Clifford Algebra of Two-Forms, Conformal Structures and Field Equations
Ingemar Bengtsson
Abstract
I review the equivalence between duality operators on two-forms and conformal structures in four dimensions, from a Clifford algebra point of view (due to Urbantke and Harnett). I also review an application, which leads to a set of "neighbours" of Einstein's equations. An attempt to formulate reality conditions for the "neighbours" is discussed.
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