• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2000.10a
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• pp.19-19
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• 2000

• Proceedings of the Korean Fiber Society Conference
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• 2007.11a
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• pp.343-344
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• 2007

• Journal of Periodontal and Implant Science
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• v.16 no.1
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• pp.95.2-95.2
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• 1986

• Journal of Periodontal and Implant Science
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• v.19 no.2
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• pp.135.2-135.2
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• 1989

• Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
• /
• 2006.09a
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• pp.81-84
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• 2006

• Proceedings of the KSME Conference
• /
• 2005.11a
• /
• pp.12.2-12.2
• /
• 2005

• Communications of the Korean Mathematical Society
• /
• v.11 no.4
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• pp.937-958
• /
• 1996

On the setting of product of balls we consider Toeplitz operators, with symbols satisfying a certain condition, on the Bergman space. Norms and essential norms of such operators are estimated by means of certain integral quantities.

• Proceedings of the KSME Conference
• /
• 2005.11a
• /
• pp.6.2-6.2
• /
• 2005

• Proceedings of the KSME Conference
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• 2005.11a
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• pp.30.2-30.2
• /
• 2005

• International Journal of Industrial Entomology and Biomaterials
• /
• v.41 no.1
• /
• pp.6-10
• /
• 2020

Three species of the family Biphyllidae - Biphyllus japonicus Sasaji, 1983, Biphyllus loochooanus Sasaji, 1991 and Biphyllus oshimanus Nakane, 1988 - are reported for the first time in Korea. Descriptions, photographs of the adults and line drawings of the diagnostic characters are provided for all the species recognized in this study.