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- Judith D. Gardiner, Alan J. Laub, James J. Amato, Cleve B. Moler
- ACM Trans. Math. Softw.
- 1992

A software package has been developed to solve efficiently the Sylvester-type matrix equation <italic>AXB<supscrpt>T</supscrpt></italic> + <italic>CXD<supscrpt>T</supscrpt></italic> = <italic>E</italic>. A transformation method is used which employs the QZ algorithm to structure the equation in such a way that it can be solved columnwise by a back… (More)

- Judith D. Gardiner, Matthew R. Wette, Alan J. Laub, James J. Amato, Cleve B. Moler
- ACM Trans. Math. Softw.
- 1992

This paper documents a software package for solving the Sylvester matrix equation (1) <italic>AXB<supscrpt>T</supscrpt></italic> + <italic>CXD<supscrpt>T</supscrpt></italic> = <italic>e</italic>
All quantities are real matrices; <italic>A</italic> and <italic>C</italic> are <italic>m</italic> x <italic>n</italic>; <italic>B</italic> and… (More)

- Judith D. Gardiner
- SIAM J. Scientific Computing
- 1997

- Judith D. Gardiner
- 2009 DoD High Performance Computing Modernization…
- 2009

This project explores a new mechanism for early detection of Internet disturbances, including both natural and malicious events. We used multiple hidden Markov models to analyze a type of global routing data called Border Gateway Protocol (BGP). Reasonably good discrimination was achieved between quiet periods and disturbances, and some discrimination was… (More)

- J. D. Gardiner, A. J. Laub
- C3P
- 1989

A parallel algorithm for solving the algebraic Riccati equation is described and its performance on an Intel iPSC/d5 is reported. Three variations of the matrix sign function algorithm are compared. The best one showed efficiencies of about 60 percent on large problems.

- Jason Stamp, Jennifer Stinebaugh, +12 authors Andrew Lanzone
- 2013

• Energy surety and microgrids o Lead Design Engineer for the DOE/DoD SPIDERS microgrid project (2010-present) o Microgrid design for military facilities (2008-present) • Cyber security of automation and control systems in electric power o Threat analysis for infrastructure systems (2004-present) o Cyber security modeling and design for automation and… (More)

- Francois Vandenberghe, Mike Barlage, Scott Swerdlin, Judith Gardiner, Ashok Krishnamurthy, Alan Chalker
- 2009 DoD High Performance Computing Modernization…
- 2009

Because tests at Army Test and Evaluation Command (ATEC) ranges can often only be conducted under specific atmospheric conditions, climatologies of each range could be a very useful tool for long-range test planning. Such datasets can provide the probability density function of near-surface wind speed, percent cloud cover, temperature, precipitation,… (More)

- Judith D. Gardiner
- SIAM Review
- 1993

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