Zobrazeno 1 - 10
of 2 684
pro vyhledávání: '"G. H. Kim"'
Publikováno v:
AIP Advances, Vol 10, Iss 12, Pp 125218-125218-12 (2020)
Compared with the traditional sinusoidal voltage source, a short rising nanosecond voltage source can generate a high electron current for a short rising time. This paper investigates how the nanopulse parameters such as the voltage amplitude, pulse
Externí odkaz:
https://doaj.org/article/aba4dc391333499d837d70171d197d07
Autor:
D. H. Lee, M. G. Kim, K. Tsumura, M. Zemcov, U. W. Nam, J. Bock, J. Battle, V. Hristov, T. Renbarger, T. Matsumoto, I. Sullivan, L. R. Levenson, P. Mason, S. Matsuura, G. H. Kim
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 27, Iss 4, Pp 401-406 (2010)
We have measured and analyzed the dark data of two PICNIC IR arrays (P574 and P560) obtained through the Cosmic Infrared Background ExpeRiment (CIBER). First, we identified three types of bad pixels: the cold, the hot, and the transient, which are
Externí odkaz:
https://doaj.org/article/bffa8d284c384f43a5cd4db2cdc9e4bf
Publikováno v:
Discrete Dynamics in Nature and Society, Vol 2012 (2012)
Let 𝑛 be a fixed integer greater than 3 and let 𝜆 be a real number with 𝜆≠(𝑛2−𝑛+4)/2. We investigate the Hyers-Ulam stability of derivations on Banach algebras related to the following generalized Cauchy functional inequality ‖
Externí odkaz:
https://doaj.org/article/8a2cd391abc14615a9aec9ff58476094
Publikováno v:
Abstract and Applied Analysis, Vol 2012 (2012)
By using fixed point methods and direct method, we establish the generalized Hyers-Ulam stability of the following additive-quadratic functional equation f(x+ky)+f(x−ky)=f(x+y)+f(x−y)+(2(k+1)/k)f(ky)−2(k+1)f(y) for fixed integers k with k≠0,
Externí odkaz:
https://doaj.org/article/e78fb2e09a9d4e67a091913bba639514
Publikováno v:
Abstract and Applied Analysis, Vol 2012 (2012)
We establish some stability results in 2-normed spaces for the radical quadratic functional equation 𝑓(∑𝑛𝑖=1(𝑥𝑖+𝑦𝑖)2)+𝑓(∑𝑛𝑖=1(𝑥𝑖−𝑦𝑖)2)=2∑𝑛𝑖=1(𝑓(𝑥𝑖)+𝑓(𝑦𝑖)) and then use su
Externí odkaz:
https://doaj.org/article/53a5f64cc98941cc803faf26372649a4
Autor:
M. Eshaghi Gordji, G. H. Kim
Publikováno v:
Abstract and Applied Analysis, Vol 2012 (2012)
Using fixed point methods, we establish the stability of 𝑛-Lie homomorphisms and Jordan 𝑛-Lie homomorphisms on 𝑛-Lie algebras associated to the following generalized Jensen functional equation ∑𝜇𝑓(𝑛𝑖=1𝑥𝑖∑/𝑛)+𝜇𝑛
Externí odkaz:
https://doaj.org/article/463fcf50d64847369857afde719052fa
Publikováno v:
Abstract and Applied Analysis, Vol 2012 (2012)
Let X and Y be vector spaces. We show that a function f:X→Y with f(0)=0 satisfies Δf(x1,…,xn)=0 for all x1,…,xn∈X, if and only if there exist functions C:X×X×X→Y, B:X×X→Y and A:X→Y such that f(x)=C(x,x,x)+B(x,x)+A(x) for all x∈X,
Externí odkaz:
https://doaj.org/article/1700e5c0f95a4f3da61640c487ab35d1
Publikováno v:
Discrete Dynamics in Nature and Society, Vol 2012 (2012)
We present a fixed point theorem for generalized contraction in partially ordered complete metric spaces. As an application, we give an existence and uniqueness for the solution of a periodic boundary value problem.
Externí odkaz:
https://doaj.org/article/d9215df2ccd445f098aa526164f9b017
Publikováno v:
Journal of Applied Mathematics, Vol 2011 (2011)
Let 𝐴 be an algebra, and let 𝜃, 𝜙 be ring automorphisms of 𝐴. An additive mapping 𝐻∶𝐴→𝐴 is called a (𝜃,𝜙)-derivation if 𝐻(𝑥𝑦)=𝐻(𝑥)𝜃(𝑦)+𝜙(𝑥)𝐻(𝑦) for all 𝑥,𝑦∈𝐴. Moreover, an add
Externí odkaz:
https://doaj.org/article/c896fec08ec34b68a7c503c325cb2fc4
Publikováno v:
Journal of Applied Mathematics, Vol 2011 (2011)
We prove the generalized Hyers-Ulam stability of the 2nd-order linear differential equation of the form 𝑦+𝑝(𝑥)𝑦+𝑞(𝑥)𝑦=𝑓(𝑥), with condition that there exists a nonzero 𝑦1∶𝐼→𝑋 in 𝐶2(𝐼) such that
Externí odkaz:
https://doaj.org/article/95753d631bb64db3b0bc4ad8a4d27d53