Organized minisymposia
 ILAS Annual Meeting, Braunschweig, Germany, 2011
``Totally Positive Matrices''
(coorganized with Juan Manuel Pena)
 ICIAM 2007
``Numerical Linear Algebra of Structured Matrices''
(coorganized with Olga Holtz)
 SIAM Annual Meeting, Montreal, Canada, June 2003
``High Accuracy Computations''
Talks
2022

ILAS 2022, Galway, Ireland
``Bidiagonal Decompositions of Structured Totally Nonnegative
Matrices with Repeated Nodes''
(PDF)
2017

FoCM 2017, Barcelona, Spain
``Densities of the extreme eigenvalues of the BetaMANOVA Ensemble''
(PDF)
 Mathematics Days in Sofia, Sofia, Bulgaria
``New Expressions for the Eigenvalues of Beta Random Matrix Ensembles''
(PDF)
2016

ILAS 2016
``Bidiagonal decompositions of singular totally nonnegative matrices''
(PDF)

BIRS Workshop on Beta Ensembles
Banff, Canada, 2016
``Conjecture: The Beta Orthogonal Matrices are Unitary''
(PDF)
2015

Groups and Rings: Theory and Applications
Sofia, Bulgaria, 2015
``Wishart Matrices of Arbitrary Dimension over the Reals''
(PDF)
2014

Mathematical Days in Sofia, Sofia, Bulgaria, 2014
``Accurate Eigenvalues of Singular Totally Nonnegative Matrices''
(PDF)
2012
 ILAS 2012
``Progress in the method of Ghosts and
Shadows for Beta Ensembles''
(PPT).
Also
(PDF)
at the Telecom Paristech.
 SIAM Conference on Applied Linear Algebra, Valencia, Spain, 2012
``Accurate Jordan structures of irreducible totally nonnegative
matrices''
(PDF)
 9th International Workshop on Accurate Solutions of Eigenvalue
Problems, Napa, California, 2012
``Accurate Jordan structures of irreducible totally nonnegative
matrices''
(PDF)
2011
 ILAS Annual Meeting, Braunschweig, Germany, 2011
``Accurate Jordan structures of irreducible totally nonnegative
matrices''
(PDF)
2009
 SIAM Conference on Applied Linear Algebra, Seaside, CA, 2009
Models for BetaWishart random matrices''
(PDF)
2008
 Foundations of Computational Mathematics Symposium, Hong Kong,
June, 2008
``Computing eigenvalues of random matrices''
(PDF)
 7th International Workshop on Accurate Solutions to
Eigenvalue Problems, Dubrovnik, Croatia, June, 2008
``Accurate eigenvalues of random matrices''
(PDF)
 Householder Symposium XVII, Zeuthen, Germany, June 16, 2008
``Computing eigenvalues of random matrices''
(PDF)
2007
 ILAS 2007, Shanghai, China
``Total Positivity, Bidiagonal
Decompositions, and
VariationDiminishing Properties''
(PDF)
 New York University, March 2, 2007
``New FFTlike Algorithm for Eigenvalues of Random Matrices''
2006

Program on High Dimentional Inference and Random Matrix
Theory, SAMSI, Research Triangle Park,
NC, Fall Semester 2006

``Computing the Hypergeometric Function of a Matrix Argument''
(PDF)

``Introduction to Zonal Polynomials''
(PDF)

ALA 2006, GAMMSIAM Conference on Applied Linear Algebra,
Duesseldorf, Germany, July 2006

``Accurate Eigenvalues of Certain Sign Regular Matrices''
(PDF)

``Accurate Eigenvalues of Elliptic PDEs Using Finite Elements''
(PDF)

Stochastic Eigenanalysis and Applications (SEA 06 @ MIT),
M.I.T., July 2006
``Computing the Hypergeometric Function of a Matrix Argument''
(PDF)

Pioneers of Bulgarian Mathematics, Sofia, Bulgaria, July 2006
``The Role of Schur Functions in 3D Target Classification''

(Plenary talk)
IWASEP 6, Sixth International Workshop on Accurate Solutions of
Eigenvalue Problems, Penn
State, May,
2006
``Accurate Eigenvalues of Sign Regular Matrices''
(PDF)
 Cornell University, Statistics Seminar, April 26, 2006
``Computing Eigenvalues of Random Matrices from Genomics
to 3D Target Recognition''
 University of Colorado at Denver, Mathematics Colloquium, February
18, 2006
``Computing Accurate Eigenvalues from Electrical Impedance
Tomography to 3D Target Recognition''
2005

Univerisity of California, Berkeley, September 21, 2005
``Accurate Computations with Totally Positive Matrices''
(PDF)

Bulgarian Academy of Sciences, July 15, 2005
``Fast Computation of Multivariate Symmetric and Hypergeometric
Functions''
(PDF in Bulgarian)
 FoCM
05  Foundations of Computations Mathematics Symposium,
Santander, Spain, July 2005
 Numerical Linear Algebra Workshop
``Accurate Eigenvectors and QR Decompositions of Totally Positive
Matrices''
(PDF)
 Random Matrices Workshop
``Computing Multivariate Statistics through the Hypergeometric
Function of a Matrix Argument''
(PDF)

ILAS 2005
Meeting, Regina, Canada, June 2005
``Oscillating Vectors and Totally Positive Matrices''
(PDF)

(Plenary talk)
Householder Symposium XVI,
May 2005. Anagram.
``Accurate Computations with Totally Nonnegative Matrices''
(PDF)

Universidad Carlos III de Madrid, January 12, 2005
``Accurate Matrix Computations in the Presence of Roundoff Errors''
(PDF)
2004

MathFest 2004, Providence, RI, August, 2004
``Computing the Hypergeometric Function of a Matrix Argument''
(PDF)

IWASEP 5,
Fifth International Workshop on Accurate Solutions of Eigenvalue
Problems, Hagen, Germany, June 2004.
``Accurate Eigenvalues and SVDs of Totally Nonnegative Matrices''
(PDF)

Massachusetts Institute of Technology, April 9, 2004
``Computing the Multivariate Hypergeometric Function''
(PDF)
2003

Theory and Numerics of Matrix Eigenvalue Problems, Banff, Canada, November, 2003
``Accurate Eigensystems of Totally Nonnegative Matrices''
(PDF)

IMECE '03  ASME International Mechanical Engineering Congress and RD&D
Expo, Washington, DC, November 2003.
``Thermal Model of a ThinnedDie Cooling System''
(PPT,
Movie)
 SIAM Conference on Applied Linear Algebra, Williamsburg, VA, July, 2003
``The Complexity of Accurate Computations with Structured
Matrices''
(PDF)
``Accurate Linear Algebra with Totally Positive Matrices''
(PDF)

SIAM Annual Meeting, Montreal, June 2003.
``Accurate
and Efficient Matrix Computations with Totally Positive Matrices''
(PDF)

New York University, February 7, 2003
``Accurate Eigenvalues and SVDs of Totally Positive Matrices''
(PDF)
2002

Parallel Matrix Algorithms and Applications, Neuchatel, Switzerland,
November, 2002
``Accurate SVDs of Polynomial Vandermonde and Weakly Diagonally Dominant
MMatrices''
(PDF)

FoCM '02 
Foundations of Computational Mathematics Meeting,
Minneapolis, MN, August 2002
``Accurate and Efficient Matrix Computations with Totally Positive
Generalized Vandermonde Matrices Using Schur Functions''
 2002 SPIE Annual Meeting, Seattle, WA, July 2002
(Advanced Signal Processing Algorithms, Architectures,
and Implementations XII Workshop)
``Accurate Matrix Computations with Totally Positive
Generalized Vandermonde Matrices''

IWASEP 4  Fourth
International Workshop on Accurate Solutions of
Eigenvalue Problems, Split, Croatia, June 2002
``Accurate SVDs of Polynomial Vandermonde and Mmatrices''
(PDF)
 Householder Symposium XV,
Peebles, Scotland, June 2002
``Accurate Solutions to Totally Positive Linear Systems. Application
to Generalized Vandermonde Matrices''
(PDF)
 Massachusetts Institute of Technology, March 15, 2002
``Accurate and Efficient Matrix Computations with Totally Positive
Generalized Vandermonde Matrices Using Schur Functions''
(PDF)

Bay Area Scientific Computing Day, Pleasanton, CA, March 2, 2002
``Accurate and Efficient Matrix Computations with Totally Positive
Generalized Vandermonde Matrices Using Schur Functions''
(PDF)
2001
2000
1999