Petkov, Vesselin; Popov, Georgi Semi-classical trace formula and clustering of eigenvalues for Schrödinger operators. (English) Zbl 0919.35095 Ann. Inst. Henri Poincaré, Phys. Théor. 68, No. 1, 17-83 (1998). Reviewer: Marcel Griesemer (Regensburg) MSC: 35P20 35J10 35P15 × Cite Format Result Cite Review PDF Full Text: Numdam EuDML
Petkov, Vesselin; Popov, Georgi On the Lebesgue measure of the periodic points of a contact manifold. (English) Zbl 0816.58008 Math. Z. 218, No. 1, 91-102 (1995). Reviewer: V.Pelkov (Bordeaux) MSC: 58C35 53C15 × Cite Format Result Cite Review PDF Full Text: DOI EuDML