Richard Z. Robinson
Graduate Student
Department of Mathematics
University of Washington
Seattle, WA 98195
Email:
rzr@math.washington.edu
Office: PDL C-110
Research
I am currently working with
Rekha Thomas
on semidefinite programming and combinatorial optimization.
Papers
Published:
J. Gouveia, et. al.
Which Nonnegative Matrices Are Slack Matrices?
. to appear in
Linear Algebra and its Applications
. 2013.
J. Gouveia, R. Robinson, R. Thomas.
Polytopes of Minimum Positive Semidefinite Rank
. to appear in
Discrete and Computational Geometry
. 2013.
Preprints:
J. Gouveia, R. Robinson, R. Thomas,
Worst-Case Results for Positive Semidefinite Rank
. 2013.
Codes
Sage code to test if a given matrix is a slack matrix:
SlackMatrixRecognition
Mathematica code to generate tilings via projections from higher dimensional lattices:
ProjectionScript.m
,
FourierScript.m
,
Demo_Projection.nb
Other Stuff
Resume
, updated July 2013