74 citations · 128 across the 3 of their papers we have counts for
9 papers · 1 filter
Notes on correlation functions in (0,2) theories
E. Sharpe
In this note we shall review recent work on generalizing rational curve counting to perturbative heterotic theories.
Notes on gauging noneffective group actions
T. Pantev, E. Sharpe
In this paper we study sigma models in which a noneffective group action has been gauged. Such gauged sigma models turn out to be different from gauged sigma models in which an eff…
Lectures on D-branes and Sheaves
E. Sharpe
These notes are a writeup of lectures given at the twelfth Oporto meeting on ``Geometry, Topology, and Physics,'' and at the Adelaide workshop ``Strings and Mathematics 2003,'' pri…
Quotient Stacks and String Orbifolds
Eric Sharpe
In this short review we outline some recent developments in understanding string orbifolds. In particular, we outline the recent observation that string orbifolds do not precisely…
D-Branes and Scheme Theory
Tomas Gomez, Eric R. Sharpe
In this highly speculative note we conjecture that it may be possible to understand features of coincident D-branes, such as the appearance of enhanced non-abelian gauge symmetry,…
Discrete Torsion and Gerbes II
Eric R. Sharpe
In a previous paper we outlined how discrete torsion can be understood geometrically as an analogue of orbifold U(1) Wilson lines. In this paper we shall prove the remaining detail…