Covariant noether identities in covariant field theories
Covariant Noether identities in covariant field theories
DIFFERENTIAL GEOMETRY↗
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Fixed points in a transformation group.
Proof of theorem, let /X, T, pi/ be transformation group, where X is Peano continuum with end point fixed under T
FIXED POINT↗
The equations of motion and kinetic energy for third order fluids
Stress equations for motion and kinetic energy analysis of third order fluids
FLUID MECHANICS↗
Effect of gyro-viscosity on Rayleigh-Taylor instability of a plasma
Gyro-viscosity effect on Rayleigh-Taylor plasma instability
PLASMA INSTABILITY↗
An inverse for the Jaumann derivative and some applications to the rheology of viscoelastic fluids.
Inverse operation for Jaumann derivative /integration/ applied to rheological equations of state for viscoelastic fluids
VISCOELASTIC FLOW↗
A complex vectorial formalism in general relativity.
Complex vectorial formalism in general relativity, discussing Riemann connection related to representation of Lorentz group by three- dimensional linear space
TENSOR ANALYSIS↗
Use of transformations in multiparameter data sorting.
Multiparameter data sorting technique for one- parameter information represented by simple distribution described by appropriate transformation coefficients
TRANSFORMATION TENSOR↗
Adaptor for Measuring Principal Strains with Tuckerman Strain Gage
An adapter is described which uses three Tuckerman optical strain gages to measure the displacement of the three vortices of an equilateral triangle along lines 120 degrees apart. These displacements are substituted in well-known equations in order to compute the magnitude and direction of the principal strains. Tests of the adaptor indicate that principal strains over a gage length of 1.42 inch may be measured with a systematic error not exceeding 4 percent and a mean observational error of the order of + or minus 0.000006. The maximum observed error in strain was of the order of 0.00006. The directions of principal strains for unidirectional stress were measured with the adaptor with an average error of the order of 1 degree.
INSTRUMENTS-STRAIN GAUGES-RUGE & DE FOREST↗
Temporal Variation of the Geopotential: Process and Interactions Among the Earth's Subsystems
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temporal variation geopotential earth earth's subs↗
Multiple Field Scalar-Theories of Gravity and Cosmology
We consider multiple scalar fields coupled to gravity, with special attention given to two-field theories.
solar system tests cosmological evolution dust era↗