Boundary behaviour of conformal maps, estimates of the integral means spectrum.
Main publications:
H. Hedenmalm, I. Kayumov, “On the Makarov law of the iterated logarithm”, Proceedings of the American Mathematical Society, 135:7 (2007), 2235–2248
I. R. Kayumov, “Lower estimates for integral means of univalent functions”, Arkiv for Matematik, 44:1 (2006), 104–110
И. Р. Каюмов, “Сходимость рядов наипростейших дробей в $L_p(\mathbb R)$”, Матем. сб., 202:10 (2011), 87–98
D. V. Maklakov, I. R. Kayumov, “Exact bounds for lift-to-drag ratios of profiles in the Helmholtz–Kirchhoff flow”, European Journal of Applied Mathematics,, 25:2 (2014), 231–254
I.R. Kayumov, K.-J. Wirths, “Coefficients problems for Bloch functions””, Analysis and Mathematical Physics, 9:3 (2019), 1069–1085
