57 citations · 98 across the 6 of their papers we have counts for
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BKM superalgebras from counting dyons in N=4 supersymmetric type II compactifications
Suresh Govindarajan, Dileep P. Jatkar, K. Gopala Krishna
We study the degeneracy of quarter BPS dyons in N =4 type II compactifications of string theory. We find that the genus-two Siegel modular forms generating the degeneracies of the…
BKM Lie superalgebra for the Z_5 orbifolded CHL string
K. Gopala Krishna
We study the Z_5-orbifolding of the CHL string theory by explicitly constructing the modular form tilde{Phi}_2 generating the degeneracies of the 1/4-BPS states in the theory. Sinc…
BKM Lie superalgebras from dyon spectra in Z_N-CHL orbifolds for composite N
Suresh Govindarajan, K. Gopala Krishna
We show that the generating function of electrically charged 1/2-BPS states in N=4 supersymmetric Z_N-CHL orbifolds of the heterotic string on T^6 are given by multiplicative eta-p…
Generalized Kac-Moody Algebras from CHL dyons
Suresh Govindarajan, K Gopala Krishna
We provide evidence for the existence of a family of generalized Kac-Moody(GKM) superalgebras, G_N, whose Weyl-Kac-Borcherds denominator formula gives rise to a genus-two modular f…