Sumiko Horiuchi   Yoshiyuki Ohyama   
JOURNAL OF KNOT THEORY AND ITS RAMIFICATIONS 19(4) 503-507 2010年4月
Adams et al. introduce the notion of almost alternating links; non-alternating links which have a projection whose one crossing change yields an alternating projection. For an alternating knot K, we consider the number Alm(K) of almost alternating...