22 citations · 52 across the 8 of their papers we have counts for
8 papers
Nonlinear sigma model in discrete complex analysis
Masaru Kamata, Masayoshi Sekiguchi, Yuuki Tadokoro
We present a discrete version of the two-dimensional nonlinear sigma model examined by Belavin and Polyakov. We formulate it by means of Mercat's discrete complex analysis a…
Circular symmetry in the Hitchin system
Masaru Kamata
To study circularly symmetric field configurations in the SU(2) Hitchin system an SO(2) symmetry, [J_3, ϕ]=0 and [J_3, A_{\pm}]=\pm A_{\pm}, is imposed on the Higgs scalar ϕand the…
Riemann-Liouville integrals of fractional order and extended KP hierarchy
Masaru Kamata, Atsushi Nakamula
An attempt is given to formulate the extensions of the KP hierarchy by introducing fractional order pseudo-differential operators. In the case of the extension with the half-order…
A q-analog of the ADHMN construction and axisymmetric multi-instantons
Masaru Kamata, Atsushi Nakamula
In the preceding paper (Phys. Lett. B463 (1999) 257), the authors presented a q-analog of the ADHMN construction and obtained a family of anti-selfdual configurations with a parame…
One-parameter family of selfdual solutions in classical Yang-Mills theory
Masaru Kamata, Atsushi Nakamula
The ADHM construction, which yields (anti-)selfdual configurations in classical Yang-Mills theories, is applied to an infinite dimensional l^2 vector space, and as a consequence, a…
A q-analogue of Nahm's formalism for self-dual gauge fields
Masaru Kamata, Atsushi Nakamula
We present a q-analogue of Nahm's formalism for the BPS monopole, which gives self-dual gauge fields with a deformation parameter q. The theory of the basic hypergeometric series i…
2+1 dimensional charged black hole with (anti-)self dual Maxwell fields
Masaru Kamata, Takao Koikawa
We discuss the exact electrically charged BTZ black hole solutions to the Einstein-Maxwell equations with a negative cosmological constant in 2+1 spacetime dimensions assuming a (a…
Wave Functional of Quantum Black Holes in Two Dimensions
Takayuki Hori, Masaru Kamata
The wheeler-DeWitt method is applied to the quantization of the 1 + 1 dimensional dilaton gravity coupled with the conformal matter fields. Exact solutions to the WD equations are…