On the Widom factors for Lp extremal polynomials

G Alpan, M Zinchenko - Journal of Approximation Theory, 2020 - Elsevier
We continue our study of the Widom factors for L p (μ) extremal polynomials initiated in
(Alpan and Zinchenko, 2020). In this work we characterize sets for which the lower bounds …

[HTML][HTML] Sharp lower bounds for the Widom factors on the real line

G Alpan, M Zinchenko - Journal of Mathematical Analysis and Applications, 2020 - Elsevier
We derive lower bounds for the L p (μ) norms of monic extremal polynomials with respect to
compactly supported probability measures μ. We obtain a sharp universal lower bound for …

Some asymptotics for extremal polynomials

G Alpan, A Goncharov, B Hatinoğlu - Computational Analysis: AMAT …, 2016 - Springer
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[HTML][HTML] Widom factors for generalized Jacobi measures

G Alpan - Journal of Mathematical Analysis and Applications, 2022 - Elsevier
We study optimal lower and upper bounds for Widom factors W∞, n (K, w) associated with
Chebyshev polynomials for the weights w (x)= 1+ x and w (x)= 1− x on compact subsets of …

Asymptotic properties of Jacobi matrices for a family of fractal measures

G Alpan, A Goncharov, AN Şimşek - Experimental Mathematics, 2018 - Taylor & Francis
We study the properties and asymptotics of the Jacobi matrices associated with equilibrium
measures of the weakly equilibrium Cantor sets. These family of Cantor sets were defined …

Asymptotics of extremal polynomials for some special cases

G Alpan - 2017 - search.proquest.com
ASYMPTOTICS OF EXTREMAL POLYNOMIALS FOR SOME SPECIAL CASES Page 1
ASYMPTOTICS OF EXTREMAL POLYNOMIALS FOR SOME SPECIAL CASES a …

Numerical study of orthogonal polynomials for fractal measures

AN Şimşek - 2016 - search.proquest.com
In recent years, potential theory has an essential effect on approximation theory and
orthogonal polynomials. Basic concepts of the modern theory of general orthogonal …