• A Partial Solution to the Baragar-Kontorovich Conjecture
  • Project Year: 2018
  • REU Student (s):   Gabriel Eiseman | Rutgers University-New Brunswick NJ  
  • Student 1 Institution: Rutgers University-New Brunswick
  • Project Mentor: Alex Kontorovich
  • Project Mentor Area: Mathematics
  • Project Abstract: I investigated the minimality of a construction for the fourth tangent circle to three tangent circles (aka the Apollonian circle). Baragar and Kontorovich (my mentor) discovered a general 7 step construction and I showed that under certain assumptions about arbitrary points it is indeed minimal. I also found a 5 step construction for when the circles' centers form a right triangle and showed it and known constructions for isosceles (5 steps) and equilateral (3 steps) triangles are minimal. I am pretty sure the assumption I made about arbitrary points, which is that only a certain subset of them actually need to be considered, is correct, but have not formalized the argument.