Let p(z)=be a polynomial degree n and let Then accord-ing to Bernstein's inequality ||p'||<n||p||.It is a well known open problem to obtain inequality analogous to Bernstein's inequality for the class I...Let p(z)=be a polynomial degree n and let Then accord-ing to Bernstein's inequality ||p'||<n||p||.It is a well known open problem to obtain inequality analogous to Bernstein's inequality for the class IIn of polynomials satisfying p(z)≡znp(1/z)Here we obtain an inequality analogous to Bernstein's inequality for a subclass of IIn Our results include several of the known results as special cases.展开更多
文摘Let p(z)=be a polynomial degree n and let Then accord-ing to Bernstein's inequality ||p'||<n||p||.It is a well known open problem to obtain inequality analogous to Bernstein's inequality for the class IIn of polynomials satisfying p(z)≡znp(1/z)Here we obtain an inequality analogous to Bernstein's inequality for a subclass of IIn Our results include several of the known results as special cases.