2 papers
gr-qc2025
The Possibility of Formation of Compact Boson Stars via Cosmological Evolution of a Background Scalar Field
Yu Miyauchi, Takahiro Tanaka
Boson stars, hypothetical astrophysical objects bound by the self-gravity of a scalar field, have been widely studied as a type of exotic compact object that is horizonless and pro…
math.DS2025
Generalized Stochastic Resilience for Early Warning Signals Based on Koopman Operator
Yuta Miyauchi, Masahiro Ikeda, Yoshinobu Kawahara
Developing methods for detecting tipping phenomena at an early stage is an important problem in various fields such as ecology, medicine, and economics. A tipping phenomenon is cha…