Double bubbles in the 3-torus
  We present a conjecture, based on computational results, on the area minimizing way to enclose and separate two arbitrary volumes in the flat cubic 3-torus. For comparable small volumes, we prove that an area minimizing double bubble in the 3-torus is the standard double bubble from R^3. 
Miguel Carri\'on-\'Alvarez (UC Riverside), Joseph Corneli (New College   of Florida), Genevieve Walsh (UC Davis), Shabnam Be...