Computations and global properties for traces of Bessel’s Dirichlet form

BenAmor, Ali; Moussa, Rafed

doi:10.2989/16073606.2020.1781281

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Parts Of the Trace Of The Bessel Process1

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2021

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“…We assume that µ is infinite. We consider the trace of the Bessel process with respect to the measure m (see [BM19]) defined by Ď := {u ∈ L 2 (X, m) : u ∈ AC s ([0, 1]),…”

Section: Parts Of the Trace Of The Bessel Processmentioning

confidence: 99%

Decomposition formulae for Dirichlet forms and their corollaries

BenAmor¹,

Moussa²

2019

Preprint

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We provide decompositions of Dirichlet forms into recurrent and transient parts as well as into conservative and dissipative parts, in the framework of Hausdorff state spaces. Combining both formulae we write every Dirichlet form as the sum of a recurrent, dissipative and transient conservative Dirichlet forms. Besides, we prove that Mosco convergence preserves invariant sets and that a Dirichlet form shares the same invariants sets with its approximating Dirichlet forms E (t) and E (β) . Finally we show the equivalence between conservativeness (resp. dissipativity) of a Dirichlet form and the conservativeness (reps. dissipativity) of E (t) and E (β) . The elaborated results are enlightened by some examples.

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“…We assume that µ is infinite. We consider the trace of the Bessel process with respect to the measure m (see [BM19]) defined by Ď := {u ∈ L 2 (X, m) : u ∈ AC s ([0, 1]),…”

Section: Parts Of the Trace Of The Bessel Processmentioning

confidence: 99%