4 papers
On Semi-Periods
A. C. Avram, E. Derrick, D. Jancic
The periods of the three-form on a Calabi-Yau manifold are found as solutions of the Picard-Fuchs equations; however, the toric varietal method leads to a generalized hypergeometri…
On the Instanton Contributions to the Masses and Couplings of Singlets
P. Berglund, P. Candelas, X. de la Ossa +3
We consider the gauge neutral matter in the low--energy effective action for string theory compactification on a \cym\ with world--sheet supersymmetry. At the classical lev…
On Periods for String Compactifications
P. Berglund, E. Derrick, T. Hübsch +1
Motivated by recent developments in the computation of periods for string compactifications with , we develop a complementary method which also produces a convenient basis for…
Generalized Calabi-Yau Manifolds and the Mirror of a Rigid Manifold
P. Candelas, E. Derrick, L. Parkes
We describe the mirror of the Z orbifold as a representation of a class of generalized Calabi-Yau manifolds that can be realized as manifolds of dimension five and seven. Despite t…