The linearized 3+1 TEGR system has imaginary eigenvalues in its principal symbol but becomes strongly hyperbolic after gauge fixing isolated problematic sectors.
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Analytic black-hole solutions are reconstructed via conservation laws from variational symmetries in symmetric teleparallel scalar-tensor gravity, and the theory is shown to support viable compact-star interiors matched to extremal Reissner-Nordström exteriors.
Hybrid and logarithmic f(T) models in teleparallel gravity with an oscillating deceleration parameter q(t) = m cos(kt) - 1 produce cyclic cosmic evolution consistent with current acceleration for m ≈ 0.48.
citing papers explorer
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Hyperbolicity analysis of the linearised 3+1 formulation in the Teleparallel Equivalent of General Relativity
The linearized 3+1 TEGR system has imaginary eigenvalues in its principal symbol but becomes strongly hyperbolic after gauge fixing isolated problematic sectors.
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Compact Stars in Symmetric Teleparallel Scalar-Tensor Gravity
Analytic black-hole solutions are reconstructed via conservation laws from variational symmetries in symmetric teleparallel scalar-tensor gravity, and the theory is shown to support viable compact-star interiors matched to extremal Reissner-Nordström exteriors.
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Periodic cosmic evolution in Hybrid and Logarithmic Teleparallel Gravity
Hybrid and logarithmic f(T) models in teleparallel gravity with an oscillating deceleration parameter q(t) = m cos(kt) - 1 produce cyclic cosmic evolution consistent with current acceleration for m ≈ 0.48.