ar X iv : h ep - t h / 98 03 04 9 v 1 5 M ar 1 99 8 BRX TH - 430 Born – Infeld – Einstein Actions ?
نویسندگان
چکیده
We present some obvious physical requirements on gravitational avatars of non-linear elec-trodynamics and illustrate them with explicit determinantal Born–Infeld–Einstein models. A related procedure, using compensating Weyl scalars, permits us to formulate conformally invariant versions of these systems as well. Born–Infeld (BI) electrodynamics [1] has earned its longevity through its elegant, compact, determinantal form,
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