Browsing by Subject "Gamma and psi functions"

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    • Article  

      On a conjecture for trigonometric sums and starlike functions, II 

      Koumandos, S.; Lamprecht, M. (2010)
      We prove the case ρ=1/4 of the following conjecture of Koumandos and Ruscheweyh: let snμ(z)=Σk=0n(μ)k/ k!zk, and for ρε(0,1] let μ≤(ρ) be the unique solution of 0(ρ+1)πsin(t-ρπ)tμ-1dt =0 in (0,1]. Then we have pipearg[(1 ...