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Evolutionary graph theory studies the evolutionary dynamics in a population structure given as a connected graph. Each node of the graph represents an individual of the population, and edges determine how offspring are placed. We consider…

Neural and Evolutionary Computing · Computer Science 2017-06-22 Krishnendu Chatterjee , Rasmus Ibsen-Jensen , Martin A. Nowak

Evolutionary dynamics on graphs can lead to many interesting and counterintuitive findings. We study the Moran process, a discrete time birth-death process, that describes the invasion of a mutant type into a population of wild-type…

Populations and Evolution · Quantitative Biology 2015-04-23 Laura Hindersin , Arne Traulsen

The Moran process is a random process that models the spread of genetic mutations through graphs. If the graph is connected, the process eventually reaches "fixation", where every vertex is a mutant, or "extinction", where no vertex is a…

Probability · Mathematics 2019-07-16 Leslie Ann Goldberg , John Lapinskas , David Richerby

Evolutionary graph theory studies the evolutionary dynamics of populations structured on graphs. A central problem is determining the probability that a small number of mutants overtake a population. Currently, Monte Carlo simulations are…

Computer Science and Game Theory · Computer Science 2013-01-14 Paulo Shakarian , Patrick Roos , Geoffrey Moores

The Moran process is a classic stochastic process that models invasion dynamics on graphs. A single "mutant" (e.g., a new opinion, strain, social trait etc.) invades a population of residents spread over the nodes of a graph. The mutant…

Data Structures and Algorithms · Computer Science 2022-04-26 Joachim Brendborg , Panagiotis Karras , Andreas Pavlogiannis , Asger Ullersted Rasmussen , Josef Tkadlec

We consider the Moran process, as generalized by Lieberman, Hauert and Nowak (Nature, 433:312--316, 2005). A population resides on the vertices of a finite, connected, undirected graph and, at each time step, an individual is chosen at…

Computational Complexity · Computer Science 2014-03-21 Josep Díaz , Leslie Ann Goldberg , George B. Mertzios , David Richerby , Maria Serna , Paul G. Spirakis

The Moran process, as studied by [Lieberman, E., Hauert, C. and Nowak, M. Evolutionary dynamics on graphs. Nature 433, pp. 312-316 (2005)], is a stochastic process modeling the spread of genetic mutations in populations. In this process,…

Populations and Evolution · Quantitative Biology 2021-07-27 Themistoklis Melissourgos , Sotiris Nikoletseas , Christoforos Raptopoulos , Paul Spirakis

We study the fixation probability for two versions of the Moran process on the random graph $G_{n,p}$ at the threshold for connectivity. The Moran process models the spread of a mutant population in a network. Throughtout the process there…

Probability · Mathematics 2025-02-17 Alan Frieze , Wesley Pegden

The multi-type Moran process is an evolutionary process on a connected graph $G$ in which each vertex has one of $k$ types and, in each step, a vertex $v$ is chosen to reproduce its type to one of its neighbours. The probability of a vertex…

Data Structures and Algorithms · Computer Science 2023-03-15 Leslie Ann Goldberg , Marc Roth , Tassilo Constantin Schwarz

Evolution in finite populations is often modelled using the classical Moran process. Over the last ten years this methodology has been extended to structured populations using evolutionary graph theory. An important question in any such…

Populations and Evolution · Quantitative Biology 2015-05-25 Karan Pattni , Mark Broom , Jan Rychtar , Lara J. Silvers

Computing the rate of evolution in spatially structured populations is difficult. A key quantity is the fixation time of a single mutant with relative reproduction rate $r$ which invades a population of residents. We say that the fixation…

Populations and Evolution · Quantitative Biology 2025-09-18 David A. Brewster , Martin A. Nowak , Josef Tkadlec

This paper is based on the complete classification of evolutionary scenarios for the Moran process with two strategies given by Taylor et al. (B. Math. Biol. 66(6): 1621--1644, 2004). Their classification is based on whether each strategy…

Populations and Evolution · Quantitative Biology 2018-11-27 Evandro P. Souza , Eliza M. Ferreira , Armando G. M. Neves

Evolutionary dynamics has been classically studied for homogeneous populations, but now there is a growing interest in the non-homogenous case. One of the most important models has been proposed by Lieberman, Hauert and Nowak, adapting to a…

Populations and Evolution · Quantitative Biology 2015-02-12 Fernando Alcalde Cuesta , Pablo González Sequeiros , Álvaro Lozano Rojo

Broom and Rycht\'{a}\v{r} [Proc. R. Soc. A (2008) 464, 2609--2627] found an exact solution for the fixation probabilities of the Moran process for a structured population, in which the interaction structure among individuals is given by the…

Populations and Evolution · Quantitative Biology 2020-03-19 Evandro P. de Souza , Armando G. M. Neves

The formula for the probability of fixation of a new mutation is widely used in theoretical population genetics and molecular evolution. Here we derive a series of identities, inequalities and approximations for the exact probability of…

Populations and Evolution · Quantitative Biology 2015-03-10 David M. McCandlish , Charles L. Epstein , Joshua B. Plotkin

In this paper, we study the absorption and fixation times for evolutionary processes on graphs, under different updating rules. While in Moran process a single neighbour is randomly chosen to be replaced, in proliferation processes other…

Populations and Evolution · Quantitative Biology 2026-01-16 Fernando Alcalde Cuesta , Gustavo Guerberoff , Álvaro Lozano Rojo

We study evolutionary dynamics on graphs in which each step consists of one birth and one death, also known as the Moran processes. There are two types of individuals: residents with fitness $1$ and mutants with fitness $r$. Two standard…

Probability · Mathematics 2026-01-14 David A. Brewster , Yichen Huang , Michael Mitzenmacher , Martin A. Nowak

Population structure can have a significant effect on evolution. For some systems with sufficient symmetry, analytic results can be derived within the mathematical framework of evolutionary graph theory which relate to the outcome of the…

Populations and Evolution · Quantitative Biology 2019-03-11 Christopher E. Overton , Mark Broom , Christoforos Hadjichrysanthou , Kieran J. Sharkey

The fixation probability of a mutant in the evolutionary dynamics of Moran process is calculated by the Monte-Carlo method on a few families of clique-based graphs. It is shown that the complete suppression of fixation can be realized with…

Populations and Evolution · Quantitative Biology 2018-01-17 Jeong-Ok Choi , Unjong Yu

We consider the Moran process in a graph called the "star" and obtain the asymptotic expression for the fixation probability of a single mutant when the size of the graph is large. The expression obtained corrects the previously known…

Populations and Evolution · Quantitative Biology 2016-03-21 Fabio A. C. C. Chalub
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