Dergiler / Hacettepe Journal of Mathematics and Statistics / 2021 / Cilt: 50 - Sayı: 1

New Wilker-type and Huygens-type inequalities

Sayfa
46–62
Yayın Tarihi
2022-10-18
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Finally, we obtain some more general conclusions than the first work of this paper, which reveal the absolute monotonicity of four functions involving the four inequalities mentioned above.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:In this paper, we first determine the relationships between the first Wilker's inequality, the second Wilker's inequality, the first Huygens inequality, and the second Huygens inequality for circular functions and for hyperbolic functions, respectively.
📊
Temel Bulgular & Veri:Then, we establish new Wilker-type inequalities and Huygens-type inequalities for two function pairs, $x/\sin^{-1}x$ and $x/\tan ^{-1}x$, $x/\sinh ^{-1}x$ and $x/\tanh ^{-1}x$.
💡
Sonuç & Katkı:Finally, we obtain some more general conclusions than the first work of this paper, which reveal the absolute monotonicity of four functions involving the four inequalities mentioned above.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Wilker-type inequalities · Huygens-type inequalities · circular functions

Abstract

In this paper, we first determine the relationships between the first Wilker's inequality, the second Wilker's inequality, the first Huygens inequality, and the second Huygens inequality for circular functions and for hyperbolic functions, respectively. Then, we establish new Wilker-type inequalities and Huygens-type inequalities for two function pairs, $x/\sin^{-1}x$ and $x/\tan ^{-1}x$, $x/\sinh ^{-1}x$ and $x/\tanh ^{-1}x$. Finally, we obtain some more general conclusions than the first work of this paper, which reveal the absolute monotonicity of four functions involving the four inequalities mentioned above.

🔖

Bu Makaleye Atıf Yap

Zhu, L., Malešević, B. (2022). New Wilker-type and Huygens-type inequalities. Hacettepe Journal of Mathematics and Statistics, Cilt: 50 - Sayı: 1, 46–62. https://ajindex.com/articles/529505

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (18)

  1. M. Abramowitz and I. A. Stegun (Eds), Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, National Bureau of Standards, Applied Mathematics Series 55, Dover Publications, 1972
  2. B. Banjac, M. Makragić, and B. Malešević, Some notes on a method for proving inequalities by computer, Results Math. 69, 161–176, 2016
  3. A. Baricz and J. Sandor, Extensions of the generalized Wilker inequality to Bessel functions, J. Math. Inequal. 2 (3), 397–406, 2008
  4. F. Cajori, A History of Mathematics, 2nd ed., New York, 1929
  5. F.T. Campan, The Story of Number π, Ed. Albatros, Romania, 1977
  6. C.-P. Chen and W.-S. Cheung, Wilker- and Huygens-type inequalities and solution to Oppenheim’s problem, Int. Trans. Spec. Funct. 23 (5), 325–336, 2012
  7. B.-N. Guo, B.-M. Qiao, F. Qi, and W. Li, On new proofs of Wilker inequalities involving trigonometric functions, Math. Inequal. Appl. 6 (1), 19–22, 2003
  8. C. Huygens, Oeuvres Completes, Publiees Par la Societe Hollandaise des Science, Haga, 20 volumes, 1888–1940
  9. A.P. Iuskevici, History of Mathematics in 16th and 17th Centuries, Moskva, 1961
  10. A. Jeffrey, Handbook of Mathematical Formulas and Integrals, 3rd ed., Elsevier Acad. Press, San Diego, CA, 2004
  11. J.-C. Kuang, Applied Inequalities, 3rd ed. (in Chinese), Shangdong Science and Technology Press, Jinan City, Shangdong Province, China, 2004
  12. J.-L. Li, An identity related to Jordan’s inequality, Int. J. Math. Math. Sci. 6, Article ID 76782, 2016
  13. T. Lutovac, B. Malešević, and C. Mortici, The natural algorithmic approach of mixed trigonometric-polynomial problems, J. Inequal. Appl. 2017, Article No: 116, 2017
  14. T. Lutovac, B. Malešević, and M. Rašajski, A new method for proving some inequalities related to several special functions, Results Math. 73, Article No: 100, 2018
  15. B.J. Malešević, Application of λ-method on Shafer–Fink’s inequality, Univ. Beograd. Publ. Elektrotehn. Fak. Ser. Mat. 8, 103–105, 1997
  16. B.J. Malešević, An application of λ-method on inequalities of Shafer–Fink’s type, Math. Inequal. Appl. 10, 529–534, 2007
  17. B. Malešević, T. Lutovac, M. Rašajski, and C. Mortici, Extensions of the natural approach to refinements and generalizations of some trigonometric inequalities, Adv. Difference Equ. 2018, Article No: 90, 2018
  18. B. Malešević, M. Nenezić, L. Zhu, B. Banjac and M. Petrovic, Some new estimates of precision of Cusa-Huygens and Huygens approximations, accepted in Appl. Ana