We study the growth rates of the derivatives of an arbitrary algebraic polynomial in bounded and inbounded regions of the complex plane in weighted Lebesgue spaces.
Similar content being viewed by others
References
F. G. Abdullayev and V. V. Andrievskii, “On the orthogonal polynomials in the domains with K–quasiconformal boundary,” Izv. Akad. Nauk Azerbaĭdzhan. SSR Ser. Fiz.-Tekh. Mat. Nauk, 1, 3–7 (1983).
F. G. Abdullayev, “On some properties on orthogonal polynomials over the regions of complex plane 1,” Ukr. Math. Zh., 52, No. 12, 1587–1595 (2000); English translation: Ukr. Math. J., 52, No. 12, 1807–1817 (2000).
F. G. Abdullayev, “On the interference of the weight boundary contour for orthogonal polynomials over the region,” J. Comput. Anal. Appl., 6, No. 1, 31–42 (2004).
F. G. Abdullayev and P. Özkartepe, “An analogue of the Bernstein–Walsh lemma in Jordan regions of the complex plane,” J. Inequal. Appl., 2013, Article 570 (2013).
F. G. Abdullayev and P. Özkartepe, “On the behavior of the algebraic polynomial in unbounded regions with piecewise Dini-smooth boundary,” Ukr. Math. Zh., 66, No. 5, 579–597 (2014); English translation: Ukr. Math. J., 66, No. 5, 645–665 (2014).
F. G. Abdullayev, P. Özkartepe, and C. D. Gün, “Uniform and pointwise polynomial inequalities in regions without cusps in the weighted Lebesgue space,” Bull. TICMI, 18, No. 1, 146–167 (2014).
F. G. Abdullayev, C. D. Gün, and N. P. Ozkartepe, “Inequalities for algebraic polynomials in regions with exterior cusps,” J. Nonlin. Funct. Anal., No. 3, 1–32 (2015).
F. G. Abdullayev and P. Özkartepe, “Uniform and pointwise polynomial inequalities in regions with cusps in the weighted Lebesgue space,” Jaen J. Approx., 7, No. 2, 231–261 (2015).
F. G. Abdullayev and P. Özkartepe, “On the growth of algebraic polynomials in the whole complex plane,” J. Korean Math. Soc., 52, No. 4, 699–725 (2015).
F. G. Abdullayev and N. P. Özkartepe, “Polynomial inequalities in Lavrentiev regions with interior and exterior zero angles in the weighted Lebesgue space,” Publ. Inst. Math. (Beograd), 100 (114), No. 2, 209–227 (2016).
F. G. Abdullayev and N. P. Özkartepe, “Interference of the weight and boundary contour for algebraic polynomials in the weighted Lebesgue spaces. I,” Ukr. Math. Zh., 68, No. 10, 1365–1379 (2017); English translation: Ukr. Math. J., 68, No. 10, 1574–1590 (2017); DOI:https://doi.org/10.1007/s11253-017-1313-y.
F. G. Abdullayev, “Polynomial inequalities in regions with corners in the weighted Lebesgue spaces,” Filomat, 31, No. 18, 5647–5670 (2017).
F. G. Abdullayev, M. Imashkyzy, and G. Abdullayeva, “Bernstein–Walsh type inequalities in unbounded regions with piecewise asymptotically conformal curve in the weighted Lebesgue space,” Ukr. Mat. Visn., 14, No. 4, 515–531 (2017); English translation: J. Math. Sci. (N.Y.), 234, No. 1, 35–48 (2018); DOI: 10.1007/s10958-018-3979-6.
F. G. Abdullayev, T. Tunc, and G. A. Abdullayev, “Polynomial inequalities in quasidisks on weighted Bergman space,” Ukr. Math. Zh., 69, No. 5, 582–598 (2017); English translation: Ukr. Math. J., 69, No. 5, 675–695 (2017).
F. G. Abdullayev, D. Şimşek, N. Saypıdınova, and Z. Tashpaeva, “Polynomial inequalities in regions with piecewise asymptotically conformal curve in the weighted Lebesgue space,” Adv. Anal., 3, No. 2, 100–112 (2018).
F. G. Abdullayev and N. P. Özkartepe, “The uniform and pointwise estimates for polynomials on the weighted Lebesgue spaces in the general regions of complex plane,” Hacet. J. Math. Stat., 48, No. 1, 87–101 (2019).
F. G. Abdullayev, P. Özkartepe, and T. Tunç, “Uniform and pointwise estimates for algebraic polynomials in regions with interior and exterior zero angles,” Filomat, 33, No. 2, 403–413 (2019).
F. G. Abdullayev and C. D. Gün, “Bernstein–Nikolskii-type inequalities for algebraic polynomials in Bergman space in regions of complex plane,” Ukr. Math. Zh., 73, No. 4, 439–454 (2021); English translation: Ukr. Math. J., 73, No. 4, 513–531 (2021).
F. G. Abdullayev and C. D. Gün, “Bernstein–Walsh-type inequalities for derivatives of algebraic polynomials,” Bull. Korean Math. Soc., 59, No. 1, 45–72 (2022).
F. G. Abdullayev, “Bernstein–Walsh-type inequalities for derivatives of algebraic polynomials in quasidiscs,” Open Math., 19, No. 1, 1847–1876 (2021).
V. V. Andrievskii, V. I. Belyi, and V. K. Dzyadyk, Conformal Invariants in Constructive Theory of Functions of Complex Plane, World Federation Publishers Company, Atlanta, GA (1995).
V. V. Andrievskii, “Weighted polynomial inequalities in the complex plane,” J. Approx. Theory, 164, No. 9, 1165–1183 (2012).
S. Balcı, M. Imashkyzy, and F. G. Abdullayev, “Polynomial inequalities in regions with interior zero angles in the Bergman space,” Ukr. Math. Zh., 70, No. 3, 318–336 (2018); English translation: Ukr. Math. J., 70, No. 3, 362–384 (2018).
D. Benko, P. Dragnev, and V. Totik, “Convexity of harmonic densities,” Rev. Mat. Iberoam, 28, No. 4, 1–14 (2012).
S. N. Bernstein, “Sur la limitation des dérivées des polynômes,” C. R. Acad. Sci. Paris, 190, 338–341 (1930).
P. P. Belinskii, General Properties of Quasiconformal Mappings [in Russian], Nauka, Sib. otd., Novosibirsk (1974).
V. K. Dzyadyk, Introduction to the Theory of Uniform Approximation of Functions by Polynomials, Nauka, Moscow (1977).
E. Hille, G. Szegö, and J. D. Tamarkin, “On some generalization of a theorem of A. Markoff,” Duke Math. J., 3, 729–739 (1937).
O. Lehto and K. I. Virtanen, Quasiconformal Mapping in the Plane, Springer, Berlin (1973).
F. D. Lesley, “Hölder continuity of conformal mappings at the boundary via the strip method,” Indiana Univ. Math. J., 31, 341–354 (1982).
D. I. Mamedhanov, “Inequalities of S. M. Nikol’skii type for polynomials in the complex variable on curves,” Sov. Math. Dokl., 15, 34–37 (1974).
G. V. Milovanovic, D. S. Mitrinovic, and Th. M. Rassias, Topics in Polynomials: Extremal Problems, Inequalities, Zeros, World Scientific, Singapore (1994).
P. Nevai and V. Totik, “Sharp Nikolskii inequalities with exponential weights,” Anal. Math., 13, No. 4, 261–267 (1987).
S. M. Nikol’skii, Approximation of Function of Several Variable and Imbedding Theorems, Springer-Verlag, New York (1975).
N. P. Özkartepe, C. D. Gün, and F. G. Abdullayev, “Bernstein–Walsh-type inequalities for derivatives of algebraic polynomials on the regions of complex plane” (to appear).
Ch. Pommerenke, Univalent Functions, Vandenhoeck & Ruprecht, Göttingen (1975).
Ch. Pommerenke, Boundary Behaviour of Conformal Maps, Springer-Verlag, Berlin (1992).
I. Pritsker, “Comparing norms of polynomials in one and several variables,” J. Math. Anal. Appl., 216, 685–695 (1997); DOI:https://doi.org/10.1006/jmaa.1997.5699.
N. Stylianopoulos, “Strong asymptotics for Bergman polynomials over domains with corners and applications,” Constr. Approx., 38, No. 1, 59–100 (2012).
G. Szegö and A. Zygmund, “On certain mean values of polynomials,” J. Analyse Math., 3, No. 1, 225–244 (1953).
S. E. Warschawski, “On Hölder continuity at the boundary in conformal maps,” J. Math. Mech., 18, 423–427 (1968).
J. L. Walsh, Interpolation and Approximation by Rational Functions in the Complex Domain, American Mathematical Society, Providence, R.I. (1960).
Author information
Authors and Affiliations
Corresponding author
Additional information
Published in Ukrains’kyi Matematychnyi Zhurnal, Vol. 74, No. 5, pp. 582–598, May, 2022. Ukrainian DOI: https://doi.org/10.37863/umzh.v74i5.7052.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Abdullayev, F.G., Imashkyzy, M. On the Growth of Derivatives of Algebraic Polynomials in a Weighted Lebesgue Space. Ukr Math J 74, 664–684 (2022). https://doi.org/10.1007/s11253-022-02093-3
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11253-022-02093-3