Results 71 to 80 of about 50,277 (117)

Necessary and sufficient conditions for a bivariate mean of three parameters to be the Schur $m$-power convex [PDF]

Contributions to Mathematics, 2022
Hong-Ping Yin, Xi-Min Liu, Huan-Nan Shi, Feng Qi   +3 more
doaj   +1 more source

The Schur transform of a generalized Schur function and operator realizations [PDF]

, 2005
Het proefschrift van Gerald Wanjala bouwt voort op werk van de wiskundige Issai Schur uit het begin van de vorige eeuw. Destijds vormde dit het beginpunt van een nieuw onderdeel in de wiskunde: de Schur-analyse.
Wanjala, Gerald,, Wanjala, Gerald, Wanjala, G, Gerald Wanjala   +3 more
core   +15 more sources

Schur-convex functions and isoperimetric inequalities [PDF]

Proceedings of the American Mathematical Society, 1998
In this paper, we establish some analytic inequalities for Schur-convex functions that are made of solutions of a second order nonlinear differential equation. We apply these analytic inequalities to obtain some geometric inequalities.
openaire   +1 more source

Schur-convexity of the complete elementary symmetric function

Journal of Inequalities and Applications, 2006
We prove that the complete elementary symmetric function and the function are Schur-convex functions in , where are nonnegative integers, , . For which, some inequalities are established by use of the theory of majorization. A problem given by K.
Guan Kaizhong
doaj  

A Unified Majorization Approach to Extremal General Zeroth-Order Randić Indices

Mathematics
The general zeroth-order Randić index Rα0(G)=∑v∈Vd(v)α (α≠0,1) unifies several classical indices, including the first Zagreb (α=2), forgotten (α=3), and inverse degree (α=−1) indices.
Darko Dimitrov
doaj   +1 more source

Some bounds on the coupon collector problem with universal coupon

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
We consider a generalization of the coupon collector problem with unequal probabilities, such that there are two additional coupons in the coupon set: one that speeds up the coupon collection process, and the one that slows it down.
Jocković Jelena, Todić Bojana
doaj   +1 more source

Positivity properties for q-Schur algebras. [PDF]

, 1997
We prove Du's positivity conjecture for the canonical basis of the q-Schur algebra, using elementary arguments and the positivity result for Lusztig's canonical basis for U+q(sln).
Green, R. M.
core   +2 more sources

Schur convexity and Hadamard's inequality [PDF]

Mathematical Inequalities & Applications, 2010
Yuming Chu, Gendi Wang, Xiaohui Zhang
openaire   +1 more source

Schur-Convexity of Two Types of One-Parameter Mean Values in Variables

Journal of Inequalities and Applications, 2007
We establish Schur-convexities of two types of one-parameter mean values in variables. As applications, Schur-convexities of some well-known functions involving the complete elementary symmetric functions are obtained.
Zhang Zhi-Hua, Zhang Xiao-Ming, Zheng Ning-Guo   +2 more
doaj  

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Majorization and Schur Convexity with Respect to Partial Orders

Mathematics of Operations Research, 1993
Majorization and Schur convexity constitute an important tool for establishing inequalities, in particular, due to the Schur-Ostrowski Theorem which provides a simple characterization of Schur convex functions through local two-coordinate conditions. However, the usefulness of the approach is limited by two stringent requirements.
Frank K Hwang, Uriel G Rothblum
exaly   +3 more sources