Improved Bloch and Landau constants for meromorphic functions
Canadian mathematical bulletin, Tome 66 (2023) no. 4, pp. 1269-1273

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Let ${\mathbb D}$ be the open unit disk, and let $\mathcal {A}(p)$ be the class of functions f that are holomorphic in ${\mathbb D}\backslash \{p\}$ with a simple pole at $z=p\in (0,1)$, and $f'(0)\neq 0$. In this article, we significantly improve lower bounds of the Bloch and the Landau constants for functions in ${\mathcal A}(p)$ which were obtained in Bhowmik and Sen (2023, Monatshefte für Mathematik, 201, 359–373) and conjecture on the exact values of such constants.
DOI : 10.4153/S0008439523000346
Mots-clés : Bloch constant, Landau constant, meromorphic function
Bhowmik, Bappaditya; Sen, Sambhunath. Improved Bloch and Landau constants for meromorphic functions. Canadian mathematical bulletin, Tome 66 (2023) no. 4, pp. 1269-1273. doi: 10.4153/S0008439523000346
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     author = {Bhowmik, Bappaditya and Sen, Sambhunath},
     title = {Improved {Bloch} and {Landau} constants for meromorphic functions},
     journal = {Canadian mathematical bulletin},
     pages = {1269--1273},
     year = {2023},
     volume = {66},
     number = {4},
     doi = {10.4153/S0008439523000346},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008439523000346/}
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