A Birman-Schwinger Principle in Galactic Dynamics

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Utilizing the Birman-Schwinger principle from quantum mechanics, this monograph explores stability properties of steady state solutions in galactic dynamics. It begins with foundational concepts in nonrelativistic dynamics and the Vlasov-Poisson system, leading to the application of the principle in determining when the "best constant" in the Antonov stability estimate is achieved. The final chapters examine the Guo-Lin operator and invariance properties of the Vlasov-Poisson system, accompanied by appendices that provide essential background on various mathematical models and theories.