Varfolomeev E. M. O normalnosti nekotorykh ellipticheskikh funktsionalno-differentsialnykh operatorov vtorogo poryadka // Uspekhi mat. nauk. 2006. T. 61, # 1.
S. 173–174.
Varfolomeev E. M. O nekotorykh svoistvakh ellipticheskikh i parabolicheskikh
funktsionalno-differentsialnykh operatorov, voznikayuschikh v nelineinoi optike // Sovremennaya matematika. Fundamentalnye napravleniya. 2007, fevral. T. 21. S. 5–36.
Varfolomeyev E. M. On the normality of some elliptic functional differential operators // The Fourth International Conference on Differential and Functional Differential Equations.
Steklov Math. Institute, Moscow, 2005. P. 80–81.
Varfolomeyev E. M. On the existence of orthonormal basis consisting of eigenfunctions of elliptic functional differential operators // Funct. Differ. Equ. 2006. V. 13, # 2. P. 267–304.
Varfolomeev E. M. O bifurkatsii Andronova–Khopfa
dlya kvazilineinykh parabolicheskikh
funktsionalno-differentsialnykh uravnenii s preobrazovaniyami prostranstvennykh peremennykh // Uspekhi mat. nauk. 2007. T. 62, # 2. S. 173–174.
