Geodesic
On some convex combinations of biholomorphic mappings in several complex variables
Filomat, Tome 36 (2022) no. 16, p. 5503

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DOI

In this paper, our interest is devoted to study the convex combinations of the form (1 − λ) f + λ, where λ ∈ (0, 1), of biholomorphic mappings on the Euclidean unit ball B n in the case of several complex variables. Starting from a result proved by S. Trimble [26] and then extended by P.N. Chichra and R. Singh [3, Theorem 2] which says that if f is starlike such that Re[ f ′ (z)] > 0, then (1 − λ)z + λ f (z) is also starlike, we are interested to extend this result to higher dimensions. In the first part of the paper, we construct starlike convex combinations using the identity mapping on B n and some particular starlike mappings on B n. In the second part of the paper, we define the class L * λ (B n) and prove results involving convex combinations of normalized locally biholomorphic mappings and Loewner chains. Finally, we propose a conjecture that generalize the result proved by Chichra and Singh.
DOI : 10.2298/FIL2216503G
Classification : 32H02, 30C45
Keywords: Biholomorphic mappings, Convex sums, Starlike mappings, Herglotz vector field, Loewner chains 
Eduard Ştefan Grigoriciuc. On some convex combinations of biholomorphic mappings in several complex variables. Filomat, Tome 36 (2022) no. 16, p. 5503 . doi: 10.2298/FIL2216503G
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     title = {On some convex combinations of biholomorphic mappings in several complex variables},
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     year = {2022},
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     doi = {10.2298/FIL2216503G},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL2216503G/}
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