Department of Mathematics, Faculty of Science, Okayama University Acta Medica Okayama 0030-1566 57 1 2015 ZERO MEAN CURVATURE SURFACES IN LORENTZ-MINKOWSKI 3-SPACE AND 2-DIMENSIONAL FLUID MECHANICS 173 200 EN Shoichi Fujimori Young Wook Kim Sung-Eun Koh Wayne Rossman Heayong Shin Masaaki Umehara Kotaro Yamada Seong-Deog Yang 10.18926/mjou/53048 Space-like maximal surfaces and time-like minimal surfaces in Lorentz-Minkowski 3-space R³₁ are both characterized as zero mean curvature surfaces. We are interested in the case where the zero mean curvature surface changes type from space-like to time-like at a given non-degenerate null curve. We consider this phenomenon and its interesting connection to 2-dimensional fluid mechanics in this expository article. No potential conflict of interest relevant to this article was reported.