Hostname: page-component-6bb9c88b65-bcq64 Total loading time: 0 Render date: 2025-07-24T05:34:57.289Z Has data issue: false hasContentIssue false

Newton–Maclaurin type inequalities for linear combinations of elementary symmetric functions

Published online by Cambridge University Press:  02 April 2025

Shuqi Hu
Affiliation:
School of Mathematical Science, Jilin University, Changchun, Jilin Province, 130012, China (husq21@mails.jlu.edu.cn)
Changyu Ren*
Affiliation:
School of Mathematical Science, Jilin University, Changchun, China (rency@jlu.edu.cn) (corresponding author)
Ziyi Wang
Affiliation:
School of Mathematical Science, Jilin University, Changchun, China (ziyiw23@mails.jlu.edu.cn)
*
*Corresponding author.

Abstract

In this paper, we establish Newton–Maclaurin-type inequalities for functions arising from linear combinations of primitively symmetric polynomials. This generalization extends the classical Newton–Maclaurin inequality to a broader class of functions.

Information

Type
Research Article
Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of The Royal Society of Edinburgh

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

Dong, H.. Hessian equations with elementary symmetric functions. Comm. Partial Differential Equations. 31 (2006), 10051025.Google Scholar
Dong, W.. Second order estimates for a class of complex Hessian equations on Hermitian manifolds. J. Funct. Anal. 281 (2021), .Google Scholar
Ellard, R. and Smigoc, H.. Families of Newton-like inequalities for sets of self-conjugate complex numbers. Linear Algebra Appl. 597 (2020), 4668.CrossRefGoogle Scholar
Garding, L.. An inequality for hyperbolic polynomials. J. Math. Mech. 8 (1959), 957965.Google Scholar
Guan, B. and Guan, P.. Convex hypersurfaces of prescribed curvature. Ann. Math. 156 (2002), 655674.CrossRefGoogle Scholar
Guan, P. and Ma, X.. The Christoffel-Minkowski problem I: convexity of solutions of a Hessian equation. Invent. Math. 151 (2003), 553577.Google Scholar
Guan, P., Ma, X. and Zhou, F.. The Christoffel-Minkowski problem III: existence and convexity of admissible solutions. Comm. Pure Appl. Math. 59 (2006), 13521376.CrossRefGoogle Scholar
Guan, P. and Zhang, X.. A class of curvature type equations. Pure Appl. Math. Q. 17 (2021), 865907.CrossRefGoogle Scholar
Hardy, G., Littlewood, J. and Polya, G.. Inequalities, 2nd ed., Cambridge Mathematical Library. (Cambridge University Press, 1952).Google Scholar
Harvey, F. R. and Lawson, Jr H. B.. Calibrated geometries. Acta. Math. 148 (1982), 47157.Google Scholar
Huisken, G. and , C. Sinestrari, Convexity estimates for mean curvature flow and singularities of mean convex surfaces. Acta Math. 183 (1999), 4570.CrossRefGoogle Scholar
Krylov, N. V.. On the general notion of fully nonlinear second order elliptic equation. Trans. Amer. Math. Soc. 347 (1995), 857895.CrossRefGoogle Scholar
Li, C., Ren, C. and Wang, Z.. Curvature estimates for convex solutions of some fully nonlinear Hessian-type equations. Calc. Var. Partial Differ. Equ. 58 (2019), .CrossRefGoogle Scholar
Liu, Y. and Ren, C.. Pogorelov type C 2 estimates for Sum Hessian equations and a rigidity theorem. Journal of Functional Analysis. 284 (2023), .CrossRefGoogle Scholar
Maclaurin, C.. A second letter to Martin Folkes, esq. concerning the roots of equations, with the demonstration of other rules in algebra. Phil. Transactions. 36 (1729), 5996.Google Scholar
Menon, K. V.. Inequalities for symmetric functions. Duke Math. J. 35 (1968), 3745.Google Scholar
Newton, I.. Arithmetica universalis; sive De compositione et resolutione arithmetica liber. Cui accessit Halleiana æquationum radices arithmetice inveniendi methodus. In usum juventutis Academicæ. Typis Academicis, Cantabrigiæ; Impensis B. Tooke, Bibliopolae, Londini, 1707.Google Scholar
Niculescu, C. P.. A new look at Newton’s inequalities. J. Inequal. Pure Appl. Math. 1 (2000), 114.Google Scholar
Ren, C.. A generalization of Newton Maclaurin’s Inequalities. Int. Math. Res. Not. 2024 (2024), 37993822.Google Scholar
Ren, C. and Wang, Z.. The global curvature estimate for the n − 2 Hessian equation. Calc. Var. Partial Differ. Equ. 62 (2023), .Google Scholar
Rosset, S.. Normalized symmetric functions, Newton’s inequalities, and a new set of stronger inequalities. Am. Math. Mon. 96 (1989), 815819.Google Scholar
Sylvester, J.. On an elementary proof and generalization of Sir Isaac Newton’s hitherto undemonstrated rule for discovery of imaginary roots. Proc. of the London Math. Soc., Vol.1, (1865–1866), (Cambridge Univ. Press, 1908). See also The Collected Mathematical Papers of James Joseph Sylvester, vol II (1854–1873), pp. 498–513, Cambridge Univ. Press, 1908.Google Scholar
Zhou, J.. The interior gradient estimate for a class of mixed Hessian curvature equations. J. Korean Math. Soc. 59 (2022), 5369.Google Scholar