Amos S. Lawless

Publication Activity (10 Years)

Years Active: 2007-2024
Publications (10 Years): 10

Top Topics

Agent Based Simulations

Data Assimilation

Dirichlet Distribution

Condition Number

Top Venues

Numer. Linear Algebra Appl.

SIAM J. Appl. Dyn. Syst.

Publications

Shaerdan Shataer, Amos S. Lawless, Nancy K. Nichols
Conditioning of hybrid variational data assimilation. Numer. Linear Algebra Appl. 31 (2) (2024)
Shaerdan Shataer, Amos S. Lawless, Nancy K. Nichols
The Conditioning of Hybrid Variational Data Assimilation. CoRR (2023)
Jemima M. Tabeart, Sarah L. Dance, Amos S. Lawless, Nancy K. Nichols, Joanne A. Waller
New bounds on the condition number of the Hessian of the preconditioned variational data assimilation problem. Numer. Linear Algebra Appl. 29 (1) (2022)
Jason A. Otkin, Roland W. E. Potthast, Amos S. Lawless
Nonlinear Conditional Model Bias Estimation for Data Assimilation. SIAM J. Appl. Dyn. Syst. 20 (1) (2021)
Ieva Dauzickaite, Amos S. Lawless, Jennifer A. Scott, Peter Jan van Leeuwen
Randomised preconditioning for the forcing formulation of weak constraint 4D-Var. CoRR (2021)
Ieva Dauzickaite, Amos S. Lawless, Jennifer A. Scott, Peter Jan van Leeuwen
On preconditioning the state formulation of incremental weak constraint 4D-Var. CoRR (2021)
Jemima M. Tabeart, Sarah L. Dance, Amos S. Lawless, Nancy K. Nichols, Joanne A. Waller
The conditioning of least squares problems in preconditioned variational data assimilation. CoRR (2020)
Ieva Dauzickaite, Amos S. Lawless, Jennifer A. Scott, Peter Jan van Leeuwen
Spectral estimates for saddle point matrices arising in weak constraint four-dimensional variational data assimilation. Numer. Linear Algebra Appl. 27 (5) (2020)
Ieva Dauzickaite, Amos S. Lawless, Jennifer A. Scott, Peter Jan van Leeuwen
Spectral estimates for saddle point matrices arising in weak constraint four-dimensional variational data assimilation. CoRR (2019)
Jemima M. Tabeart, Sarah L. Dance, Stephen A. Haben, Amos S. Lawless, Nancy K. Nichols, Joanne A. Waller
The conditioning of least-squares problems in variational data assimilation. Numer. Linear Algebra Appl. 25 (5) (2018)
Serge Gratton, Amos S. Lawless, Nancy K. Nichols
Approximate Gauss-Newton Methods for Nonlinear Least Squares Problems. SIAM J. Optim. 18 (1) (2007)