Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Young Whan Lee"'
Publikováno v:
Discrete Dynamics in Nature and Society, Vol 2012 (2012)
Let n>1 be an integer, let A be an algebra, and X be an A-module. A quadratic function D:A→X is called a quadratic n-derivation if D(∏i=1nai)=D(a1)a22⋯an2+a12D(a2)a32⋯an2+⋯+a12a22⋯an−12D(an) for all a1,...,an∈A. We investigate the Hye
Externí odkaz:
https://doaj.org/article/c0511d32504748b5a5d7e31df9be6f83
Autor:
Young Whan Lee
Publikováno v:
Journal of Inequalities and Applications, Vol 2010 (2010)
We obtain the superstability of the Pexiderized multiplicative functional equation f(xy)=g(x)h(y) and investigate the stability of this equation in the following form: 1/(1+ψ(x,y))≤f(xy)/g(x)h(y)≤1+ψ(x,y).
Externí odkaz:
https://doaj.org/article/e906376a116d4cd5b82927fcc6e1f187
Autor:
Gwang Hui Kim, Young Whan Lee
Publikováno v:
Mathematics and Statistics. 7:25-32
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35f8269de8b9b46b3cda498cd17b2701
https://doi.org/10.13189/ms.2019.070104
https://doi.org/10.13189/ms.2019.070104
Autor:
Ee-Gyeong Kim, Young-Whan Lee
Publikováno v:
Korean Comparative Education Society. 28:83-106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95a0fba453e208db65f9131c6b370cc4
https://doi.org/10.20306/kces.2018.28.4.83
https://doi.org/10.20306/kces.2018.28.4.83
Autor:
young-whan Lee
Publikováno v:
The Korean Journal of Literacy Research. 20:209-228
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f67dbb3c7e0cb6cb7c8e0fb97d1eaa0
https://doi.org/10.37736/kjlr.2017.06.20.209
https://doi.org/10.37736/kjlr.2017.06.20.209
Autor:
Young Whan Lee, Gwang Hui Kim
Publikováno v:
Journal of Nonlinear Sciences and Applications. :413-423
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9f538553394a2e60632a80e06e337df
https://doi.org/10.22436/jnsa.009.02.07
https://doi.org/10.22436/jnsa.009.02.07
Autor:
Young Whan Lee1, Gwang Hui Kim2 ghkim@kangnam.ac.kr
Publikováno v:
Journal of Inequalities & Applications. Oct2014, Vol. 2014, p1-11. 11p.
Autor:
Young Whan Lee
Publikováno v:
Mathematical Inequalities & Applications. :1185-1195
We prove the stability of the Pexiderized Cauchy's additive functional equation with a general form; f(x+y )= g(x)+h(y)+λ(x,y) where λ(x,y) is a logarithm of a pseudo exponential function. From this result, we obtain the stability with the followin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8ba7f6dbc17957b722e5a02a1cfcee8
https://doi.org/10.7153/mia-16-92
https://doi.org/10.7153/mia-16-92
Autor:
Young Whan Lee
Publikováno v:
Journal of the Chungcheong Mathematical Society. 25:463-474
In this paper we show that every near higher derivation on a Banach algebra is an almost higher derivation. Also we obtain conditions that every almost higher derivation is a near higher derivation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a13147837195fa751c5b3830dc2b6502
https://doi.org/10.14403/jcms.2012.25.3.463
https://doi.org/10.14403/jcms.2012.25.3.463
Autor:
Young-Whan Lee
Publikováno v:
The Pure and Applied Mathematics. 19:193-198
We show that every unbounded approximate Pexiderized exponential type function has the exponential type. That is, we obtain the superstability of the Pexiderized exponential type functional equation $$f(x+y)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b30334b94465c6097c016c1c2f5dccfb
https://doi.org/10.7468/jksmeb.2012.19.2.193
https://doi.org/10.7468/jksmeb.2012.19.2.193