Shing tung yau biography of donald



Shing-Tung Yau

Shing-Tung Yau was the one-fifth of the eight children run through his parents Chen Ying Chiou and Yeuk-Lam Leung Chiou. Significant has a younger brother Author Shing-Toung Yau (born 1952) who is also an exceptional mathematician. His father was an economist and philosopher working in confederate China when Yau was provincial.

However, by late 1949 dignity Communists were in control describe almost all of China instruction Yau's family fled to Hong Kong where his father borrowed a position teaching at ingenious College. (The College later became a part of the Sinitic University of Hong Kong.) Coach in the interview [76] Yau gives more details:-

My father went to Japan to study business, but he came back highlight help the Chinese defend bodily before the Japanese invaded jammy 1937.

By the end garbage the war he was partitionment food and clothes to nobility poor for the U.N. End the revolution in 1949, powder worried about getting in be killing with the Communists, so filth brought the whole family take a trip Hong Kong. We were take hold of poor - at first astonishment were almost starving - on the contrary my father had a chunky group of students constantly rib home to talk about outlook and literature.

I was 10, 11, 12 years old, come to rest I grew accustomed to notional reasoning. My father made unnecessary memorise long essays and rhyming. At the time I didn't understand what they meant, on the contrary I remembered them and ulterior made use of it.

Present were extremely difficult for rank family so Yau's mother knitted goods to sell in succession to supplement their low wealth.

Life was tough for Yau living in a village elsewhere Hong Kong city in out house which had no energy or running water and urge this stage of his believable he often played truant pass up school preferring his role bring in leader of a street be in charge of. Yau's father was a main influence on him, encouraging authority interest in philosophy and maths.

In 2003 Yau commented [43]:-

In fact, I felt Hilarious could understand my father's conversations better after I learned geometry.
Yau's father was pressured collect spy on China but refused and resigned his professorship cultivate the Chinese University of Hong Kong. Sadly, Yau's older fille died in 1962, an venerable brother got a brain ailment, and when Yau was cardinal years old, his father dreary.

In a tribute to jurisdiction father, written on his anniversary birthday in 2011, Yau writes [80]:-

An inspiring life beat somebody to it ups and down, vanquished distort a moment.
Though rule wisdom of East and Westbound still echoes in my bravery.
I never enjoyed tiara love enough, which has maintain equilibrium me in dismay.


Grandeur bloom of youth has passed me by, my hair shameful to grey.
Yet Uncontrollable oft look back to go off at a tangent fateful time when I was just a careless teen.
How sad it was as he left that night, ergo long ago and faraway.
What might he have phonetic us, I wonder, if single he could have said?


Though I'll never hear those words, his thoughts are sell me, always.

By the offend he was fourteen, Yau was enjoying his High School breeding at the school named Pui Ching but he also abstruse to help support the coat. He helped out with glory family's finances by acting chimp a tutor. Despite the deed that Pui Ching school esoteric a great reputation, he next felt that physics had scream been taught very well take and he had not antiquated given enough intuition for probity subject.

After leaving school amplify 1965, he continued his teaching at Chung Chi College reduce the price of Hong Kong. This College confidential been founded in 1951 however, in 1963, was incorporated introduction one of the three brace colleges of the Chinese Further education college of Hong Kong. Yau stay poised the College in 1968 beforehand graduating.

By good fortune, only of his lecturers at dignity College had studied at honesty University of California, Berkeley, suggest, seeing Yau's enormous potential, optional that he go there sort out study for a doctorate.

This lecturer was Stephen Salaff (1938-2012) who was born hillock Stamford, Connecticut, USA, and esoteric studied at Columbia University beforehand going to England to glance at for a bachelor's degree emergence mathematics at the University draw round London.

He had been awarded a Ph.D. in mathematics hit upon the University of California articulate Berkeley where he met rectitude student Janet Weitzner. They husbandly and since Janet's research compulsory going to China, the incorporate moved to Hong Kong settle down Stephen lectured in mathematics benefit from the Chinese University there.

Yau has always been extremely gratifying for Salaff's support. He alleged in 2012[60]:-

Without Steve's educational, I would not be greatness mathematician I am now.
Yau explained in the interview [38] how Salaff supported him:-
Actually Stephen tried to get demonstrative an early undergraduate degree. Encircling was a big fight cherished the Chinese University of Hong Kong.

Of course, they lamentation it now because I got a Fields Medal. If Frantic was a graduate from high-mindedness Chinese University it would matter as a good point bolster them.

Salaff contacted Donald Sarason, an Associate Professor at Bishop and, probably with Shiing-shen Chern's help, they managed to pretence Berkeley to waive their admission requirements and award him give someone a tinkle of two International Business Machines Corporation Fellowships to fund him to undertake research at decency University of California at Bishop.

Yau said [38]:-

When Frantic applied, I didn't know Chern, but after I was confessed Chern was offered an titular degree by the Chinese Doctrine of Hong Kong. I deem in June he came disparage Hong Kong from America have a high opinion of pick up the degree tell off I met him in ethics middle of June. That was after I was admitted. On the other hand I'm sure he must enjoy helped somewhat.
Yau asked her majesty friends to lend him many money so he could give the air fare to Usa.

He flew to San Francisco in September 1969 and, encounter up with three others far-out for accommodation, they were genial to rent a place. Though he received $300 a four weeks from his scholarship, he hurl half back to his race in Hong Kong, so woman was hard. He began alongside attending courses [29]:-

I registered in many classes because Uncontrollable felt I didn't know several different areas of modern sums and I started to remark interested in geometry.

I wellinformed quite a lot of nonconforming from different faculties in Bishop and during the first relative to I learned about manifolds. Comical learned Riemannian geometry, but crowd enough, it was just elementary.

He attended a course organization nonlinear partial differential equations subject by Charles Bradfield Morrey Jr.

(1907-1984) which he felt was excellent and, unable to be able to return home, spent ethics Christmas vacation working in dignity library reading research papers paramount monographs. Most of all, agreed enjoyed reading the Journal show Differential Geometry. In particular, crystalclear read a paper by Crapper Milnor describing how the requisite critical group of a manifold equitable influenced by curvature.

He arduous Milnor's paper very well handwritten and easy to understand. Give permission to referred to earlier papers which Yau found and read. Allowing only a few months review his time as a calibrate student, he found himself commendable to generalise some of blue blood the gentry results in these papers.

Chern had not been in Bishop during Yau's first year laugh a graduate student but in the way that he returned at the dawn of Yau's second year Yau asked Chern if he would be his thesis advisor.

Fiasco agreed and Yau continued draughting at Berkeley with Chern orang-utan his supervisor. In [21] President Fischer describes what Berkeley was like at that time asset mathematics graduate students:-

The calculation department at that time, need 1969 and 1970, was under enemy control into Campbell Hall, the Uranology building, and was not here occupy its current home musing the top four floors female Evans Hall until 1971.

Hold this small volume, low pandemonium state, there was considerable dealings between faculty, lecturers, graduate group of pupils, and visiting faculty. The colloquia were often packed with unadulterated lively crowd, a hundred exercises or so in a theatre-like setting, which was a group of people, at least on account of compared with the small audiences and tranquil demeanour of magnanimity Princeton colloquia.

It was undecided this low entropy state dump I first met Yau ploy the Fall of 1969, conj at the time that he was just starting bolster as a first year mark off student. ... I was overfull the photocopy room of Mythologist Hall in the Fall foothold 1969 ... and Yau walked in. We vaguely had illustrious of each other's existence, nevertheless not much more.

Yau was there to photocopy his tape on links between curvature increase in intensity topology. I was interested. Sand told me more. I talked about what I was operation on, a global formulation weekend away the Hamiltonian structure of typical relativity. It was a blow. These might be related. Incredulity both got excited.

Once powder was Chern's student, Yau dog-tired most of his time education complex manifolds.

In particular, closure read Eugenio Calabi's papers focus on became fascinated by the Calabi conjecture. After only two time, he received his Ph.D. confine 1971 for his thesis On the Fundamental Group of Closelyknit Manifolds of Non-positive Curvature. Hard this time he had join papers in print, On integrity fundamental group of manifolds break into non-positive curvature (1970), On honourableness fundamental group of compact manifolds of non-positive curvature(1971), and Compact flat Riemannian manifolds(1971).



Extensive session 1971-72, Yau was uncut member of the Institute in behalf of Advanced Study at Princeton. Blooper was appointed assistant professor parallel the State University of Modern York at Stony Brook plentiful 1972. In 1974 he was appointed an associate professor dilemma Stanford University. John Coates reduce Yau at this time.

Powder writes [12]:-

I first reduction Yau when he came make Stanford University in 1974, dialect trig year after I had entered at Stanford. I was hotfoot struck by two qualities more than a few Yau at this time. In the early stages, he had very broad precise interests (for example, I was amazed that he sat patiently though a rather technical grade course which I gave mood Iwasawa theory).

Secondly, he was remarkably hard working. Indeed, Crazed would occasionally come into primacy Stanford Mathematics Department towards middle of the night, and on every occasion Mad remember finding Yau there either doing his own work convey talking to the keen flybynight of graduate students which put your feet up quickly gathered around him.

In vogue 1976 Yau married the physicist Yu-yun Kuo; they have several sons, Isaac Yau and Archangel Yau.

He wrote in [80]:-

I was also lucky like have fallen in love succeed, and eventually married, a spouse who shared my view go off at a tangent there is more to empire than seeking personal wealth, matter possessions, and luxuries - wind greater rewards can come use scholarly endeavours. I'm proud keep see that our sons be born with also ventured far along authorized paths.
Yau was promoted get into the swing full professor at Stanford a while ago returning to the Institute sect Advanced Study at Princeton grind 1979.

In 1980 he was made a professor at grandeur Institute for Advanced Study monkey Princeton, a position he kept until 1984 when he impressed to a chair at position University of California at San Diego. In 1988 he was appointed professor at Harvard Institution. He was William Caspar Graustein Professor of Mathematics at Altruist but, in April 2022, fiasco retired from Harvard, where significant was named William Caspar Graustein Professor of Mathematics Emeritus, collision become a professor of maths at Tsinghua University in Peking, China.



Yau was awarded a Fields Medal in 1982 for his contributions to imperfect differential equations, to the Calabi conjecture in algebraic geometry, improve the positive mass conjecture fail general relativity theory, and run into real and complex Monge-Ampère equations. In fact the 1982Fields Medals were announced at a in use of the General Assembly catch the International Mathematical Union pry open Warsaw in early August 1982.

They were not presented during the International Congress in Warsaw which could not be reserved in 1982 as scheduled innermost was delayed until the closest year.

Nirenberg described Yau's be troubled at the International Congress contain Warsaw in 1983. Writing knoll [49] after the Fields Trimming awards were announced in 1982, Nirenberg wrote:-

S-T Yau has done extremely deep and muscular work in differential geometry turf partial differential equations.

He laboratory analysis an analyst's geometer (or geometer's analyst) with enormous technical nationstate and insight. He has flawed problems on which progress has been stopped for years.

Nirenberg describes briefly the areas of Yau's work. On the Calabi surmisal, which was made in 1954, he writes that this [49]:-
...

comes from algebraic geometry and involves proving the earth of a Kähler metric, scene a compact Kähler manifold, obtaining a prescribed volume form. Leadership analytic problem is that intelligent proving the existence of clean solution of a highly nonlinear (complex Monge-Ampère) differential equation. Yau's solution is classical in anima, via a priori estimates.

Diadem derivation of the estimates anticipation a tour de force stomach the applications in algebraic geometry are beautiful.

Yau solved ethics Calabi conjecture in 1976.

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Rip apart 1997, after being awarded probity National Medal of Science, agreed spoke about the difficulties purify encountered trying to either make good or disprove the conjecture; musical THIS LINK.

Another speculation solved by Yau was leadership positive mass conjecture, which be obtainables from Riemannian geometry. Yau, nonthreatening person joint work, constructed minimal surfaces, studied their stability and uncomplicated a deep analysis of anyhow they behave in space-time.

Monarch work here has applications board the formation of black holes.

The Plateau problem was studied by Plateau, Weierstrass, Mathematician and Schwarz but it was finally solved by Douglas courier Radó. However, there were on level pegging questions relating to whether Douglas's solution, which was known add up to be a smooth immersed appeal to, is actually embedded.

Yau, exploitable with W H Meeks dense this problem in 1980.

In 1981 Yau was awarded The Oswald Veblen Prize direct Geometry [89]:-

...for his trench in nonlinear partial differential equations, his contributions to the constellation of differentiable manifolds, and reckon his work on the dim Monge-Ampère equation on compact arrangement manifolds.
In the same origin be was awarded the Toilet J Carty Award for righteousness Advancement of Science of character National Academy of Sciences.

That is given:-

... to value noteworthy and distinguished accomplishments dwell in any field of science privy the National Academy of Science's charter.
In joint work fall foul of Yau with Karen UhlenbeckOn primacy existence of Hermitian Yang-Mills liaison in stable bundles(1986), they odd higher dimensional versions of grandeur Hitchin-Kobayashi conjecture.

Their work long that of Donaldson on that topic in 1985.

Leadership Crafoord Prize of the Speak Swedish Academy of Sciences was awarded to Yau in 1994[75]:-

... for his development see non-linear techniques in differential geometry leading to the solution forfeiture several outstanding problems.
G Tian [74] sums up Yau's gratuitous to date which led detection his being awarded the Crafoord Prize:-
As a result go rotten Yau's work over the gone twenty years, the role humbling understanding of basic partial calculation equations in geometry has denatured and expanded enormously within greatness field of mathematics.

His effort has had, and will stock to have, a great power on areas of mathematics tell off physics as diverse as constellation, algebraic geometry, representation theory, paramount general relativity as well introduce differential geometry and partial penetration equations.

You can read extracts from the citation for position award of the Crafoord Guerdon to Yau at THIS Good deal.



Yau was elected accept the National Academy of Sciences in 1993. He was awarded the National Medal of Information in 1997[17]:-

... for emperor fundamental contributions in mathematics don physics. Through his work, honourableness understanding of basic geometric separation contrast equations has been changed pointer he has expanded their character enormously within mathematics.
You vesel read extracts from the mention for the award of description National Medal of Science obtain Yau at THIS LINK.



In 2010, Yau was awarded the highly prestigious Wolf Accolade [70]:-

... for his sort out in geometric analysis that has had a profound and brilliant impact on many areas elaborate geometry and physics
You pot read extracts from the annotation for the award of glory Wolf Prize to Yau convenient THIS LINK.



In 2023, Yau was awarded another besides prestigious prize, the Shaw Liking, for his [69]:-

... benefaction related to mathematical physics, in the air arithmetic geometry, to differential geometry and to Kähler geometry.
Order around can read extracts from distinction citation for the award strip off the Shaw Prize to Yau at THIS LINK.

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He put a great display of effort into building Island mathematics, visiting China during say publicly Harvard summer vacation, helping high-level meeting Chinese students go to righteousness United States for doctoral studies, and working hard for goodness founding of mathematical institutes small fry Hong Kong, Beijing and Hangchow.

In 2004 he was revered in the Great Hall reproach the People, located on birth western side of Tiananmen Right-angled in Beijing, for his donations to Chinese mathematics.

Powder spoke about his work there help build mathematics in Dishware when the Shing-Tung Yau 1 Science Centre was Inaugurated make a fuss over Tsinghua University on 19 Foot it 2015.

Yau made a talking at the Opening Ceremony [79]:-

Over the years, I be born with established several mathematics centres intricate various places in China. Self-conscious goal is simply to affection that China could develop undiluted subject as fundamental as sums. I am very grateful deviate most Chinese mathematicians share unfocused convictions.

Professor Lo Yang decay a good friend ... alight for the past several decades, he has given us colossal support. There are many remainder from around the world who have helped the development flash Chinese mathematics education and enquiry. Starting in the Chinese Institution of Sciences, I have backdrop up research centres and assortments at various places in China; I have also trained heaps of Chinese students abroad.

Pitiless of them are here these days. In fact, I encourage them to return to China tolerable that we might collaborate birth improving mathematics in China. Surprise have also received help many mathematicians within China: upon are many like-minded people combat Tsinghua University, the Chinese Faculty of Sciences, and Zhejiang Doctrine providing us with strong provide backing.

Together we have selflessly loving our time and energy seat organise and support various arithmetic activities.

Yau has written diverse books, mostly co-authored. We yield information about eight of these books, including extracts from Prefaces and reviews, at THIS Connection.

Sadly, he was knotty in an unfortunate dispute concerning the proof of the Poincaré conjecture.

The Russian mathematician Grigory Perelman sketched a proof support the conjecture in 2003 flourishing several teams began work exert yourself giving a full comprehensive substantiation. Yau's team was one spend these and he has antique criticised by some for comments which people felt did whine give Perelman full credit. Disturb particular the New Yorker item [47] is highly critical incessantly Yau.

Richard S Hamilton, University lecturer of Mathematics, Columbia University, wrote the open letter [91] walk a beat Yau. It begins:-

I fruit drink very disturbed by the humid manner in which Yau Shing-Tung has been portrayed in rectitude New Yorker article. I entanglement providing my thoughts below forth set the record straight. Mad authorise you to share that letter with the New Yorker and the public if walk will be helpful to Yau.
Richard Hamilton ends his letter kind follows:-
[What] Yau has collective is an assembly of gift, not an empire of self-control, people attracted by his enthusiasm, his brilliant ideas, and king unflagging support for first trust mathematics, people whom Yau has brought together to work polite the hardest problems.

Yau other I have spent innumerable noonday over many years working application on the Ricci Flow esoteric other problems, often even cry at night. He has every generously shared his suggestions reap me, starting with the keep under surveillance of neck pinches, never invite for credit. In fact acceptable last winter when I at length managed to prove a stop trading version of the Harnack one-sidedness for the Ricci Flow, keen problem we had worked draw somebody in together for many years, flourishing I said I ought abide by add his name to picture paper, he modestly declined.

Gang is unfortunate that his badge has been so badly perverted. He has never to vulgar knowledge proposed any percentages go rotten credit, nor that Perelman forced to share credit for the Poincaré conjecture with anyone but me; which is reasonable, as de facto no one has been very generous in crediting my walk off with than Perelman himself.

Far unfamiliar stealing credit for Perelman's conclusion, he has praised Perelman's borer and joined me in support him for the Fields Award. And indeed no one anticipation more responsible than Yau funds creating the program on Ricci Flow which Perelman used be acquainted with win this prize.

Yau has clearly stated that it esoteric only been his intention strut say that his team obliged Perelman's proof understandable to top-hole much wider range of mathematicians.



Let us end that biography by quoting Bun Wong and Yat Sun Poon, Professors of Mathematics at the Order of the day of California at Riverside [84]:-

Yau's achievement in Mathematics high opinion well known within mathematics dominion. It is equally well state that he has successfully emerge b be published nearly 50 PhD students hole mathematics and has many collaborators across the globe.

Perhaps, pose is less well known dump he has donated personal stock to establish scholarships for math students, has donated tens come within earshot of thousands of books to ormative institutions, has helped raise status quo of millions of dollars envisage promote mathematics education and proof, and has raised fund academic promote interaction among scientists check subject boundaries and national borders.

Finally, here is a ode written by Yau in 2002:-

SPACE/TIME

Time, time
reason does it vanish?


Mesmerize manner of things
what infinite variety.
Three tot up rivers
all from of a nature source.
Time, space
mind, matter, reciprocal.
Put on ice, time
it never interest.
Space, space
respect much can it hold?
In constant motion
without exception in flux.
Black holes lurking
mysteries afoot.


Space and time
suspend without bounds.
Infinite, enormous
the secrets of birth universe.
Inexhaustible, lovely
in every detail.
Action time, measure space
ham-fisted one can do it.
Watched through a straw
what's to be learned has no end.

Shing-Tung Yau
Beijing, 2002