@phdthesis{oai:tsukuba.repo.nii.ac.jp:00008610, author = {最上, 武志 and Mogami, Takeshi}, month = {}, note = {application/pdf, We study the Green-Schwarz action of the Heterotic and the Type IIB string in a plane-wave background obtained by the Penrose limit. We show that the action is quadratic with respect to the fermionic coordinates μ in such a background, in the light-cone gauge. Because of this property, superstring theory may be relatively easy to be quantized in such a background. We use the normal coordinate expansion in superspace to show this property of the action. Especially we present the μ- expansion of the Heterotic string action in general background explicitly in some approximation and show that a claim previously made about it in the literature is not correct., 2003, Includes bibliographical references}, school = {筑波大学, University of Tsukuba}, title = {Green-Schwarz 作用のθ- 展開と Penrose 極限}, year = {2004} }