Xijun Hu, Yuwei Ou, Xiuting Tang, “Linear Stability of an Elliptic Relative Equilibrium in the Spatial $n$-Body Problem via Index Theory”, Regul. Chaotic Dyn., 28:4-5 (2023), 731–755
A. S. Demidov, Equations of Mathematical Physics, 2023, 91
Pierre Schapira, Lecture Notes in Mathematics, 2313, Mathematics Going Forward, 2023, 43
Graham Cox, Yuri Latushkin, Alim Sukhtayev, “Fredholm determinants, Evans functions and Maslov indices for partial differential equations”, Math. Ann., 2023
T. M. Koskamp, M. I. Katsnelson, K. J. A. Reijnders, “Semiclassical theory for plasmons in two-dimensional inhomogeneous media”, Phys. Rev. B, 108:8 (2023)
Guojing Ren, Hao Zhu, “Jump phenomena of the n-th eigenvalue of discrete Sturm–Liouville problems with application to the continuous case”, Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 153:2 (2023), 619
Peter Howard, “The Maslov Index and Spectral Counts for Linear Hamiltonian Systems on ${\mathbb {R}}$”, J Dyn Diff Equat, 35:3 (2023), 1947
V. L. Chernyshev, V. E. Nazaikinskii, A. V. Tsvetkova, “Lattice Equations and Semiclassical Asymptotics”, Russ. J. Math. Phys., 30:2 (2023), 152
A. A. Tolchennikov, “Trace of the Resolvent of the Laplace Operator on a Metric Graph”, Russ. J. Math. Phys., 30:4 (2023), 704
Samuël Borza, Wilhelm Klingenberg, “Regularity and Continuity Properties of the Sub-Riemannian Exponential Map”, J Dyn Control Syst, 29:4 (2023), 1385