A Study on Solving Circumference of Plane Figure

Eunhwan Roh , Sangtae Jeong
Education of Primary School Mathematics 19 ( 4) 291 -311

2016
On fuzzy implicative ideals of BCK-algebras

SM Mostafa ,
Soo chow journal of mathematics 25 ( 1) 57 -70

8
1999
The Construction of an Abstract Schema in the Similar Mathematical Problem Solving Process

Jeonggi Kang , Youngbae Jun , Eunhwan Roh
Journal of the Korean School Mathematics Society 16 ( 1) 219 -240

2013
ANNIHILATORS IN BCI-ALGEBRAS

E H Roh , Y B Jun , J Meng
Mathematica japonicae 43 ( 3) 559 -562

3
1996
FUZZY DUAL IDEALS IN BCK-ALGEBRAS (III)

S M Hong , S Z Song , Y B Jun , E H Roh
Mathematica japonicae 43 ( 2) 383 -388

1996
BCI-ALGEBRAS OF ORDER 6

E H Roh , Y B Jun , J Meng
Mathematica japonicae 47 ( 1) 33 -43

10
1998
ON QUOTIENT RESIDUATED LATTICES VIA FUZZY LIA-FILTERS

EH Roh , Y Xu , Z Song , K Qin
Scientiae Mathematicae japonicae 55 ( 1) 107 -113

2002
ON A PROBLEM IN BCI-ALGEBRAS

J W Nam , Y B Jun , E H Roh
Mathematica japonicae 43 ( 3) 555 -557

1996
SOME IDEALS IN BCI-ALGEBRAS

S M Wei , E H Roh , Y B Jun
Mathematica japonicae 43 ( 1) 47 -50

1
1996
ON A PROPLEM IN BCH-ALGEBRAS

Y B Jun , E H Roh , S Y Kim
MATHEMATICA JAPONICA 52 ( 2) 279 -283

1
2000
A NOTE ON GT-ALGEBRAS

Jae-Doek Kim , Young-Mi Kim , Eun-Hwan Roh
Pure and Applied Mathematics 16 ( 1) 59 -68

3
2009
On Prime Dual Ideals in BCK-algebras II

Eun-Hwan Roh , Young-Bae Jun , Wenping Huang
Kyungpook Mathematical Journal 38 ( 2) 387 -387

1998
C(S) extensions of S-I-BCK-algebras

Zhaomu Chen , Yisheng Huang , Eun-Hwan Roh
Communications of The Korean Mathematical Society 10 ( 3) 499 -518

1995
ON A PROBLEM OF G-PART OF BCI-ALGEBRAS

Jie Meng , Eun-Hwan Roh , Young-Bae Jun
East Asian mathematical journal 10 ( 1) 9 -19

1994
On uniformities of BCK-algebras

Eun-Hwan Roh , Young-Bae Jun
Communications of The Korean Mathematical Society 10 ( 1) 11 -14

4
1995
LI-ideals in lattice implication algebras

Eun-Hwan Roh , Young-Bae Jun , Yang Xu
Bulletin of The Korean Mathematical Society 35 ( 1) 13 -24

32
1998
NIL SUBSETS IN BCH-ALGEBRAS

Eun-Hwan Roh , Young-Bae Jun
East Asian mathematical journal 22 ( 2) 207 -213

2
2006
On the analysis and correction of error for the simultaneous inequality with two unknown quantities

Young-Bae Jun , Eun-Hwan Roh , Jeong-Gi Kang , Dae-Eui Kim
Communications of Mathematical Education 24 ( 3) 543 -562

2010
The Roles of Structural Similarity, Analytic Activity and Comparative Activity in Stage of Similar Mathematical Problem Solving Process

Young-Bae Jun , Eun-Hwan Roh , Jeong-Gi Kang
Communications of Mathematical Education 25 ( 1) 21 -45

2011
Case Study : An analysis on Problem Solving Processes of Gifted Math Students

Chan-Sik Jung , Eun-Hwan Roh
The Mathematical Education 48 ( 4) 455 -467

2009