Toshiharu Kawai

A\(\overline {Poincar\acute{e}} \) gauge theory of gravity

AbstractWe develop a gauge theory of gravity on the basis of the principal fiber bundle over the four-dimensional space-timeM with the covering groupP¯0 of the proper orthochronous Poincaré group. The field components

Schwinger's variational principle in the theory of quantized quasi-linear fields: The case of Hermitian scalar fields

e^k _\mu

Schwarzschild Space-Time in Gauge Theories of Gravity

are constructed with the connection coefficients

Special Relativistic Limits of P̅o̅i̅n̅c̅a̅r̅e̅́̅ Gauge Theory of Gravity

A^k _\mu

Special Relativistic Limit of Gauge Theory of Gravitation

,