Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Iulia Costin"'
Autor:
Iulia Costin, Gheorghe Toader
Publikováno v:
Journal of Numerical Analysis and Approximation Theory, Vol 41, Iss 2 (2012)
Consider the identric mean \(\mathcal{I}\), the logarithmic mean \(\mathcal{L,}\) two trigonometric means defined by H. J. Seiffert and denoted by \(\mathcal{P}\) and \(\mathcal{T,}\) and the hyperbolic mean \(\mathcal{M}\) defined by E. Neuman and J
Externí odkaz:
https://doaj.org/article/0d774415bab84db5ab9b9a3d1fea815b
Autor:
Iulia Costin, Gheorghe Toader
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 2012 (2012)
Seiffert has defined two well-known trigonometric means denoted by 𝒫 and 𝒯. In a similar way it was defined by Carlson the logarithmic mean ℒ as a hyperbolic mean. Neuman and Sándor completed the list of such means by another hyperbolic mean
Externí odkaz:
https://doaj.org/article/d9ac0ed0f243478ca478f2154f04aa28
Autor:
Gheorghe Toader, Iulia Costin
Means in Mathematical Analysis addresses developments in global analysis, non-linear analysis, and the many problems of associated fields, including dynamical systems, ergodic theory, combinatorics, differential equations, approximation theory, analy
Autor:
Gheorghe Toader, Iulia Costin
We begin by presenting some classical examples of double sequences. They are related to the method of Archimedes for evaluating π, Heron's method of extracting square roots, Lagrange's procedure of determining the integral of some irrational functio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::317a655149401f4815c003bf2226eee4
https://doi.org/10.1016/b978-0-12-811080-5.00001-3
https://doi.org/10.1016/b978-0-12-811080-5.00001-3
Autor:
Iulia Costin, Gheorghe Toader
Publikováno v:
Applied Mathematics and Computation. 219:4745-4754
Let us consider the second trigonometric mean T defined by Seiffert and the hyperbolic mean M defined by Neuman and Sandor. There are some known inequalities between these means and some power means A"p. We prove that the evaluationsA"l"n"2"/"l"n"("l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6c95dd9a9b6a303a12a649e0770da68
https://doi.org/10.1016/j.amc.2012.10.091
https://doi.org/10.1016/j.amc.2012.10.091
Autor:
Silvia Toader, Iulia Costin
Publikováno v:
Mathematical Inequalities & Applications. :791-798
We want to determine the complementary of a weighted Gini mean with respect to the logarithmic mean which is again a weighted Gini mean. Mathematics subject classification (2000): 26E60.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14d1c160362eb2b015bf1707ef83b48d
https://doi.org/10.7153/mia-12-62
https://doi.org/10.7153/mia-12-62
Autor:
Gheorghe Toader, Iulia Costin
Publikováno v:
Computer Algebra in Scientific Computing ISBN: 9783319105147
CASC
CASC
Let us consider the logarithmic mean \(\mathcal{L,}\) the identric mean \(\mathcal{I,}\) the trigonometric means \(\mathcal{P}\) and \(\mathcal{T}\) defined by H. J. Seiffert, the hyperbolic mean \(\mathcal{N}\) defined by E. Neuman and J. Sandor, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98f48a6121759ec3adc7d8a8bad94664
https://doi.org/10.1007/978-3-319-10515-4_7
https://doi.org/10.1007/978-3-319-10515-4_7