• Proceedings of the Korean Society of Radiological Science
• /
• 1994.05a
• /
• pp.32-32
• /
• 1994

• Proceedings of the Korean Society of Radiological Science
• /
• 1994.05a
• /
• pp.33.1-33.1
• /
• 1994

• Proceedings of the Korean Society for Environmental Edudation Conference
• /
• 2006.07a
• /
• pp.179-184
• /
• 2006

• The Bulletin of The Korean Astronomical Society
• /
• v.30 no.2
• /
• pp.67.1-67.1
• /
• 2005

• Proceedings of the Korean Environmental Sciences Society Conference
• /
• 2016.10a
• /
• pp.211-211
• /
• 2016

• Proceedings of the Korean Environmental Sciences Society Conference
• /
• 2016.10a
• /
• pp.212-212
• /
• 2016

• Honam Mathematical Journal
• /
• v.26 no.4
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• pp.589-608
• /
• 2004

We investigate the multiplicity of the periodic solutions of the nonlinear wave equation with jumping nonlinearity. By category theory we prove that the jumping problem has at least 2k+1 solutions for the positive source term.

• Proceedings of the Optical Society of Korea Conference
• /
• 2009.10a
• /
• pp.292-293
• /
• 2009

• Proceedings of the Optical Society of Korea Conference
• /
• 2007.02a
• /
• pp.145-146
• /
• 2007

• Proceedings of the Korean Society of Plant Biotechnology Conference
• /
• 2005.11a
• /
• pp.380-380
• /
• 2005