Andrew Steyer
R&D S&E, Computer Science
R&D S&E, Computer Science
Biography
Andrew is a mathematician in Org. 1442 (Computational Mathematics). He graduated in 2016 with a PhD in Mathematics from the University of Kansas with a focus on dynamical systems and time-integration. Since 2016 he has worked at Sandia as a postdoc and a staff member on various applied math and computational problems including time-integration of multiphysics problems, machine learning, and computational dynamical systems in various applications including atmospheric modeling, fluid dynamics, plasma physics, robotics, and structure mechanics.
Education
PhD Mathematics (2016), University of Kansas.
MA Mathematics (2013), University of Kansas.
BS Mathematics (2009), University of Minnesota.
Publications
Andrew Steyer, (2022). Computational Response Theory for Dynamics https://doi.org/10.2172/1898244 Publication ID: 80180
Nathaniel Goldberg, Sarah Demsky, Abdelrahman Youssef, Steven Carter, Deborah Fowler, Nathan Jackson, Robert Kuether, Andrew Steyer, (2021). Experimental and Computational Investigation of Nonlinear Dynamics of a Simplified Bearing-and-Shaft Assembly https://www.osti.gov/servlets/purl/1892458 Publication ID: 76283
Andrew Steyer, Robert Kuether, (2021). Connecting Functions of Nonlinear Ordinary Differential Equations https://doi.org/10.2172/1870270 Publication ID: 78596
Oksana Guba, Mark Taylor, Andrew Bradley, Peter Bosler, Andrew Steyer, (2021). A framework to evaluate IMEX schemes for atmospheric models https://doi.org/10.2172/1869551 Publication ID: 78539
Andrew Steyer, Cassidy Krause, (2021). IMEX vs ETD integrators in a nonhydrostatic atmosphere model https://doi.org/10.2172/1853866 Publication ID: 77399
Cassidy Krause, Andrew Steyer, (2021). Design and Implementation of ETD Methods for Nonhydrostatic Atmosphere Models https://doi.org/10.2172/1847574 Publication ID: 77373
Oksana Guba, Mark Taylor, Andrew Bradley, Peter Bosler, Andrew Steyer, (2020). A framework to evaluate IMEX schemes for atmospheric models Geoscientific Model Development https://doi.org/10.5194/gmd-13-6467-2020 Publication ID: 73599
Andrew Steyer, (2020). Connecting functions for efficient computation of nonlinear dynamics https://doi.org/10.2172/1884464 Publication ID: 72284
Robert Kuether, Andrew Steyer, (2020). Multi-Harmonic Balance with Preconditioned Iterative Solver https://www.osti.gov/servlets/purl/1882352 Publication ID: 72285
Robert Kuether, Andrew Steyer, (2020). Multi-Harmonic Balance with Preconditioned Iterative Solver https://doi.org/10.2172/1837619 Publication ID: 72360
Benjamin Hillman, Peter Caldwell, Andrew Salinger, Luca Bertagna, Hassan Beydoun, Bogenschutz. Peter, Andrew Bradley, Aaron Donahue, Christopher Eldred, James Foucar, Chris Golaz, Oksana Guba, Robert Jacob, Jeff Johnson, Noel Keen, Jayesh Krishna, Wuyin Lin, Weiran Liu, Kyle Pressel, Balwinder Singh, Andrew Steyer, Mark Taylor, Chris Terai, Paul Ullrich, Danqing Wu, Xingqui Yuan, (2020). SCREAM: a performance-portable global cloud-resolving model based on the Energy Exascale Earth System Model https://www.osti.gov/servlets/purl/1807360 Publication ID: 73705
Mark Taylor, Oksana Guba, Andrew Steyer, Paul Ullrich, David Hall, Christopher Eldred, (2020). An Energy Consistent Discretization of the Nonhydrostatic Equations in Primitive Variables Journal of Advances in Modeling Earth Systems https://doi.org/10.1029/2019MS001783 Publication ID: 73562
Andrew Steyer, (2019). IMEX and ETD Methods for NonHydrostatic Atmosphere https://www.osti.gov/servlets/purl/1646303 Publication ID: 66386
Andrew Steyer, Cassidy Krause, (2019). Exponential Integrators for the HOMME-NH Nonhydrostatic Dycore https://www.osti.gov/servlets/purl/1721477 Publication ID: 66413
Andrew Steyer, (2019). Time-Stepping the in E3SM nonhydrostatic atmsophere dynamic core https://www.osti.gov/servlets/purl/1646141 Publication ID: 65982
Andrew Steyer, (2019). A Family of Second and Third Order Implicit-explicit Runge-Kutta Methods for Stiff Time-dependent Partial Differential Equations https://www.osti.gov/servlets/purl/1601928 Publication ID: 67064
Andrew Steyer, (2018). Progress on the HOMME-NH nonhydrostatic atmosphere dycore https://www.osti.gov/servlets/purl/1573577 Publication ID: 59998
Andrew Steyer, Erik Van Vleck, (2018). A Lyapunov and Sacker–Sell spectral stability theory for one-step methods BIT Numerical Mathematics https://doi.org/10.1007/s10543-018-0704-2 Publication ID: 61602
Andrew Steyer, Erik Van Vleck, (2018). Underlying one-step methods and nonautonomous stability of general linear methods Discrete and Continuous Dynamical Systems – Series B https://doi.org/10.3934/dcdsb.2018108 Publication ID: 61629
Andrew Steyer, Mark Taylor, Oksana Guba, (2018). Implicit-Explicit Time-Integration in the E3SM-Homme Nonhydrostatic Atmosphere Model https://www.osti.gov/servlets/purl/1562350 Publication ID: 58827
Andrew Steyer, (2017). A nonhydrostatic model for atmospheric motion in ACME-HOMME https://www.osti.gov/servlets/purl/1470836 Publication ID: 58376
Andrew Steyer, Erik Van Vleck, (2017). What stability spectra do general linear methods approximate? https://www.osti.gov/biblio/1429773 Publication ID: 56193
Andrew Steyer, (2017). A nonautonomous spectral stability theory for ordinary differential initial value problem solvers https://www.osti.gov/servlets/purl/1457973 Publication ID: 56317
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