Results 11 to 20 of about 120,378 (265)

Optimal power mean bounds for the second Yang mean

Journal of Inequalities and Applications, 2016
In this paper, we present the best possible parameters p and q such that the double inequality M p ( a , b ) < V ( a , b ) < M q ( a , b ) $$ M_{p}(a,b)< V(a,b)< M_{q}(a,b) $$ holds for all a , b > 0 $a, b>0$ with a ≠ b $a\neq b$ , where M r ( a , b ) = [
Jun-Feng Li, Zhen-Hang Yang, Yu-Ming Chu
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Optimal bounds for two Sándor-type means in terms of power means

Journal of Inequalities and Applications, 2016
In the article, we prove that the double inequalities M α ( a , b ) < S Q A ( a , b ) < M β ( a , b ) $M_{\alpha }(a,b)< S_{QA}(a,b)< M_{\beta}(a,b)$ and M λ ( a , b ) < S A Q ( a , b ) < M μ ( a , b ) $M_{\lambda }(a,b)< S_{AQ}(a,b)< M_{\mu}(a,b)$ hold ...
Tie-Hong Zhao, Wei-Mao Qian, Ying-Qing Song   +2 more
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Optimal two-parameter geometric and arithmetic mean bounds for the Sándor–Yang mean

Journal of Inequalities and Applications, 2019
In the article, we provide the sharp bounds for the Sándor–Yang mean in terms of certain families of the two-parameter geometric and arithmetic mean and the one-parameter geometric and harmonic means.
Wei-Mao Qian, Yue-Ying Yang, Hong-Wei Zhang, Yu-Ming Chu   +3 more
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Comparative Study on Main Crop Yield Separation Methods

应用气象学报, 2020
Crop yield separation is one of the important steps in analyzing the impact of meteorological factors on yield. Statistical rice yield data for 1985-2018 from 24 counties in Jiangsu are used to analyze the rationality of different separation methods. Six
Li Xinyi, Zhang Yi, Zhao Yanxia, Du Zixuan, Yang Shenbin   +4 more
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Quadratic mean field games

Physics Reports, 2019
62 pages, 4 ...
Ullmo, Denis, Swiecicki, Igor, Gobron, Thierry   +2 more
openaire   +4 more sources

Linear–Quadratic Mean-Field-Type Games: A Direct Method

Games, 2018
In this work, a multi-person mean-field-type game is formulated and solved that is described by a linear jump-diffusion system of mean-field type and a quadratic cost functional involving the second moments, the square of the expected value of the state,
Tyrone E. Duncan, Hamidou Tembine
doaj   +1 more source

Sharp bounds for the Sándor–Yang means in terms of arithmetic and contra-harmonic means

Journal of Inequalities and Applications, 2018
In the article, we provide several sharp upper and lower bounds for two Sándor–Yang means in terms of combinations of arithmetic and contra-harmonic means.
Hui-Zuo Xu, Yu-Ming Chu, Wei-Mao Qian
doaj   +1 more source

Pengajaran Konsep Ketaksamaan untuk Menguatkan Kemampuan Pemecahan Masalah Aljabar Siswa pada KSN-K Bidang Matematika di SMA Swasta Iskandar Muda Kabupaten Aceh Utara

Jurnal Pengabdian UNDIKMA, 2022
This community service activity aimed to improve students’ ability in solving algebra’s problems in National Science Competition (KSN) in field of mathematics especially in topic of inequalities related to quadratic mean, arithmetic mean, geometrics mean,
Herizal Herizal
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Improvements of bounds for the Sándor–Yang means

Journal of Inequalities and Applications, 2019
In the article, we provide new bounds for two Sándor–Yang means in terms of the arithmetic and contraharmonic means. Our results are the improvements of the previously known results.
Wei-Mao Qian, Hui-Zuo Xu, Yu-Ming Chu
doaj   +1 more source

Mean squares of quadratic twists of the Möbius function

Journal of Number Theory, 2023
8 ...
Peng Gao, Liangyi Zhao
openaire   +2 more sources