%0 Journal Article %T An extension of the Derrida-Lebowitz-Speer-Spohn equation %A Charles Bordenave %A Pierre Germain %A Thomas Trogdon %J Physics %D 2014 %I arXiv %X Derrida, Lebowitz, Speer and Spohn have proposed a simplified model to describe the low temperature Glauber dynamics of an anchored Toom interface. We show how the derivation of the Derrida-Lebowitz-Speer-Spohn equation can be prolonged to obtain a new equation, generalizing the models obtained in the paper by these authors. We then investigate its properties from both an analytical and numerical perspective. Specifically, a numerical method is presented to approximate solutions of the prolonged equation. Using this method, we investigate the relationship between the solutions of the prolonged equation and the Tracy--Widom GOE distribution. %U http://arxiv.org/abs/1402.6620v2