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Q33Section B (Part B)33 of 120

Polynomial with a bounded contour-integral of modulus

Let f:C→Cf:\mathbb C\to\mathbb C be a polynomial map. For R>0R>0, let γR:[0,1]→C\gamma_R:[0,1]\to\mathbb C be the map t↦Re2πitt\mapsto Re^{2\pi it}. Suppose that there exists c∈Rc\in\mathbb R such that

∫01∣(f∘γR)(t) γR′(t)∣ dt⟶cas R⟶∞.\int_0^1\big|(f\circ\gamma_R)(t)\,\gamma_R'(t)\big|\,dt\longrightarrow c\quad\text{as }R\longrightarrow\infty.

Which of the following statements is FALSE?

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