A bstract We study the rigid limit of a class of hypermultiplet moduli spaces appearing in
Calabi-Yau compactifications of type IIB string theory, which is induced by a local limit of the …

A bstract We use the twistorial construction of D-instantons in Calabi-Yau compactifications
of type II string theory to compute an explicit expression for the metric on the hypermultiplet …

A bstract The metric on the hypermultiplet moduli space of Calabi-Yau compactifications of
type II string theory is known to receive D-brane and NS5-brane instanton corrections. We …

We present some results on instanton corrections to the hypermultiplet moduli space in
Calabi–Yau compactifications of type-II string theories. Previously, using twistor methods …

We investigate quantum corrections to the hypermultiplet moduli space\(\mathcal {M}\) in
Calabi-Yau compactifications of type II string theories, with particular emphasis on instanton …

A bstract In type IIB string compactifications on a Calabi-Yau threefold, the hypermultiplet
moduli space\({\mathcal {M} _H}\) must carry an isometric action of the modular group SL …

Finding the exact, quantum corrected metric on the hypermultiplet moduli space in Type II
string compactifications on Calabi-Yau threefolds is an outstanding open problem. We …

A bstract We study limits of infinite distance in the moduli space of 4d\(\mathcal {N}\)= 2
string compactifications, in which instanton effects dominate. We first consider trajectories in …

A bstract We consider geodesics of infinite length and with constant 4d dilaton in the
(classical) hypermultiplet moduli space of type II Calabi-Yau compactifications. When …

Recently, an exact description of instanton corrections to the moduli spaces of 4d N= 2
supersymmetric gauge theories compactified on a circle and Calabi-Yau compactifications …