Toshio Hayami

most citedCoefficient conditions for harmonic close-to-convex functions

4 citations · 5 across the 3 of their papers we have counts for

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math.CV2013★ 4 cited

Coefficient conditions for harmonic close-to-convex functions

Toshio Hayami

New sufficient conditions, concerned with the coefficients of harmonic functions $f (z) = h (z) + g (z) ˉ$ in the open unit disk $U$ normalized by $f (0) = h (0) = h^{'} (0) - 1 = 0$ , for…

math.CV2013★ 1 cited

Starlikeness problems for certain analytic functions concerned with subordinations

Hitoshi Shiraishi, Shigeyoshi Owa, Toshio Hayami +2

Let A_n be the class of functions f(z) which are analytic in the open unit disk U} with f(0)=0, f'(0)=1, f"(0)=f"'(0)=...=f^{(n)}=0 and f^{(n+1)}\neq0. Applying the results due to…

math.CV2013

Coefficient estimates for Schwarz functions

Hitoshi Shiraishi, Toshio Hayami

Let $B$ be the class of functions $w (z)$ of the form $w (z) = k = 1 \sum \infty b_{k} z^{k}$ which are analytic and satisfy the condition $∣ w (z) ∣ < 1$ in the open unit dis…