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Exact Finite-Length Theory of Uniform Car Parking: Spatial Laws, Absorption, and Aggregation

Ganesh P Kumar

cs.ROarXiv:2608.22671

Abstract

The uniform car-parking process is the one-dimensional random sequential adsorption of unit cars on a segment of finite length s: cars arrive at uniformly random positions and park wherever they fit, until no gap admits another. This paper develops the exact finite-s theory. The joint density of the parked positions is resolved into jamming cells, on each of which it is a rational function, and evaluated by a subset recursion in O(2n n) operations; the marginal and gap order statistics are obtained as hyperlogarithms whose weight is fixed by the number of coordinates integrated out; and the absorption count and the aggregate quantities are treated through the integral equation descending from Rényi.

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