Tom Bella
Department of Mathematics
 

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My Schedule

January 2012
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Saturday, January 28th, 2012
 
It's Saturday, no classes today.


Office Hours in Lippitt 102G

Tuesday   12:45pm - 1:30pm  
Thursday   12:45pm - 2:30pm  
Welcome to my webpage.



  Research Interests     [+]

My current research interests include:
  1. Scientific computing and numerical linear algebra.
  2. Matrix theory, structured matrices, matrices with quasiseparable structure.
  3. Indefinite inner product spaces.
  4. Signal processing and control theory.
  5. Algebraic coding theory.



  Publications     [+]

In Preparation
    A QR algorithm for out-of-band quasiseparable matrices (with Y. Eidelman, I. Gohberg, V. Olshevsky), in preparation
    Quasiseparable-Totally Nonnegative Matrices and Accurate Computations (with F. Dopico, V. Olshevsky), in preparation
    Fast algorithms for multiplication of a quasiseparable matrix by a vector (with V. Olshevsky, M. Stewart), in preparation
    Using unitary Hessenberg matrices to factor projectors (with V. Olshevsky, A. Phillips), in preparation
Submitted
    Classifications of three-term and two-term recurrence relations via subclasses of quasiseparable matrices (with Y. Eidelman, I. Gohberg, V. Olshevsky), submitted to SIAM Journal of Matrix Analysis (SIMAX)
    A Nested Product Decomposition of a Quasiseparable Matrix (with V. Olshevsky, M. Stewart), submitted
    A Fast Traub-like inversion algorithm for Hessenberg order one quasiseparable Vandermonde matrices (with Y. Eidelman, I. Gohberg, V. Olshevsky, E. Tyrtyshnikov), submitted to Journal of Complexity
2011
    Classifications of recurrence relations via subclasses of (H,k)-quasiseparable matrices (with V. Olshevsky, P. Zhlobich), Numerical Linear Algebra in Signals, Systems and Control, Lecture Notes in Electrical Engineering, Springer-Verlag, Lecture Notes in Electrical Engineering, Vol. 80, 1st Edition., 23-54 (2011)
    A quasiseparable approach to five-diagonal CMV and companion matrices (with V. Olshevsky, P. Zhlobich), Linear Algebra and its Applications, Volume 434, Issue 4, 15 February 2011, Pages 957-976 (2011)
2010
    A Traub-like algorithm for Hessenberg-quasiseparable-Vandermonde matrices of arbitrary order (with Y. Eidelman, I. Gohberg, V. Olshevsky, E. Tyrtyshnikov, P. Zhlobich), Numerical methods for structured matrices and applications, 127–154, Operator Theory: Advances and Applications, 199, Birkhauser Verlag, Basel (2010)
    Signal Flow Graph Approach to Inversion of (H,m)-Quasiseparable Vandermonde Matrices and New Filter Structures (with V. Olshevsky, P. Zhlobich), Linear Algebra and its Applications, Volume 432, Issue 8, 1 April 2010, Pages 2032-2051 (2010)
2009
    A fast Bjorck-Pereyra-type algorithm for solving Hessenberg-quasiseparable-Vandermonde systems (with Y. Eidelman, I. Gohberg, I. Koltracht, V. Olshevsky), SIAM. J. Matrix Anal. & Appl., Volume 31, Issue 2, pp. 790-815 (2009)
2008
    Computations with quasiseparable polynomials and matrices (with Y. Eidelman, I. Gohberg, V. Olshevsky), Theoretical Computer Science, Volume 409, Issue 2, 17 December 2008, Pages 158-179 (2008)
    Lipschitz stability of canonical Jordan bases of H-selfadjoint matrices under structure-preserving perturbations (with V. Olshevsky, U. Prasad), Linear Algebra and its Applications, Volume 428, Issues 8-9, 15 April 2008, Pages 2130-2176 (2008)
    Ranks of Hadamard Matrices and Equivalence of Sylvester Hadamard and Pseudo-Noise Matrices (with V. Olshevsky, L. Sakhnovich), Recent Advances in Matrix and Operator Theory, 35--46, Oper. Theory Adv. Appl., 179, Birkhauser, Basel, (An updated version containing new results of the conference proceedings in: Proc. SPIE Vol. 5910. in 2005) (2008)
2007
    A Bjorck-Pereyra-type algorithm for Szego-Vandermonde matrices based on properties of unitary Hessenberg matrices (with Y. Eidelman, I. Gohberg, I. Koltracht, V. Olshevsky), Linear Algebra and Applications, Volume 420, Issues 2-3 pp. 634-647 (2007)
2005
    Equivalence of Hadamard matrices and pseudo-noise matrices (with V. Olshevsky, L. Sakhnovich), Advanced Signal Processing Algorithms, Architectures, and Implementations XV, Proceedings of SPIE Volume: 5910, Franklin T. Luk, Editors, 59100V (2005)



  Talks     [+]

2011
    Stability of Methods for Quasiseparable Matrices, Minisymposium on Structured Matrices, ICIAM 2011, July 18 - 22, 2011, Vancouver, BC, Canada. (2011)
http://www.iciam2011.com/
    Structured Matrices and Some Results on Quasiseparable Matrices, Colloquium Talk, Central Connecticut State University Mathematics Department (2011)
http://www.math.ccsu.edu/gotchev/colloquium/past/Spring2011/
    Stability of Methods for Quasiseparable Matrices, Minisymposium on Structured Matrix Computations, SIAM Conference on Computational Science and Engineering, Reno, NV, USA (2011)
http://www.siam.org/meetings/cse11/index.php
2010
    Stability of Methods for Quasiseparable Matrices, New England Numerical Analysis Day 2010, Worcester Polytechnic Institute, Worcester, MA (2010)
http://www.wpi.edu/academics/Depts/Math/News/neweng231.html
    Stability of Methods for Quasiseparable Matrices, Minisymposium on Large Scale Matrix Computation, AMS Spring Southeastern Sectional Meeting in Lexington, KY, USA, March 27-28, 2010 (Meeting #1057) (2010)
http://www.ams.org/amsmtgs/2162_program.html
2009
    Arbitrary Order Hessenberg Quasiseparable Matrices and Polynomials, Three-Part Minisymposium on Quasiseparable Matrices and Polynomials (minisymposium speaker and co-organizer), SIAM Applied Linear Algebra 2009, Monterey, CA, USA (2009)
http://www.siam.org/meetings/la09/
    Arbitrary Order Hessenberg Quasiseparable Matrices and Polynomials, Northern Illinois University Linear Algebra Meeting 2009, DeKalb, IL, USA (2009)
http://www.math.niu.edu/LA09/
2008
    Classifications of quasiseparable matrices in terms of recurrence relations, Structured Linear Algebra Problems: Analysis, Algorithms, and Applications 2008 - Cortona, Italy (2008)
http://www.dm.unipi.it/~cortona08
    Fast algorithms for polynomial-Vandermonde matrices related to quasiseparable matrices, Minisymposium on Interpolation Problems, Eighteenth International symposium on Mathematical Theory of Networks and Systems (MTNS2008) (2008)
http://www.cpe.vt.edu/mtns08/
    Fast algorithms for polynomial-Vandermonde matrices related to quasiseparable matrices, Minisymposium on Structured Matrices, IWOTA 2008 - Williamsburg, VA, USA (2008)
http://www.math.wm.edu/~vladi/IWOTA/IWOTA2008.htm
    Eigenproblems for quasiseparable matrices, Minisymposium on Eigenproblems: Theory and Computation, ILAS 2008 - Cancun, Mexico (2008)
http://star.izt.uam.mx/ILAS08/
    Quasiseparable matrices and polynomials, Gene Golub Memorial Conference, Dartmouth, MA, USA (2008)
http://www.umassd.edu/cas/mathematics/people/leon/conference/
    Quasiseparable Matrices and Polynomials, Colloqium Talk, Georgia State University, Atlanta, GA (2008)
http://www2.gsu.edu/~wwwmat/research/Colloquiums2007.html
2007
    Quasiseparable matrices and polynomials, Hans Schneider 80th Birthday Meeting, UConn, Storrs, CT (2007)
    Fast algorithms for polynomial Vandermonde matrices related to quasiseparable matrices, Minisymposium on Structured matrix algorithms: complexity and stability, ICIAM 2007 - Zurich, Switzerland - 6th International Congress on Industrial and Applied Mathematics (2007)
2006
    Fast algorithms for polynomial Vandermonde matrices related to quasiseparable matrices, Minisymposium on Structured Matrices and Fast Algorithms, SIAM 2006 - Boston, MA (2006)
2005
    The Equivalence of Pseudo-noise and Hadamard-Sylvester matrices, ILAS 2005 - Regina, Canada (2005)
    A Parker-Forney-Traub like algorithm for quasiseparable-Hessenberg-Vandermonde matrices, Minisymposium on Structured Matrices, IWOTA 2005 - Storrs, CT, USA (2005)
    The generalized Bjorck-Pereyra algorithm for Szego-Vandermonde matrices based on properties of unitary Hessenberg matrices, ILAS 2005 - Regina, Canada (2005)
    The Equivalence of Pseudo-noise and Hadamard-Sylvester matrices, SPIE 2005 - San Diego, CA (2005)
2004
    Introduction to Linear Codes, Series in Linear Codes, SIGMA Seminar, University of Connecticut (2004)
    The Equivalence of Pseudo-noise and Hadamard-Sylvester matrices, ILAS 2004 - Coimbra, Portugal (2004)



 


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