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Stability Problem for Jensen-type Functional Equations of Cubic Mappings
引用本文:Kil-Woung JUN Hark-Mahn KIM. Stability Problem for Jensen-type Functional Equations of Cubic Mappings[J]. 数学学报(英文版), 2006, 22(6): 1781-1788. DOI: 10.1007/s10114-005-0736-9
作者姓名:Kil-Woung JUN Hark-Mahn KIM
作者单位:Department of Mathematics, Chungnam National University, 220 Yuseong-Gu, Daejeon, 305-764, Republic of Korea
基金项目:This work is supported by the Korea Research Foundation Grant funded by the Korea Government (M0EHRD) (KRF-2005-070-C00009)
摘    要:In this paper, we establish the general solution and the generalized Hyers-Ulam-Rassias stability problem for a cubic Jensen-type functional equation,4f((3x+y)/4)+4f((x+3y)/4)=6f((x+y)/2)+f(x)+f(y),9f((2x+y/3)+9f((x+2y)/3)=16f((x+y)/2+f(x)+f(y)in the spirit of D. H. Hyers, S. M. Ulam, Th. M. Rassias and P. Gaevruta.

关 键 词:Jensen方程 Hyers-Ulam-Rassias稳定性 立方映射 数学分析
收稿时间:2005-03-04
修稿时间:2005-03-042005-07-27

Stability Problem for Jensen–type Functional Equations of Cubic Mappings
Kil-Woung Jun,Hark-Mahn Kim. Stability Problem for Jensen–type Functional Equations of Cubic Mappings[J]. Acta Mathematica Sinica(English Series), 2006, 22(6): 1781-1788. DOI: 10.1007/s10114-005-0736-9
Authors:Kil-Woung Jun  Hark-Mahn Kim
Affiliation:(1) Department of Mathematics, Chungnam National University, 220 Yuseong-Gu, Daejeon, 305–764, Republic of Korea
Abstract:In this paper, we establish the general solution and the generalized Hyers–Ulam–Rassias stability problem for a cubic Jensen–type functional equation,
$$
begin{aligned}
  & 4f{left( {frac{{3x + y}}
{4}} right)} + 4f{left( {frac{{x + 3y}}
{4}} right)} = 6f{left( {frac{{x + y}}
{2}} right)} + f{left( x right)} + f{left( y right)}, 
 & 9f{left( {frac{{2x + y}}
{3}} right)} + 9f{left( {frac{{x + 2y}}
{3}} right)} = 16f{left( {frac{{x + y}}
{2}} right)} + f{left( x right)} + f{left( y right)}  
 end{aligned} 
$$
in the spirit of D. H. Hyers, S. M. Ulam, Th. M. Rassias and P. Găvruta. This work is supported by the Korea Research Foundation Grant funded by the Korea Government (MOEHRD) (KRF–2005–070–C00009)
Keywords:Jensen equation   Hyers-Ulam-Rassias stability   cubic mapping
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