
AMS Sectional Meeting Program by Special Session
Current as of Saturday, October 29, 2005 01:24:04
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Special Event or Lecture 
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2005 Fall Central Section Meeting
Lincoln, NE, October 2123, 2005
Meeting #1011
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Special Session on Combinatorial Matrix Theory

Friday October 21, 2005, 1:45 p.m.3:40 p.m.
Special Session on Combinatorial Matrix Theory, I
Room 120, Burnett Hall Organizers: Leslie Hogben, Iowa State University lhogben@iastate.edu
Bryan L. Shader, University of Wyoming bshader@uwyo.edu

1:45 p.m.
Sign patterns, inverses, and generalized inverses.
Thomas Britz, Technical University of Denmark
Dale Olesky, Department of Computer Science, University of Victoria, Canada
Pauline vanden Driessche, Department of Mathematics, University of Victoria, Canada
Bryan L. Shader*, Mathematics Department, University of Wyoming
(101115137)

2:15 p.m.
On Spectrally Arbitrary Patterns.
Michael S. Cavers, Univeristy of Waterloo
InJae Kim, University of Wyoming
Bryan L. Shader, University of Wyoming
Kevin N. Vander Meulen*, Redeemer University College
(101115106)

2:45 p.m.
Spectrally Arbitrary ZeroNonzero Patterns.
Judith J McDonald*, Washington State University
(101115159)

3:15 p.m.
Ray Patterns, Determinants and Inversion.
Jeffrey Stuart*, Pacific Lutheran University
(101115179)

Saturday October 22, 2005, 8:00 a.m.11:30 a.m.
Special Session on Combinatorial Matrix Theory, II
Room 19, Avery Hall Organizers: Leslie Hogben, Iowa State University lhogben@iastate.edu
Bryan L. Shader, University of Wyoming bshader@uwyo.edu

8:00 a.m.
The Minimal Rank Problem and Forbidden Subgraphs.
Wayne Barrett*, Department of Mathematics, Brigham Young University
Jason Grout, Brigham Young University
Don March, University of Florida
Hein van der Holst, Eindhoven University of Technology
Raphael Loewy, TechnionIsrael Institute of Technology
(101115202)

8:30 a.m.
The Minimal Rank Problem Over Finite Fields and Projective Geometries.
Jason Grout*, Brigham Young University
Wayne Barrett, Brigham Young University
Don March, University of Florida
(101115203)

9:00 a.m.
Minimum Rank Problem and zero patterns.
Francesco Barioli*, University of Tennessee Chattanooga
(101115296)

9:30 a.m.
The Minimum Positive Semidefinite Rank of a Graph.
Sivaram K. Narayan*, Central Michigan University
(101115133)

10:00 a.m.
Minimum Rank and Maximum Eigenvalue Multiplicity of Symmetric Tree Sign Patterns.
Luz M. DeAlba*, Drake University
Timothy L. Hardy, Chadron State College
Irvin R. Hentzel, Iowa State University
Leslie Hogben, Iowa State University
Amy Wagsness, Iowa State University
(101115117)

10:30 a.m.
Sign patterns that almost require a unique rank.
Zhongshan Li*, Georgia State University
Marina Arav, Georgia State University
Yubin Gao, North University of China
Frank Hall, Georgia State University
Selcuk Koyuncu, Georgia State University
(101115175)

11:00 a.m.
On the Exponents of Oscillatory Matrices.
Shaun M Fallat*, University of Regina
(101115103)

Saturday October 22, 2005, 3:00 p.m.4:55 p.m.
Special Session on Combinatorial Matrix Theory, III
Room 19, Avery Hall Organizers: Leslie Hogben, Iowa State University lhogben@iastate.edu
Bryan L. Shader, University of Wyoming bshader@uwyo.edu

3:00 p.m.
An Interlacing Result on Normalized Laplacians.
Guantao Chen, Georgia State University
George Davis, Georgia State University
Frank Hall*, Georgia State University
Zhongshan Li, Georgia State University
Kinnari Patel, Emory University
Michael Stewart, Georgia State University
(10111549)

3:30 p.m.
Some remarks on unispectral graphs.
Wasin So*, San Jose State University
(10111519)

4:00 p.m.
Corona of two Graphs.
Sasmita Barik, Indian Institute of Technology Guwahati
Sukanta Pati, Indian Institute of Technology Guwahati
Bhaba Kumar Sarma*, Indian Institute of Technology Guwahati
(10110552)

4:30 p.m.
Perfect matchings, eigenvalues and expansion.
Sebastian M Cioab\u{a}*, Queen's University at Kingston
(101105156)

Sunday October 23, 2005, 8:30 a.m.11:30 a.m.
Special Session on Combinatorial Matrix Theory, IV
Room 19, Avery Hall Organizers: Leslie Hogben, Iowa State University lhogben@iastate.edu
Bryan L. Shader, University of Wyoming bshader@uwyo.edu

8:30 a.m.
Matrix Completion Problems.
Leslie Hogben*, Iowa State University
(10111547)

9:00 a.m.
Some results on the matrix completion problem for various classes of $P_{0,1}$matrices.
Amy Wangsness*, Fitchburg State College
(101115161)

9:30 a.m.
The Totally Nonnegative Completion Problem.
Brenda K. Kroschel*, Univ. of St. Thomas
Charles R. Johnson, College of William and Mary
Emily B. Dryden, McGill University
(101115262)

10:00 a.m.
Some recent matrix results in mathematical biology.
ChiKwong Li*, College of William and Mary
(10111543)

10:30 a.m.
Linear maps transforming the higher numerical ranges.
Chi Kwong Li, College of William and Mary
Yiu Tung Poon*, Iowa State University
Nung Sing Sze, The University of Hong Kong
(101115189)

11:00 a.m.
Some Results on Structured Mmatrices.
J. Ding*, Department of Mathematics, The University of Southern Mississippi
Wallace C. Pye, Department of Mathematics, The University of Southern Mississippi
(10111530)
Inquiries: meet@ams.org

