Dynamics of Partial Differential Equations
Volume 10 (2013)
Trace formula for fourth order operators on the circle
Pages: 343 – 352
We determine the trace formula for the fourth order operator on the circle. This formula is similar to the famous trace formula for the Hill operator obtained by Dubrovin, Its-Matveev and McKean-van Moerbeke.
trace formula, fourth order operator, Hill operator
2010 Mathematics Subject Classification