Lee, Sung Jin; Lee, Jung Rye Generalized module left \((m,n)\)-derivations. (English) Zbl 1357.16058 J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 23, No. 4, 385-387 (2016). MSC: 16W25 16D80 PDFBibTeX XMLCite \textit{S. J. Lee} and \textit{J. R. Lee}, J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 23, No. 4, 385--387 (2016; Zbl 1357.16058) Full Text: DOI
Lee, Sung Jin; Seo, Jeong Pil Additive-quadratic \(\rho\)-functional inequalities in fuzzy Banach spaces. (English) Zbl 1390.39092 J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 23, No. 2, 163-179 (2016). Reviewer: Józef Drewniak (Rzeszów) MSC: 39B62 46S40 39B52 39B82 47S40 PDFBibTeX XMLCite \textit{S. J. Lee} and \textit{J. P. Seo}, J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 23, No. 2, 163--179 (2016; Zbl 1390.39092) Full Text: DOI
Lee, Sung Jin; Lee, Jung Rye; Seo, Jeong Pil Additive \(\rho\)-functional inequalities. (English) Zbl 1348.39015 J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 23, No. 2, 155-162 (2016). MSC: 39B62 39B72 39B52 PDFBibTeX XMLCite \textit{S. J. Lee} et al., J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 23, No. 2, 155--162 (2016; Zbl 1348.39015) Full Text: DOI
Park, Choonkil; Shin, Dong Yun; Lee, Sungjin A fixed point approach to the stability of an AQCQ-functional equation in RN-spaces. (English) Zbl 1334.39051 J. Nonlinear Sci. Appl. 9, No. 4, 1787-1806 (2016). MSC: 39B52 39B82 47H10 PDFBibTeX XMLCite \textit{C. Park} et al., J. Nonlinear Sci. Appl. 9, No. 4, 1787--1806 (2016; Zbl 1334.39051) Full Text: DOI Link
Seo, Jeong Pil; Lee, Sungjin; Saadati, Reza Fuzzy stability of an additive-quadratic functional equation with the fixed point alternative. (English) Zbl 1339.39030 J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 22, No. 3, 285-298 (2015). Reviewer: Maryam Amyari (Mashhad) MSC: 39B82 46S40 46C05 39B52 PDFBibTeX XMLCite \textit{J. P. Seo} et al., J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 22, No. 3, 285--298 (2015; Zbl 1339.39030) Full Text: DOI
Jun, In Whan; Seo, Jeong Pil; Lee, Sungjin Additive \(\rho\)-functional equations in Banach spaces. (English) Zbl 1333.39030 J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 22, No. 4, 375-382 (2015). MSC: 39B62 39B52 PDFBibTeX XMLCite \textit{I. W. Jun} et al., J. Korean Soc. Math. Educ., Ser. B, Pure Appl. Math. 22, No. 4, 375--382 (2015; Zbl 1333.39030) Full Text: DOI
Lee, Sung Jin; Park, Choonkil; Shin, Dong Yun An additive functional inequality. (English) Zbl 1474.39066 Korean J. Math. 22, No. 2, 317-323 (2014). MSC: 39B62 39B82 PDFBibTeX XMLCite \textit{S. J. Lee} et al., Korean J. Math. 22, No. 2, 317--323 (2014; Zbl 1474.39066) Full Text: DOI
Vahidi, Javad; Lee, Sung Jin Stability of homomorphisms on fuzzy Lie \(C^*\)-algebras via fixed point method. (English) Zbl 1309.39021 J. Inequal. Appl. 2014, Paper No. 33, 8 p. (2014). MSC: 39B82 46S40 39B52 46L05 PDFBibTeX XMLCite \textit{J. Vahidi} and \textit{S. J. Lee}, J. Inequal. Appl. 2014, Paper No. 33, 8 p. (2014; Zbl 1309.39021) Full Text: DOI
Lee, Jung Rye; Lee, Sung Jin; Park, Choonkil Orthogonally additive and orthogonally quadratic functional equation. (English) Zbl 1524.39043 Korean J. Math. 21, No. 1, 1-21 (2013). MSC: 39B72 39B52 54E40 47H10 46S10 47S10 26E30 PDFBibTeX XMLCite \textit{J. R. Lee} et al., Korean J. Math. 21, No. 1, 1--21 (2013; Zbl 1524.39043) Full Text: DOI
Lee, Jung Rye; Lee, Sung Jin; Park, Choonkil Fixed points and stability of the Cauchy-Jensen functional equation in fuzzy Banach algebras. (English) Zbl 1290.47077 J. Comput. Anal. Appl. 15, No. 4, 692-698 (2013). Reviewer: Reza Saadati (Behshahr) MSC: 47S40 47H10 46S40 39B52 PDFBibTeX XMLCite \textit{J. R. Lee} et al., J. Comput. Anal. Appl. 15, No. 4, 692--698 (2013; Zbl 1290.47077)
Lee, Sung Jin; Saadati, Reza On stability of functional inequalities at random lattice \(\varphi\)-normed spaces. (English) Zbl 1274.39064 J. Comput. Anal. Appl. 15, No. 8, 1403-1412 (2013). Reviewer: Mihály Bessenyei (Debrecen) MSC: 39B82 PDFBibTeX XMLCite \textit{S. J. Lee} and \textit{R. Saadati}, J. Comput. Anal. Appl. 15, No. 8, 1403--1412 (2013; Zbl 1274.39064)
Park, Choonkil; Shin, Dong Yun; Lee, Jung Rye; Lee, Sung Jin Comment on ‘Approximate \(\ast\)-derivations and approximate quadratic \(\ast\)-derivations on \(C^\ast\)-algebras’. (English) Zbl 1279.39022 J. Inequal. Appl. 2012, Paper No. 183, 6 p. (2012). MSC: 39B82 39B52 47B47 PDFBibTeX XMLCite \textit{C. Park} et al., J. Inequal. Appl. 2012, Paper No. 183, 6 p. (2012; Zbl 1279.39022) Full Text: DOI
Lee, Sung Jin; Park, Choonkil; Saadati, Reza Orthogonal stability of an additive-quartic functional equation with the fixed point alternative. (English) Zbl 1276.39019 J. Inequal. Appl. 2012, Paper No. 83, 10 p. (2012). MSC: 39B82 39B52 39B55 46H25 PDFBibTeX XMLCite \textit{S. J. Lee} et al., J. Inequal. Appl. 2012, Paper No. 83, 10 p. (2012; Zbl 1276.39019) Full Text: DOI
Kenary, Hassan Azadi; Park, Choonkil; Lee, Sung Jin On the fuzzy stability of a generalized Jensen quadratic functional equation. (English) Zbl 1270.39021 J. Comput. Anal. Appl. 14, No. 6, 1118-1129 (2012). Reviewer: Stefan Balint (Timişoara) MSC: 39B82 39B52 46S40 PDFBibTeX XMLCite \textit{H. A. Kenary} et al., J. Comput. Anal. Appl. 14, No. 6, 1118--1129 (2012; Zbl 1270.39021)
Lee, Sung Jin Quadratic mappings associated with inner product spaces. (English) Zbl 1524.39038 Korean J. Math. 19, No. 1, 77-85 (2011). MSC: 39B52 46C05 46B03 39B82 PDFBibTeX XMLCite \textit{S. J. Lee}, Korean J. Math. 19, No. 1, 77--85 (2011; Zbl 1524.39038) Full Text: DOI