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김제열,조상호,김건일,허경림,김현숙,조구영,최영진,이원용,임종윤 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.2
Cardiac tumors, especially the primary tumors involving any part of the heart are extremely rare and its relative incidence has been reported to be approximately 0.02%. We report a patient with huge cardiac hemangioma who complained of shortness of breath, general weakness, and dizziness, Imaging study by echocardiography and computed tomography of thorax revealed a huge lobulating mass like a bunch of grapes in the right chamber of heart. The surgical exploration of thorax was performed and a histological diagnosis of spindle cell hemangioma was obtained by microscopy. The patient was treated by surgical resection of the tumor and doing well after surgery. Our experience indicated that prompt diagnosis and treatment of cardiac hemangioma is imperative for patients' prognosis.
Cho, Yeol Je,Chang, Shih-sen,Jung, Jong Soo,Kang, Shin Min 東亞大學校附設基礎科學硏究所 1997 基礎科學硏究論文集 Vol.14 No.1
In this paper, we establish a coincidence theorem for set-valued mappings in fuzzy metric spaces with a view to generalizing Downing-Kirk's fixed point theorem in metric spaces. As consequences, we obtain Caristi's coincidence theorem for set-valued mappings and a more general type of Ekeland's variational principle in fuzzy metric spaces. Further, we also give a direct simple proof of the equivalence between these two theorems in fuzzy metric spaces. Some applications of these results to probabilistic metric spaces are presented.
ON SOME INTEGRAL INEQUALITIES WITH ITERATED INTEGRALS
Cho, Yeol-Je,Dragomir Sever-S.,Kim, Young-Ho Korean Mathematical Society 2006 대한수학회지 Vol.43 No.3
The main aim of the present paper is to establish some new Gronwall type inequalities involving iterated integrals and give some applications of the main results.
Cho, Yeol-Je,Kang, Shin-Min,Qin, Xiaolong Korean Mathematical Society 2010 대한수학회보 Vol.47 No.6
In this paper, we consider an implicit iterative process with errors for an in nite family of strict pseudocontractions. Strong convergence theorems are established in the framework of Banach spaces. The results presented in this paper improve and extend the recent ones announced by many others.
ITERATIVE APPROXIMATIONS OF ZEROES FOR ACCRETIVE OPERATORS IN BANACH SPACES
Cho Yeol-Je,Zhou Haiyun,Kim Jong-Kyu Korean Mathematical Society 2006 대한수학회논문집 Vol.21 No.2
In this paper, we introduce and study a new iterative algorithm for approximating zeroes of accretive operators in Banach spaces.
Cho, Yeol-Je,Hussain, Nawab,Pathak, Hemant Kumar Korean Mathematical Society 2011 대한수학회논문집 Vol.26 No.3
In this paper, we introduce a new class of uniformly point-wise R-subweakly commuting self-mappings and prove several common fixed point theorems and best approximation results for uniformly point-wise R-subweakly commuting asymptotically I-nonexpansive mappings in normed linear spaces. We also establish some results concerning strong convergence of nearest common fixed points of asymptotically I-non-expansive mappings in reflexive Banach spaces with a uniformly G$\^{a}$teaux differentiable norm. Our results unify and generalize various known results given by some authors to a more general class of noncommuting mappings.
Nonlinear Random Stability via Fixed-Point Method
Cho, Yeol Je,Kang, Shin Min,Saadati, Reza Hindawi Limited 2012 Journal of applied mathematics (JAM) Vol.2012 No.-
<P>We prove the generalized Hyers-Ulam stability of the following additive-quadratic-cubic-quartic functional equationf(x+2y)+f(x−2y)=4f(x+y)+4f(x−y)−6f(x)+f(2y)+f(−2y)−4f(y)−4f(−y)in various complete random normed spaces.</P>
On Strongly Nonlinear Implicit Complementarity Problems in Hilbert Spaces
Cho, Yeol Je,Huang, Nan-Jing Department of Mathematics 2006 Kyungpook mathematical journal Vol.46 No.1
In this paper, we study a class of strongly nonlinear implicit complementarity problems in the setting of Hilbert spaces H (not necessarily Hilbert lattices). By using the property of the projection and a suitable change of variables, we establish the equivalence between the strongly nonlinear implicit complementarity problem and the fixed point problem in H. Moreover, we use this equivalence and the fixed point theorem of Boyd and Wong to prove the existence and uniqueness of solutions for the strongly nonlinear implicit complementarity problem in H.