Jim Walsh Professor of Mathematics 10 N. Professor Street King 202 Oberlin, OH, 44074 jawalsh@oberlin.edu
BS, University of Connecticut, 1980 MA, Fairfield University, 1985 MA, Boston University, 1988 PhD, Boston Unversity, 1991
Spring 2023 Teaching MATH 220   Discrete Mathematics, MWF 3:30-4:20 PM, King 239 MATH 301   Foundations of Analysis, MWF 10:00-10:50 AM, King 243

Spring 2023 Office Hours

Monday 11 AM - 12 noon
Tuesday 9:00-10:30 AM and 3:15-4:45 PM
(also by appointment)

Dynamical systems and its applications
Low-order climate modeling
Publications

Related work

• A. Nadeau, J.A. Walsh and E. Widiasih, Synchronous glacial cycles in a nonsmooth conceptual climate model with asymmetric hemispheres, SIAM Journal on Applied Dynamical Systems 20 (4) (2021), 2482-2515.
• J.A. Walsh and E. Widiasih, A discontinuous ODE model of the glacial cycles with diffusive heat transport, in the Special Issue "Applied Analysis of Ordinary Differential Equations," ed. S. Balasuriya, Mathematics 8 (3) (March 2020), doi:10.3390/math8030316.
• J.A. Walsh, The ocean and climate change: Stommel's conceptual model, in the Special Issue "Linking Differential Equations to Social Justice and Environmental Concerns" of The CODEE Journal, Vol. 12, Article 3 (2019).
• J.A. Walsh, Neoproterozoic glacial ages in a nonsmooth conceptual model, Journal of Physics Communications 2 (7) (2018) 075020.
• J.A. Walsh, Diffusive heat transport in Budyko's energy balance climate model with a dynamic ice line, Discrete and Continuous Dynamical Systems Series B 22 (7) (2017), 2687-2715.
• J.A. Walsh, E. Widiasih, J. Hahn and R. McGehee, Periodic orbits for a discontinuous vector field arising from a conceptual model of glacial cycles, Nonlinearity 29 (2016), 1843-1864.
• J.A. Walsh, Climate modeling in differential equations, The UMAP Journal 36 (4) (2015), 325-363.  
• J.A. Walsh and C. Rackauckas (OC `13), On the Budyko-Sellers energy balance climate model with ice line coupling, Discrete and Continuous Dynamical Systems Series B 20 (7) (2015), 2187-2216.  
• J.A. Walsh and E. Widiasih, A dynamics approach to a low order climate model, Discrete and Continuous Dynamical Systems Series B 19 (1) (2014), 257-279.  
• J.A. Walsh and R. McGehee, Modeling climate dynamically, The College Mathematics Journal 44 (5) (2013), 350-363. (A special issue devoted to the Mathematics of Planet Earth.)




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