FIG. 3.
Topological fingerprints of a hexagonal fractal image. Top and bottom panels are for β0 and β1 barcodes, respectively. The horizontal axis is the filtration parameter, i.e., radius. Note the separation of ring structures in the β1 barcode.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.