Nancy K Nichols
Nancy K Nichols
Professor of Applied Mathematics, University of Reading
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Robust pole assignment in linear state feedback
J Kautsky, NK Nichols, P Van Dooren
International Journal of control 41 (5), 1129-1155, 1985
Numerical methods for optimal control problems with state constraints
R Pytlak
Springer, 2006
Approximate Gauss–Newton methods for nonlinear least squares problems
S Gratton, AS Lawless, NK Nichols
SIAM Journal on Optimization 18 (1), 106-132, 2007
Numerical computation of an analytic singular value decomposition of a matrix valued function
A Bunse-Gerstner, R Byers, V Mehrmann, NK Nichols
Numerische Mathematik 60 (1), 1-39, 1991
Regularization of descriptor systems by derivative and proportional state feedback
A Bunse-Gerstner, V Mehrmann, NK Nichols
SIAM journal on matrix analysis and applications 13 (1), 46-67, 1992
Eigenstructure assignment in descriptor systems
L Fletcher, J Kautsky, N Nichols
IEEE Transactions on Automatic Control 31 (12), 1138-1141, 1986
Are patterns of growth adaptive?
R Sibly, P Calow, N Nichols
Journal of theoretical biology 112 (3), 553-574, 1985
Unbiased ensemble square root filters
DM Livings, SL Dance, NK Nichols
Physica D: Nonlinear Phenomena 237 (8), 1021-1028, 2008
Assimilation of data into an ocean model with systematic errors near the equator
MJ Bell, MJ Martin, NK Nichols
Quarterly Journal of the Royal Meteorological Society: A journal of the …, 2004
Duality, observability, and controllability for linear time-varying descriptor systems
SL Campbell, NK Nichols, WJ Terrell
Circuits, Systems and Signal Processing 10 (4), 455-470, 1991
On the representation error in data assimilation
T Janjić, N Bormann, M Bocquet, JA Carton, SE Cohn, SL Dance, ...
Quarterly Journal of the Royal Meteorological Society 144 (713), 1257-1278, 2018
Robust eigenstructure assignment in quadratic matrix polynomials: nonsingular case
NK Nichols, J Kautsky
SIAM Journal on Matrix Analysis and Applications 23 (1), 77-102, 2001
Feedback design for regularizing descriptor systems
A Bunse-Gerstner, R Byers, V Mehrmann, NK Nichols
Linear algebra and its applications 299 (1-3), 119-151, 1999
Robust pole assignment in singular control systems
J Kautsky, NK Nichols, EKW Chu
Linear Algebra and its Applications 121, 9-37, 1989
On the convergence of two-stage iterative processes for solving linear equations
NK Nichols
SIAM Journal on Numerical Analysis 10 (3), 460-469, 1973
Numerical methods for singular perturbation problems
B Kreiss, HO Kreiss
SIAM Journal on Numerical Analysis 18 (2), 262-276, 1981
Regularization of descriptor systems by output feedback
A Bunse-Gerstner, V Mehrmann, NK Nichols
IEEE transactions on Automatic Control 39 (8), 1742-1748, 1994
Correlated observation errors in data assimilation
LM Stewart, SL Dance, NK Nichols
International journal for numerical methods in fluids 56 (8), 1521-1527, 2008
Analytic benchmark solutions for open-channel flows
I MacDonald, MJ Baines, NK Nichols, PG Samuels
Journal of Hydraulic Engineering 123 (11), 1041-1045, 1997
Equidistributing meshes with constraints
J Kautsky, NK Nichols
SIAM Journal on Scientific and Statistical Computing 1 (4), 499-511, 1980
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