3 citations · 15 across the 10 of their papers we have counts for
4 papers · 1 filter
e to the A, in a New Way, Some More to Say
P. Federbush
Expressions are given for the exponential of a hermitian matrix, A. Replacing A by iA these are explicit formulas for the Fourier transform of exp(iA). They extend to any size matr…
On Schwarzschild-Like Solutions in Curvature-Quadratic Gravity
Paul Federbush
Partial results are obtained for Schwarzschild- like solutions in a gravity theory with action density (-g)^(1/2)[Rik^2+bR^2]. A seven parameter family of implicit solutions is fou…
Linear Inflation in Curvature-Quadratic Gravity
Paul Federbush
We continue our study of gravity described by the action density (-g)^(1/2)(R_ik^2+bR^2); and look for cosmological solutions of gravity coupled to dust, for the closed isotropic m…
A Note on Singular Instantons
Paul Federbush
We point out the existence of some singular, radial, spin-0 instantons for curvature-quadratic gravity theories. They are complex.