroes of the quest described here. Forget the six symmetries of that equilateral triangle; there are more symmetries in the Monster than there are atoms in the Sun. Even more wonderful is that there are mathematicians like Conway who somehow can picture such an object in their minds, and have included it and all the other possible symmetries in the massive, inclusive _Atlas of Finite Groups_. If the math (even at the level of this popularization) gets dense, there are always funny stories about mathematicians, who are often just as strange as you would expect such eggheads to be.
Symmetries is not a textbook on symmetry, and the concepts here require not only textbooks but mathematical textbooks, textbooks only a few people, even a few mathematicians, are ever going to read. What du Sautoy has done is to give a feeling of the importance of the hunt and the excitement of it. He has also done readers the service of explaining just what a mathematician does. "Many of my friends have the impression that I'm sitting in my office doing long division to a lot of decimal places, and wonder why a computer hasn't put me out of a job by now." It is hunting for patterns and discovering them that keeps him going. The twelve chapters here not only go through the history of group theory but each tells of a month in his life, the joys and frustrations of mathematical research, of mathematical teamwork and competition, or of the push to publish one's ideas. Maybe you will never master group theory, but if you want to know what mathematicians do, and why it is important, this is a wonderful guide.
17 of 17 people found the following review helpful.
Good book, worth reading.
By Farseem Mohammedy
This is overall a good book. The author devoted one full chapter on the obvious geometric symmetry studies in the walls and floors of the Spanish Al-Hambra palace in Granada. Then he slowly develops the Galois group theory and the more abstract part of the symmetry. He continues his discussions on the various parts of his research life, his collaborations, conferences, his digressions into Japanese episodes, how he feels about his students (his "mathematical children") etc. This is in contrast with Hermal Weyl's famous "Symmtery" book published many years ago. In this book, the author depicts a personal journey into the abstract beauty of mathematical symmetry, how he entangles problems in group theory in his own research. This personal journey is juxtaposed with historical figures like Galois, Cauchy, Abel, Lie and their stories of making key contributions to the field of group symmetry studies. Not only the past giants, but also recent luminaries are also mentioned as studies in mathematics of group symmetry is an ongoing process. Any scientific endeavour should not be completely decoupled from personal struggles, since this is the person that drives the passion of originality. For impersonal accounts, there are the corpus of journal papers. But it is also instructive to see what and how the person felt at the 'moment of epiphany'. This book is for sure not meant for an expert's reading. It is meant for budding mathematicians, to motivate their interest in mathematics. This book should be of general interest to the layperson having some sort of math background.
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