Arthur Komar

Arthur's interests in physics ranged over numerous fundamental and applied concepts, including conserved quantities, space and time, and thermodynamics, notably he pursued the problem of observables in general relativity and in quantum theory. As a graduate student, he worked on the problem of invariants in general relativistic spacetimes.

In 1956, he gained his Ph.D. in physics at Princeton University with a thesis on the classical electron – a topic suggested by Fritz Rohrlich. His PhD dissertation was supervised by John Archibald Wheeler, titled Some Consequences of Mach’s Principle for General Relativity.[1]

While at Princeton, he

• held the Hibben scholarship,
• wrote for the Nassau literary magazine,
• was a four-year member of the Whig-Clio senate.
• was elected to the Phi Beta Kappa Society at the end of the junior year.

It's said that John Wheeler arranged a tea-time visit for his class, which to Arthur's pleasure had the company of Albert Einstein. Throughout his scientific career, Arthur remained fond of Princeton.

His career as a physicist began at the Niels Bohr Institute in Copenhagen, and was a Fellow of the American-Scandinavian Foundation. Later in 1957, he went to Syracuse University as a postdoc to research quantum gravity - collaborating with Peter Bergmann, and remained at Syracuse as assistant professor and associate professor, until 1963 when he left to join the Physics Department at Yeshiva University in New York City.

He is known for formulating the Komar mass and Komar superpotential.

From 1962 until his retirement in 1997, he was on the faculty of Yeshiva University. During

• 1982–83 and 1986–87, he served as program director for gravitational physics.
• 1991–92, he served as a consultant with specific responsibility for the LIGO project to observe and analyze gravitational radiation.
• 1968–78, he was Dean of the Yeshiva’s Belfer graduate school of science,
• 1978–1982, he served as chairman of the physics department,
• 1983–86, he was chairman of the division of natural science,
• 1984–1997, he served as an adjunct professor at NYU.

Still associated with Yeshiva, Arthur took leave on three occasions to work with the National Science Foundation, as program director for gravitational physics there.

• A. B. Komar (1970). "The quantitative epistemological content of Bohr's Correspondence Principle". Synthese. 21 (1): 83–92. doi:10.1007/bf00414189. S2CID 46961397.

• Arthur Komar (1959). "Covariant Conservation Laws in General Relativity". Phys. Rev. 113 (3): 934. Bibcode:1959PhRv..113..934K. doi:10.1103/PhysRev.113.934.
• A. B. Komar (1963). "Positive-Definite Energy Density and Global Consequences for General Relativity". Phys. Rev. 129 (4): 1873. Bibcode:1963PhRv..129.1873K. doi:10.1103/PhysRev.129.1873.
• A. B. Komar (1962). "Asymptotic Covariant Conservation Laws for Gravitational Radiation". Phys. Rev. 127 (4): 1411. Bibcode:1962PhRv..127.1411K. doi:10.1103/PhysRev.127.1411.

• A. B. Komar (1984). "Enlarged gauge symmetry of gravitation theory". Phys. Rev. D. 30 (2): 305–308. Bibcode:1984PhRvD..30..305K. doi:10.1103/PhysRevD.30.305. Archived from the original on 2013-06-24.
• A. B. Komar (1981). "Relativistic action at a distance and quasiseparability". Phys. Rev. D. 24 (8): 2330–2331. Bibcode:1981PhRvD..24.2330K. doi:10.1103/PhysRevD.24.2330. Archived from the original on 2013-06-24.

• Komar, A. B. (1956). "Necessity of Singularities in the Solution of the Field Equations of General Relativity". Physical Review. 104 (2): 544–546. Bibcode:1956PhRv..104..544K. doi:10.1103/PhysRev.104.544.