Recent Developments in Degenerate Higher Order Scalar Tensor Theories
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DOI: 10.1002/andp.202400263
Abstract: Degenerate Higher Order Scalar Tensor (DHOST) theories are the most general scalar‐tensor theories whose Lagrangian depends on the metric tensor and a single scalar field and its derivatives up to second order. They propagate only… read more here.
Keywords: degenerate higher; higher order; tensor; scalar tensor ... See more keywords
Orthogonal splitting in degenerate higher-order scalar-tensor theories
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DOI: 10.1142/s0219887825400109
Abstract: We explore a comprehensive analysis of the formalism governing the gravitational field equations in degenerate higher-order scalar-tensor theories. The propagation of these theories in the vacuum has a maximum of three degrees of freedom and… read more here.
Keywords: degenerate higher; higher order; scalar tensor; tensor theories ... See more keywords
On the dynamics of certain higher-order scalar difference equation: asymptotics, oscillation, stability
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DOI: 10.3906/mat-1912-89
Abstract: We construct the asymptotics for solutions of the higher-order scalar difference equation that is equivalent to the linear delay difference equation ∆y(n) = −g(n)y(n − k) . We assume that the coefficient of this equation… read more here.
Keywords: order scalar; higher order; difference equation; scalar difference ... See more keywords