84 citations · 656 across the 80 of their papers we have counts for
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gr-qc2026
Versal transition scenarios in inflationary cosmology: slow roll, ultra-slow roll, and oscillatory exit
Spiros Cotsakis
We develop a physics-facing version of the persistence/transition-variety framework for scalar-field cosmology, tailored to inflationary dynamics. The guiding idea is that observat…
gr-qc2026
Persistence and Transition Varieties in Scalar Field Cosmology
Spiros Cotsakis
We develop a unified bifurcation-theoretic description of Friedmann--Robertson--Walker cosmologies with a scalar field, a barotropic fluid of index , and spatial curvature. For…
gr-qc2026
Mode interactions in scalar field cosmology
Spiros Cotsakis, Ignatios Antoniadis
We study the dynamics of spatially homogeneous Friedmann--Robertson--Walker universes filled with a massive scalar field in a neighbourhood of the massless transition . At thi…