Doubly Semiequivelar Maps on Torus and Klein Bottle

<div>Illustration of the methodology. (a) DSEM type: [36: 33, 42]1. (b) lk(a1) = C6(a2, 1, 2, a3, 3, 4) <svg height="7.35473pt" id="M183" style="vertical-align:-0.3499303pt" version="1.1" viewbox="-0.0498162 -7.0048 18.3548 7.35473" width="18.3548pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M567 323V373H69V323H567ZM567 138V188H69V138H567Z"></path></g><g transform="matrix(.013,0,0,-0.013,5.776,0)"><path d="M901 255C852 301 765 395 674 502L652 487L727 373H69V323H759L804 255L760 188H69V138H727L652 23L674 8C765 115 852 209 901 255Z"></path></g></svg> lk(a2) or lk(4).</div>

Journal of Mathematics

Doubly Semiequivelar Maps on Torus and Klein Bottle

Figure 2