Heterotic instantons and solitons in anomaly-free supergravity
classification
✦ hep-th
keywords
anomaly-freeequationsheteroticsupergravityalphabetaclassicaldiscuss
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We extend the classical heterotic instanton solutions to all orders in $\alpha'$ using the equations of anomaly-free supergravity, and discuss the relation between these equations and the string theory $\beta$-functions.
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