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math.CV2012★ 3 cited
Rescaling principle for isolated essential singularities of quasiregular mappings
Yûsuke Okuyama, Pekka Pankka
We establish a rescaling theorem for isolated essential singularities of quasiregular mappings. As a consequence we show that the class of closed manifolds receiving a quasiregular…
math.NT2012
Approximation of Lyapunov exponents in non-archimedean and complex dynamics
Yûsuke Okuyama
We give two kinds of approximation of Lyapunov exponents of rational functions of degree more than one on the projective line over more general fields than that of complex numbers.