UKRAINIAN MATHEMATICAL JOURNAL, cilt.74, sa.1, ss.27-39, 2022 (SCI-Expanded)
We present sufficient conditions for the analyticity and univalence for functions defined by an integral operator. Then we refine the result to a quasiconformal extension criterion with the help of Becker's method. Further, new univalence criteria and significant relationships with other available results are given. A number of known univalence conditions follow if the parameters involved in the main results are specialized.