9,468 reputation
12153
bio website math.uvic.ca/faculty/aquas
location University of Victoria
age 47
visits member for 4 years, 4 months
seen 33 mins ago
The pic is the phase portrait of a simple "piecewise isometry". Define a map by sliding the two halves of the plane: the top half to the right; the lower half to the left and then rotate. Around each periodic point of the map there's a "periodic island". These are what are in the image...

MathOverflow 9,468 rep 12153
Mathematics 385 rep 18
French Language 108 rep 4
Stack Overflow 101 rep 2
TeX - LaTeX 101 rep 2

429 Votes Cast

all time   by type   month   week   day
241 up 293 question 13 2 2
188 down 136 answer