# A critique of the Mean Field Approximation in preferential attachment networks

@article{Ruijgrok2020ACO, title={A critique of the Mean Field Approximation in preferential attachment networks}, author={Matthijs Ruijgrok}, journal={ArXiv}, year={2020}, volume={abs/2006.13295} }

The Mean Field Approximation (MFA), or continuum method, is often used in courses on Networks to derive the degree distribution of preferential attachment networks. This method is simple and the outcome is close to the correct answer. However, this paper shows that the method is flawed in several aspects, leading to unresolvable contradictions. More importantly, the MFA is not explicitly derived from a mathematical model. An analysis of the implied model shows that it makes an approximation…

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