In this talk, we will explore various approaches to extending fundamental concepts and theorems of graph theory to signed graphs, focusing particularly on the connections with spectral graph theory and matroid theory. We will discuss the unique properties and key concepts of signed graphs, examining how familiar results in graph theory reveal new insights when applied to signed graphs. Through this exploration, we aim to highlight the potential applications and expanded perspectives that signed graph theory offers. 강연시간 : 16:40-17:10