625 citations
- California Institute of TechnologyUS82 papers
- Carnegie ObservatoriesUS33 papers
- Carnegie Institution for ScienceUS27 papers
- University of California, Los AngelesUS26 papers
- Princeton UniversityUS25 papers
- University of California San DiegoUS24 papers
- Northwestern UniversityUS23 papers
- University of California, DavisUS23 papers
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- Center for Astrophysics Harvard & SmithsonianUS21 papers
- University of California, IrvineUS21 papers
- Pennsylvania State UniversityUS20 papers
10 papers · 1 filter
Triangles, squares and geodesics
Rena Levitt, Jon McCammond
In the early 1990s Steve Gersten and Hamish Short proved that compact nonpositively curved triangle complexes have biautomatic fundamental groups and that compact nonpositively cur…
Multigraded combinatorial Hopf algebras and refinements of odd and even subalgebras
Samuel K. Hsiao, Gizem Karaali
We develop a theory of multigraded (i.e., -graded) combinatorial Hopf algebras modeled on the theory of graded combinatorial Hopf algebras developed by Aguiar, Bergeron, and S…
Unitary equivalence to a complex symmetric matrix: an algorithm
James E. Tener
We present a necessary and sufficient condition for a 3 by 3 matrix to be unitarily equivalent to a symmetric matrix with complex entries, and an algorithm whereby an arbitrary 3 b…
Complex symmetric partial isometries
Stephan Ramon Garcia, Warren R. Wogen
An operator $T \in B(\h)$ is complex symmetric if there exists a conjugate-linear, isometric involution $C:\h\to\h$ so that . We provide a concrete description of all co…
Some new classes of complex symmetric operators
Stephan Ramon Garcia, Warren R. Wogen
We say that an operator is complex symmetric if there exists a conjugate-linear, isometric involution so that . We prove that binormal operators,…
Unitary equivalence to a complex symmetric matrix: geometric criteria
Stephan Ramon Garcia, Levon Balayan
We develop several methods, based on the geometric relationship between the eigenspaces of a matrix and its adjoint, for determining whether a square matrix having distinct eigenva…