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Variational methods and effective actions in string models

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>07/1987
<mark>Journal</mark>Classical and Quantum Gravity
Issue number4
Number of pages7
Pages (from-to)791-797
Publication StatusPublished
<mark>Original language</mark>English


Effective actions motivated by zero-order and first-order actions are examined. Particular attention is devoted to a variational procedure that is consistent with the structure equations involving the Lorentz connection. Attention is drawn to subtleties that can arise in varying higher-order actions and an efficient procedure developed to handle these cases using the calculus of forms. The effect of constrained variations on the field equations is discussed.