Fig. 1. A time sequence of adsorbate patterns evolving on a wire of radius R=10.19b. The cylindrical surface is spread into a rectangle in the plane, with the circumference direction in the horizontal direction. The average coverage is C₀=0.5. As time goes on, the adsorbates separate into two phases. Stripes emerge, coarsen, straighten, and align along the circumference of the wire.

Fig. 2. Snapshots of adsorbate patterns on wires of several radii. The average coverage is C₀=0.5. The thinner the wire, the thinner the stripes, and the better they align.

Fig. 3. Snapshots of adsorbate patterns on wires of several radii. The average coverage is C₀=0.4. For a thick wire, the adsorbates form dots. For a thin wire, the dots elongate. For a very thin wire, each dot is so elongated that it forms a ring around the wire.

Fig. 4. Snapshots of adsorbate patterns on the inner surface of tubes of several radii. The average coverage is C₀=0.5. For a thick tube, the stripes align along the tube axis. As the tube radius decreases, the space shortage first forces the stripes into spirals, and finally into rings.

Fig. 5. Snapshots of adsorbate patterns on the inner surface of tubes of several radii. The average coverage is C₀=0.4. As the tube radius decreases, the dots first elongate along the tube axis, then become axial stripes, and finally switch to rings.