A. N. Medvedev, “Generalized pointwise Hölder type conditions of order less than two for an analytic function and its modulus”, Zap. Nauchn. Sem. POMI, 456 (2017), 155–159; J. Math. Sci. (N. Y.), 234:3 (2018), 369–372
2016
2.
A. N. Medvedev, “Comparison of boundary smoothness for an analytic function and for its modulus in the case of the upper half-plane”, Zap. Nauchn. Sem. POMI, 447 (2016), 75–89; J. Math. Sci. (N. Y.), 229:5 (2018), 534–544
2015
3.
A. N. Medvedev, “Drop of the smoothness of an outer function compared to the smoothness of its modulus, under restrictions on the size of boundary values”, Zap. Nauchn. Sem. POMI, 434 (2015), 101–115; J. Math. Sci. (N. Y.), 215:5 (2016), 608–616
A. V. Vasin, S. V. Kislyakov, A. N. Medvedev, “Local smoothness of an analytic function compared to the smoothness of its modulus”, Algebra i Analiz, 25:3 (2013), 52–85; St. Petersburg Math. J., 25:3 (2014), 397–420
