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D-Branes, Tachyons and K-Homology
Richard J. Szabo
We present an overview of the ways in which D-brane charges are classified in terms of K-theory, emphasizing the natural physical interpretations of a homological classification wi…
BUSSTEPP Lectures on String Theory
Richard J. Szabo
This paper comprises the written version of the lectures on string theory delivered at the 31st British Universities Summer School on Theoretical Elementary Particle Physics which…
The Neveu-Schwarz and Ramond Algebras of Logarithmic Superconformal Field Theory
N. E. Mavromatos, R. J. Szabo
We describe the general features of the Neveu-Schwarz and Ramond sectors of logarithmic conformal field theories with N=1 supersymmetry. Three particular systems are examined in so…
Duality in Scalar Field Theory on Noncommutative Phase Spaces
Edwin Langmann, Richard J. Szabo
We describe a novel duality symmetry of Phi(4)-theory defined on noncommutative Euclidean space and with noncommuting momentum coordinates. This duality acts on the fields by Fouri…