Formal aspects of quantum field theory and string theory, such as connections between supersymmetric field theories and integrable systems.
J. Yagi, Surface defects and elliptic quantum groups, JHEP 06 (2017) 013.
J. Yagi, Quiver gauge theories and integrable lattice models, JHEP 10 (2015) 065.
J. Yagi, 3d TQFT from 6d SCFT, JHEP 08 (2013) 017.
J. Yagi, Compactification on the Ω-background and the AGT correspondence, JHEP 09 (2012) 101.
J. Yagi, On the six-dimensional origin of the AGT correspondence, JHEP 02 (2012) 020.
J. Yagi, Chiral algebras of (0, 2) models, Adv. Theor. Math. Phys. 16 (2012) 1–37.