My talks

(partial list)


Gelfand seminar 1964-1989


14-Feb-72, L.N. Vasserstein.

6-Mar-72, L.N. Vasserstein. Different K-theories

13-Mar-72, L.N. Vasserstein.

13-Nov-72, L.N. Vasserstein.

19-Nov-73, L.N. Vasserstein.




1979


U of Chicago  Normal subgroups Summer of 1980, audience: Kaplansky, Swan, Bloch


Northwestern U Evanston Normal subgroups of  GLn over a ring, May 1979



1980


Penn State  audience: O’Meara,…


Princeton U billiard,  audience: Ranicki, W.Browder,…


Cornell U  audience: Dennis, …



1981


U of Maryland Sept 2 1981  4:00 pm  Sinai's billiard


                        Sept 3, 1981 Coll  van der Waerden problem on permanents



1982


793rd AMS meeting at Bryn Mawr   March 17, 1982  1:10 - 2:10 pm  Classical groups over rings

   also chairman of a special session, March 16-17, 1982 


University of Oklahoma  May 18, 1982  Full and Zariski-dense subgroups.



1983


Stony Brook  May 19 ,  K1-theory of Euclidean  spaces; 

                     May  20,,  Congruence subgroup problem.           


U.S.-France Algebraic K-theory Seminar, Luminy France  May 23-28  about 28  Normal and full subgroups of classical grouups.    


Canada Hamilton  Classical groups over rings.   


Nov. 19-22 Los Angeles; Nov 21 Classical groups over rings, 

CallTech 11:00 am, UCLA 2:00 pm,     


U.of Virginia  Dec.6 Sinai's billiard (coll.); 

                      Dec.7 Classical groups over rings (alg.sem.)  




1984/85


1984 /85: Kentucky 2 talks; 


Boca Raton 2; 


IAS Dec.13, 1984 Mennicke symbols; 


Riverside 2 talks; 


Rutgers Febr. 8, 1985, Mennicke symbols, algebra sem.; 

Bielefeld Mennicke symbols March 15 Fr.; 


Oberwalfach March 20, W  Quadratic forms over rings of cont. functions.



1987


Brown U. March 4 Intro alg K-theory. 

   May 18, Beijing, China, Normal & subnormal 

   May 26, 8:30 Changchun, China, Normal     & subnormal

   May 28, Inst.M.Acad.Sinica, Beijing, 14:30, Lower alg K-theory.

   June 4, Xi'an, China, 15-16, Linear algebra and alg K-theory 

   Normal subgroups of classical groups over rings and gauge groups,  &  Non-commutatiove number theory, Ibadan , Aug 10 & 12.   

   Structure of  classical groups over rings , Frankfurt Nov 13. 300DM. 

   F. Nov. 20, Structure of gauge groups, Bielefeld. 400

   M. Nov.23, On Waring´s problem, Dortmund.         300 ? T.Nov.24. Structure of orthogonal groups, Munster. 200 ?



1988


Liminy The structure of gauge groups, Jan.  

   Paris VII  The structure of gauge groups, March 18, 15:30.

   Bielefeld, Non-commutative number theory, April 15.

   Lausanne 22 April, Mennicke symbols. 

   Geneve  April 26,  The structure of Gauge groups. Oberwalfach June 6, Structure of gauge groups.



1989-1992


June 22, 1989  Structure of classical groups over rings, Italy Santa Margaritta   

    March 9, 1990 3:30 pm Fr   Structure of classical groups, 

   Sci Div  U of Wis-Parkside,

   April 4, 1990 Italy (with Wheland) Factorization of matrices over stable rank 1 rings.

   Aug 5 or 6 1990 Colorado  Sums of cubes  

   January  16  1991 Yale  4:30 pm  Sums of three cubes.

   June 26, 1991 Columbus Ohio Sums of three cubes. 

   Sept 3 1991 Grenada  Work of P.Menal on normal subgroups

   July 29, 1992  Moscow Steklov algebra seminar, 11:00-13:00 'On sums of three integral cubes'.



1993


CWI Amsterdam  Tue June 22  11-12 am  Sums of integral cubes

   Technische Universiteit Eindhoven  W June 23  Sums of integral cubes 

   Technische Universitat Graz Th June 25 2:00 pm Sums of three cubes 

   Oberwalfach  F  July 3, 9:00  Products of conjugacy classes of two by two matrices



1994


Products of conjugacy classes    Toronto March 7

   

   On sums of three cubes  Waterloo March 8

   

   Los Alomos Sep 13,  1994  10:30a

 `Solution of Serre's problem on projective modules over    polynomial rings`

                                     1:30 pm     

 'Reduction of invertible matrices over polynomial rings to    diagonal form by addition operaration`



 Yale   Dec 15   Products of conjugacy classes  2:30 pm Lie algebras seminar



1995/96


Jan 9  Products of conjugacy classes  Brest, France

Febr 17  Products of conjugacy classes  UAB, Spain

March 16,  Products of conjugacy classes  Murcia, Spain

August  29 U of Toronto 'Sums of three cubes'


Oct 30, 1996  Rutgers  Arithmetic groups

Dec 16, 1996 Sums of three cubes, Las Vegas