• 대한수학회보
• /
• 제35권3호
• /
• pp.559-562
• /
• 1998

We prove the $C^r$ Closing Lemma for chain recurrence in compact surfaces.

• 대한수학회지
• /
• 제32권1호
• /
• pp.109-114
• /
• 1995

Before state precisely our main theorem, we want to make some brief historical comment.

• 충청수학회지
• /
• 제9권1호
• /
• pp.199-207
• /
• 1996