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- Alessandro Dâ€™Adda, Issaku Kanamori, Noboru Kawamoto, Kazuhiro Nagata
- 2008

We propose a lattice action for two dimensional super Yang-Mills theory with a twisted N = 2 supersymmetry. The extended supersymmetry is fully and exactly realized on the lattice. The methodâ€¦ (More)

- Alessandro Dâ€™Adda, Issaku Kanamori, Noboru Kawamoto, Kazuhiro Nagata
- 2008

We propose a new formulation which realizes exact twisted supersymmetry for all the supercharges on a lattice by twisted superspace formalism. We show explicit examples of N = 2 twisted supersymmetryâ€¦ (More)

- Alessandro Dâ€™Adda, Issaku Kanamori, Noboru Kawamoto, Kazuhiro Nagata
- 2007

We propose a lattice formulation of three dimensional super Yang-Mills model with a twisted N = 4 supersymmetry. The extended supersymmetry algebra of all the eight supercharges is fully and exactlyâ€¦ (More)

- Noboru Kawamoto
- 1993

Recent numerical results on the fractal structure of two-dimensional quantum gravity coupled to c = âˆ’2 matter are reviewed. Analytic derivation of the fractal dimensions based on the Liouville theoryâ€¦ (More)

We propose a lattice version of Chern-Simons gravity and show that the partition function coincides with Ponzano-Regge model and the action leads to the Chern-Simons gravity in the continuum limit.â€¦ (More)

We propose a twisted D=N=2 superspace formalism. The relation between the twisted super charges including the BRST charge, vector and pseudo scalar super charges and the N=2 spinor super charges isâ€¦ (More)

We propose N = 4 twisted superspace formalism in four dimensions by introducing Dirac-KÃ¤hler twist. In addition to the BRST charge as a scalar counter part of twisted supercharge we find vector andâ€¦ (More)

- Noboru Kawamoto, Takuya Tsukioka
- 2000

We investigate the generalized gauge theory which has been proposed previously and show that in two dimensions the instanton gauge fixing of the generalized topological Yang-Mills action leads to aâ€¦ (More)

We formulate Dirac-KÃ¤hler fermion action by introducing a new Clifford product with noncommutative differential form on a lattice. Hermiticity of the Dirac-KÃ¤hler action requires to choose theâ€¦ (More)

- Alessandro Dâ€™Adda, Noboru Kawamoto, Jun Saito
- 2009

The lattice superalgebra of the link approach is shown to satisfy a Hopf algebraic supersymmetry where the difference operator is introduced as a momentum operator. The breakdown of the Leibniz ruleâ€¦ (More)