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Dynamical laws of superenergy in General Relativity
, 707
"... Abstract. Bel and BelRobinson tensors were introduced nearly fifty years ago in an attempt to generalize to gravitation the energymomentum tensor of electromagnetism. This generalization was successful from the mathematical point of view because these tensors share mathematical properties which ar ..."
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are remarkably similar to those of the energymomentum tensor of electromagnetism. However, the physical role of these tensors in General Relativity has remained obscure and no interpretation has achieved wide acceptance. In principle, they cannot represent energy and the term superenergy has been coined
Algebraic Rainich theory and antisymmetrisation in higher dimensions
 Class. Quantum Grav
, 2002
"... Abstract. The classical Rainich(MisnerWheeler) theory gives necessary and sufficient conditions on an energymomentum tensor T to be that of a Maxwell field (a 2form) in four dimensions. Via Einstein’s equations these conditions can be expressed in terms of the Ricci tensor, thus providing condit ..."
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Cited by 3 (0 self)
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Abstract. The classical Rainich(MisnerWheeler) theory gives necessary and sufficient conditions on an energymomentum tensor T to be that of a Maxwell field (a 2form) in four dimensions. Via Einstein’s equations these conditions can be expressed in terms of the Ricci tensor, thus providing
Gravitoelectromagnetism
, 1998
"... We develop and apply a fully covariant 1 + 3 electromagnetic analogy for gravity. The free gravitational field is covariantly characterized by the Weyl gravitoelectric and gravitomagnetic spatial tensor fields, whose dynamical equations are the Bianchi identities. Using a covariant generalization ..."
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of spatial vector algebra and calculus to spatial tensor fields, we exhibit the covariant analogy between the tensor Bianchi equations and the vector Maxwell equations. We identify gravitational source terms, couplings and potentials with and without electromagnetic analogues. The nonlinear vacuum Bianchi
Market Assessment for Capturing Water Conservation Opportunities in the Federal Sector Market Assessment for Capturing Water Conservation Opportunities in the Federal Sector
"... Preface The mission of the U.S. Department of Energy's Federal Energy Management Program (FEMP) is to reduce the cost of government by advancing energy efficiency, water conservation, and the use of solar and other renewable technologies. This is accomplished by creating partnerships, leveragi ..."
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the water conservation opportunities and answer the key questions necessary for FEMP to make recommendations on whether or not to proceed with strategies for water conservation primarily through the development of a technologyspecific SuperEnergy Savings Performance Contract (ESPC). iii Summary