Accepted Manuscript Interaction of multi-lumps within the Kadomtsev–Petviashvili equation Wencheng Hu, Wenhua Huang, Zhiming Lu, Yury Stepanyants PII: S0165-2125(17)30154-3 DOI: https://doi.org/10.1016/j.wavemoti.2017.12.004 Reference: WAMOT 2213 To appear in: Wave Motion Received date : 3 August 2017 Revised date : 13 November 2017 Accepted date : 11 December 2017 Please cite this article as: W. Hu, W. Huang, Z. Lu, Y. Stepanyants, Interaction of multi-lumps within the Kadomtsev–Petviashvili equation, Wave Motion (2017), https://doi.org/10.1016/j.wavemoti.2017.12.004 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.