Tessellation refers to the process of covering a surface with a pattern of geometric shapes, such as triangles, squares, or hexagons, without any gaps or overlaps. This research area explores the mathematical principles and algorithms behind creating tessellations, as well as their applications in various fields such as computer graphics, architecture, and art. Researchers in this area may study topics such as symmetry, tessellation methods, and the aesthetics of different tessellation patterns. Additionally, tessellation research may also involve developing new computational tools and software for generating and manipulating tessellations.