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Consider an infinite tree with random degrees, i.i.d. over the sites, with a prescribed probability distribution with generating function G(s). We consider the following variation of Renyi's parking problem, alternatively called blocking…

Probability · Mathematics 2009-11-13 H. Dehling , S. R. Fleurke , C. Kuelske

Let $(A_u : u \in \mathbb{B})$ be i.i.d.~non-negative integers that we interpret as car arrivals on the vertices of the full binary tree $ \mathbb{B}$. Each car tries to park on its arrival node, but if it is already occupied, it drives…

Probability · Mathematics 2022-06-02 David Aldous , Alice Contat , Nicolas Curien , Olivier Hénard

Unit-interval parking functions are subset of parking functions in which cars park at most one spot away from their preferred parking spot. In this paper, we characterize unit-interval parking functions by understanding how they decompose…

The conceptions of $G$-parking functions and $G$-multiparking functions were introduced in [15] and [12] respectively. In this paper, let $G$ be a connected graph with vertex set $\{1,2,...,n\}$ and $m\in V(G)$. We give the definition of…

Combinatorics · Mathematics 2008-10-23 Hungyung Chang , Po-Yi Huang , Jun Ma , Yeong-Nan Yeh

For a directed graph G on vertices {0,1,...,n}, a G-parking function is an n-tuple (b_1,...,b_n) of non-negative integers such that, for every non-empty subset U of {1,...,n}, there exists a vertex j in U for which there are more than b_j…

Combinatorics · Mathematics 2007-05-23 Denis Chebikin , Pavlo Pylyavskyy

Given a positive-integer-valued vector $u=(u_1, \dots, u_m)$ with $u_1<\cdots<u_m$. A $u$-parking function of length $m$ is a sequence $\pi=(\pi_1, \dots, \pi_m)$ of positive integers whose non-decreasing rearrangement $(\lambda_1, \dots,…

Combinatorics · Mathematics 2021-12-08 Mei Yin

For any integers $1\leq k\leq n$, we introduce a new family of parking functions called $k$-vacillating parking functions of length $n$. The parking rule for $k$-vacillating parking functions allows a car with preference $p$ to park in the…

Combinatorics · Mathematics 2024-08-27 Bruce Fang , Pamela E. Harris , Brian M. Kamau , David Wang

There is a well-known bijection between parking functions of a fixed length and maximal chains of the noncrossing partition lattice which we can use to associate to each set of parking functions a poset whose Hasse diagram is the union of…

Combinatorics · Mathematics 2016-09-01 Melody Bruce , Michael Dougherty , Max Hlavacek , Ryo Kudo , Ian Nicolas

Suppose that $n$ drivers each choose a preferred parking space in a linear car park with $m$ spaces. Each driver goes to the chosen space and parks there if it is free, and otherwise takes the first available space with larger number (if…

Combinatorics · Mathematics 2008-07-08 Peter J. Cameron , Daniel Johannsen , Thomas Prellberg , Pascal Schweitzer

Transit functions were introduced as models of betweenness on undirected structures. Here we introduce directed transit function as the directed analogue on directed structures such as posets and directed graphs. We first show that…

Searching for a parking spot can waste time and gasoline. This waste can be reduced by assigning drivers to parking lots based on their destination and arrival time. In such a system, drivers could request a parking spot in advance and be…

Optimization and Control · Mathematics 2015-07-14 Nicole Taheri , Jia Yuan Yu , Robert Shorten

Let $\Delta$ be an integer $n \times n$-matrix which satisfies the conditions: $\det \Delta\neq 0$, $\Delta_{ij}\leq 0\text{ for }i\neq j,$ and there exists a vector ${\bf r}=(r_1,\ldots,r_n)>0$ such that ${\bf r}\Delta \geq 0$. Here the…

Combinatorics · Mathematics 2014-07-09 Jun Ma , Yeong-Nan Yeh

In 1980, G. Kreweras gave a recursive bijection between forests and parking functions. In this paper we construct a nonrecursive bijection from forests onto parking functions, which answers a question raised by R. Stanley. As a by-product,…

Combinatorics · Mathematics 2008-10-03 Heesung Shin

We define a "shifted analogue" $\mathrm{SH}_n$ of the parking function symmetric function $\mathrm{PF}_n$. The expansion of $\mathrm{SH}_n$ in terms of three bases for shifted symmetric functions is explicitly described. We don't know a…

Combinatorics · Mathematics 2024-05-06 Richard P. Stanley

We introduce a new parking procedure called MVP parking in which $n$ cars sequentially enter a one-way street with a preferred parking spot from the $n$ parking spots on the street. If their preferred spot is empty, they park there.…

Combinatorics · Mathematics 2023-02-21 Pamela E. Harris , Brian M. Kamau , J. Carlos Martínez Mori , Roger Tian

A permutation of length $n$ is called a flattened partition if the leading terms of maximal chains of ascents (called runs) are in increasing order. We analogously define flattened parking functions: a subset of parking functions for which…

Combinatorics · Mathematics 2023-06-13 Jennifer Elder , Pamela E. Harris , Zoe Markman , Izah Tahir , Amanda Verga

Place a car independently with probability $p$ at each site of a graph. Each initially vacant site is a parking spot that can fit one car. Cars simultaneously perform independent random walks. When a car encounters an available parking spot…

Probability · Mathematics 2018-09-07 Michael Damron , Janko Gravner , Matthew Junge , Hanbaek Lyu , David Sivakoff

We recall that the $k$-Naples parking functions of length $n$ (a generalization of parking functions) are defined by requiring that a car which finds its preferred spot occupied must first back up a spot at a time (up to $k$ spots) before…

We consider the notion of classical parking functions by introducing randomness and a new parking protocol, as inspired by the work presented in the paper ``Parking Functions: Choose your own adventure,'' (arXiv:2001.04817) by Carlson,…

Combinatorics · Mathematics 2022-11-02 Irfan Durmić , Alex Han , Pamela E. Harris , Rodrigo Ribeiro , Mei Yin

We illustrate the experimental, empirical, approach to mathematics (that contrary to popular belief, is often rigorous), by using parking functions and their "area" statistic, as a case study. Our methods are purely finitistic and…

Combinatorics · Mathematics 2018-06-08 Yukun Yao , Doron Zeilberger