Richard Arnowitt is a prominent theoretical physicist known for his contributions to general relativity and theoretical cosmology. He is particularly noted for his work on the Arnowitt-Deser-Misner (ADM) formalism, which provides a way to formulate general relativity in a more manageable framework by separating space and time. This formalism plays a crucial role in the study of gravitational waves and the initial value problems in general relativity.
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