6,305 reputation
32469
bio website saveitep.org
location Moscow
age 40
visits member for 3 years, 11 months
seen 2 hours ago
http://ru.linkedin.com/pub/alexander-chervov/57/447/a93
Started as A.A. Kirillov's student in rerpresentation theory in Moscow State University. Got PhD in 1999. Worked in ITEP Moscow for 10 years somewhere in between representation theory, integrable systems and algebraic geometry, in particular geometric Lanlgands and its connection to Hitchin-Gaudin integrable systems.
Currently in industry: quantitative finance, previously in wireless telecommunication doing applied math.: information theory, error-correcting codes, statistical estimation theory, numerical algorithms.
Deeply worried about the ITEP very unfortunate situation: http://saveitep.org
http://n-vetlitskaya.livejournal.com/241846.html
Leading Russian research center is in danger. More than 850 scientists signed letter to president and prime-minister asking for help. Fields medalists M. Atiyah, L. Lafforgue, E. Witten, Nobel Prize winner D. Gross, mathematicians A. Beilinson, I. Cherednik, B. Dubrovin, P. Etingof, B. Feigin, A. Kirillov, I. Krichever, N. Reshetikhin, E. Vinberg, physicists J. Cardy (Oxford), M. Douglas, J. Froehlich, J. Maldacen (IAS), N. Nekrasov(IHES, ITEP), B. de Wit, are among them.
You can join support letter here: https://sites.google.com/site/itep2012/english

Nature, 27.01.2012 , Geoff Brumfiel 'Russian physicists protest government consolidation' http://www.nature.com/news/russian-physicists-protest-government-consolidation-1.9921

I worked in ITEP more than 10 years, I learned a lot from these people and it is really one the best institutes in Russia and world. Like many colleagues I am really afraid that current situation is step by step programm of killing ITEP. Last year newly instead director made from research institute "GULAG-light" as said Prof. Stan Brodsky from Stanford said after seeing all this.
My name Alexander Chervov
al. mysurname at gmail dot com

2h
comment Can (how) one distinguish germs of continuous functions by a countable set of params?
Thank you ! First sentence : analytic - you mean continuous?
2d
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
@IgorKhavkine Okay, you are right with you examples. Can I beg for more examples ? )) Is there any way to produce lots of them not in some artificial way ? (Like choose some predescribed germs or subsets of germs and send them to predescribed reals (that is generalization of your smooth->1) ?
2d
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
@IgorKhavkine would you mind looking at mathoverflow.net/questions/184897/…
2d
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
Would you mind looking at: mathoverflow.net/questions/184897/…
2d
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
Is it correct that your "functional" sends germ f(x) to natural number "k" ?
2d
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
Dear Prof. Michor thank you for your kind answer. Let me try to check my understanding. Informal idea: we can make a function which quantifies how fast is germ f(x) growing nearby. To do it you suggest to compare it with some other functions which grows very fast. So you suggest exp(exp(exp(exp(....)). Is this understanding correct ?
2d
asked Can (how) one distinguish germs of continuous functions by a countable set of params?
Oct
19
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
@igorkhavkine lets forget about "coordinates". Just what are examples? What are other examples of "quantative properties" ? Can you suggest one more?
Oct
19
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
@igorkhavkine what about fractal dimension? It is bounded by 2 , so upper limit for it --- need not to be tracated by hands
Oct
19
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
@TheoJohnson-Freyd You are right. May be revised version of question is clearer.
Oct
19
comment “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
@GeraldEdgar Eric Wofsey I do not mean "linear".
Oct
19
revised “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
minor
Oct
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revised “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
big rewriting
Oct
19
awarded  Custodian
Oct
19
reviewed Approve suggested edit on “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
Oct
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revised “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
added 101 characters in body
Oct
18
asked “Nice” functions on infinite-dimensional space of germs of continuous functions at a point
Oct
12
awarded  Popular Question
Oct
8
comment Generators of invariant polynomials of semisimple Lie algebra
Tr(X^k) is little bit less canonical than coefficients of char. polynomial, since Tr(X^k) is not a basis over Z (integers). I mean to Newton formulas which express coef. of char. pol. via Tr(X^k) have denominators, but not vice versa. Better example is to take "complete symmetric functions" and coefficients of symmetric polynomial - these two are generators over Z (integers).
Oct
7
awarded  Favorite Question