65 citations · 157 across the 5 of their papers we have counts for
5 papers
Series expansion of weighted Finsler-Kato-Hardy inequalities
Konstantinos Tzirakis
In this work, we consider weighted anisotropic Hardy inequalities and trace Hardy inequalities involving a general Finsler metric. We follow a unifying approach, by establishing fi…
Inflationary potentials in DBI models
Dennis Bessada, William H. Kinney, Konstantinos Tzirakis
We study DBI inflation based upon a general model characterized by a power-law flow parameter and speed of sound , where and are constant…
Tensors, non-Gaussianities, and the future of potential reconstruction
Brian A. Powell, Konstantinos Tzirakis, William H. Kinney
We present projections for reconstruction of the inflationary potential expected from ESA's upcoming Planck Surveyor CMB mission. We focus on the effects that tensor perturbations…
Non-canonical generalizations of slow-roll inflation models
Konstantinos Tzirakis, William H. Kinney
We consider non-canonical generalizations of two classes of simple single-field inflation models. First, we study the non-canonical version of "ultra-slow roll" inflation, which is…
Inflation over the hill
Konstantinos Tzirakis, William H. Kinney
We calculate the power spectrum of curvature perturbations when the inflaton field is rolling over the top of a local maximum of a potential. We show that the evolution of the fiel…