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Topics in D-geometry
Michael R. Douglas
We discuss the general theory of D-branes on Calabi-Yaus, recent results from the theory of boundary states, and new results on the spectrum of branes on the quintic CY. (Contribut…
D-branes on the Quintic
Ilka Brunner, Michael R. Douglas, Albion Lawrence +1
We study D-branes on the quintic CY by combining results from several directions: general results on holomorphic curves and vector bundles, stringy geometry and mirror symmetry, an…
D-branes and Discrete Torsion II
Michael R. Douglas, Bartomeu Fiol
We derive D-brane gauge theories for C^3/Z_n x Z_n orbifolds with discrete torsion and study the moduli space of a D-brane at a point. We show that, as suggested in previous work,…
Two Lectures on D-Geometry and Noncommutative Geometry
Michael R. Douglas
This is a write-up of lectures given at the 1998 Spring School at the Abdus Salam ICTP. We give a conceptual introduction to D-geometry, the study of geometry as seen by D-branes i…