The composition of derivatives has a fixed point
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Publication:1852448
zbMath1011.26006MaRDI QIDQ1852448
Tamás Keleti, Vilmos Prokaj, Márton Elekes
Publication date: 5 January 2003
Published in: Real Analysis Exchange (Search for Journal in Brave)
Continuity and related questions (modulus of continuity, semicontinuity, discontinuities, etc.) for real functions in one variable (26A15) Differentiation (real functions of one variable): general theory, generalized derivatives, mean value theorems (26A24) Fixed-point and coincidence theorems (topological aspects) (54H25) Classification of real functions; Baire classification of sets and functions (26A21)
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Level sets of differentiable functions of two variables with non-vanishing gradient ⋮ Differentiability versus continuity: Restriction and extension theorems and monstrous examples
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