2 papers
hep-th2004
D-instanton sums for matter hypermultiplets
Sergei V. Ketov, Osvaldo P. Santillan, Andrei G. Zorin
We calculate some non-perturbative (D-instanton) quantum corrections to the moduli space metric of several (n>1) identical matter hypermultiplets for the type-IIA superstrings comp…
hep-th2004
Toric hyperkahler manifolds with quaternionic Kahler bases and supergravity solutions
O. P. Santillan, A. G. Zorin
In the present work some examples of toric hyperkahler metrics in eight dimensions are constructed. First it is described how the Calderbank-Pedersen metrics arise as a consequence…