Formula for Regularized Trace of a Second Order Differential Operator with Involution
2008 ◽
Vol 198
(2)
◽
pp. 471-480
◽
Basis property of a system of eigenfunctions of a second-order differential operator with involution
2019 ◽
Vol 29
(2)
◽
pp. 183-196
2006 ◽
Vol 6
(3)
◽
pp. 269-290
◽
2021 ◽
2016 ◽