Perturbed Cusp Catastrophe in a Population Game: Spatial Economics with Locational Asymmetries
Kiyohiro Ikeda, Yuki Takayama, José Maria Gaspar, Minoru Osawa
Journal of Regional Science, vol. 62, 2022, p. 961-980.

Global Bifurcation Mechanism and Local Stability of Identical and Equidistant Regions: Application to Three Regions and More
José Maria Gaspar, Kiyohiro Ikeda, Mikihasa Onda
Regional Science and Urban Economics, vol. 86, 2021, p. .