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Singular Hopf Bifurcation in Systems with Two Slow Variables
Hopf bifurcation mixed mode oscillation singular perturbation
2015/8/25
Hopf bifurcations have been studied intensively in two dimensional vector fields with one slow
and one fast variable [′E. Benoˆıt et al., Collect. Math., 31 (1981), pp. 37–119; F. Dumortier...
Supercharacters, symmetric functions in noncommuting variables, and related Hopf algebras
noncommuting variables related Hopf algebras
2015/8/14
We identify two seemingly disparate structures: supercharacters, a useful way of doing
Fourier analysis on the group of unipotent uppertriangular matrices with coefficients in a finite
field, and th...
Life-span of clautions to ssical solhyperbolic geometric flow in two space variables with slow decay initial data
hyperbolic geometric °ow Riemann surface Cauchy problem classical solution life-span
2018/4/20
In this paper we investigate the life-span of classical solutions to the hyperbolic geometric °ow in two space variables with slow decay initial data. By establishing some new estimates on the solutio...