Abstract
We study certain renormalised first passage bridges of self-similar processes, generalising the “Brownian co-ascent process” discussed by Panzo (Sém. Prob. L, 2019) and introduced by Rosenbaum and Yor (Sém. Prob. XLVI, 2014). We provide a characterisation of co-ascent processes via Palm measures, namely that the co-ascent of a self-similar process is the process under the Palm distribution associated with its record measure. We use this representation to derive a distributional identity for α-stable Lévy-subordinators with α∈(0,1).
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