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- Abraham Berman, Minerva Catral, +7 authors Pauline van den Driessche
- 2010

Several necessary or sufficient conditions for a sign pattern to allow eventual positivity are established. It is also shown that certain families of sign patterns do not allow eventual positivity.â€¦ (More)

- In-Jae Kim, Brian P. Barthel, +4 authors Dooyoung Shin
- Networks
- 2014

An approach, based on the Smith Normal Form, is introduced to study the spectra of symmetric matrices with a given graph. The approach serves well to explain how the path cover number (resp. diameterâ€¦ (More)

- In-Jae Kim, Amy Wangsness
- 2007

The workshop, Spectra of Families of Matrices described by Graphs, Digraphs and Sign Patterns, was held at the American Institute of Mathematics Research Conference Center on October 23 to Octoberâ€¦ (More)

A new family of minimal spectrally arbitrary patterns is presented which allow for arbitrary spectrum by using the Nilpotent-Jacobian method introduced in [J.H. Drew, C.R. Johnson, D.D. Olesky, andâ€¦ (More)

- In-Jae Kim, D. D. Olesky, Bryan L. Shader, Pauline van den Driessche
- SIAM J. Matrix Analysis Applications
- 2007

An m by n sign pattern S is an m by n matrix with entries in {+,âˆ’, 0}. Such a sign pattern allows a positive (resp., nonnegative) left inverse, provided that there exist an m by n matrix A with theâ€¦ (More)

- Sanghyun Kim, Y A Kim, +12 authors Hyo Soo Kim
- Clinical therapeutics
- 2007

BACKGROUND
Amlodipine besylate has been used in Korea for the treatment of hypertension for >17 years, with well-established efficacy and tolerability. Amlodipine camsylate is a newer formulationâ€¦ (More)

- In-Jae Kim, D. D. Olesky, Bryan L. Shader, Hein van der Holst, N. Kevin, Vander Meulen
- 2017

A sign pattern is a matrix with entries in {+,âˆ’, 0}. A full sign pattern has no zero entries. The refined inertia of a matrix pattern is defined and techniques are developed for constructingâ€¦ (More)

The minimum rank of a simple graph G over a field F is the smallest possible rank among all real symmetric matrices, over F, whose (i, j)-entry (for i 6= j) is nonzero whenever ij is an edge in G andâ€¦ (More)

A new family of minimal spectrally arbitrary patterns is presented which allow for arbitrary spectrum by using the Nilpotent-Jacobian method introduced in [J.H. Drew, C.R. Johnson, D.D. Olesky, andâ€¦ (More)