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on the value distribution of the differential polynomial ϕfn f(k) − 1
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نویسنده
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sarkar anjan ,sahoo pulak
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منبع
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international journal of nonlinear analysis and applications - 2022 - دوره : 13 - شماره : 2 - صفحه:2909 -2922
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چکیده
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In the paper, we study the value distribution of the differential polynomial ϕfn f(k) −1, where f(z) is a transcendental meromorphic function, ϕ(z)(≠ 0) is a small function of f(z) and n(> 2), k(≥ 1) are integers. we prove an inequality which will give an upper bound for the characteristic function t(r, f) in terms of reduced counting function only.
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کلیدواژه
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value distribution ,meromorphic function ,differential polynomial
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آدرس
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adarsh krishak inter college, india, university of kalyani, department of mathematics, india
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پست الکترونیکی
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sahoopulak1@gmail.com
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Authors
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