Zeros of the derivatives of Faber polynomials associated with a universal covering map. - Byung-Geun Oh (J. Approx. Theory, 2007)

Duality Properties of Strong Isoperimetric Inequalities on a Planar Graph and Combinatorial Curvatures. - Byung-Geun Oh (Discret. Comput. Geom., 2014)

Strong Isoperimetric Inequalities and Combinatorial Curvatures on Multiply Connected Planar Graphs. - Byung-Geun Oh; Jeehyeon Seo (Discret. Comput. Geom., 2016)

On the number of vertices of positively curved planar graphs. - Byung-Geun Oh (Discret. Math., 2017)