@article{oai:soar-ir.repo.nii.ac.jp:00011706, author = {Kawamura, Y}, issue = {3}, journal = {PROGRESS OF THEORETICAL PHYSICS}, month = {Mar}, note = {We study a mechanism of symmetry transition upon compactification of a 5-dimensional held theory on S-1/Z(2). The transition occurs unless all components in a multiplet of a symmetry group have a common Zz parity on S-1/Z(2). This mechanism is applied to a reduction of SU(5) gauge symmetry in grand unified theory, and phenomenological implications are discussed., Article, PROGRESS OF THEORETICAL PHYSICS. 103(3):613-619 (2000)}, pages = {613--619}, title = {Gauge symmetry reduction from the extra space S-1/Z(2)}, volume = {103}, year = {2000} }