Manolov, S. A periodic algorithm for autonomous systems with matrix spectrum of resonance type in semi-even phase spaces. III. (Bulgarian) Zbl 0515.70026 God. Vissh. Uchebn. Zaved., Prilozhna Mat. 16(1980), No. 1, 105-112 (1981). MSC: 70K30 34C25 PDFBibTeX XMLCite \textit{S. Manolov}, God. Vissh. Uchebn. Zaved., Prilozh. Mat. 16, No. 1, 105--112 (1981; Zbl 0515.70026)
Manolov, S. A periodic algorithm for autonomous systems with matrix spectrum of resonance type in semi-even phase spaces. II. (Bulgarian) Zbl 0515.70025 God. Vissh. Uchebn. Zaved., Prilozhna Mat. 16(1980), No. 1, 91-103 (1981). MSC: 70K30 34C25 PDFBibTeX XMLCite \textit{S. Manolov}, God. Vissh. Uchebn. Zaved., Prilozh. Mat. 16, No. 1, 91--103 (1981; Zbl 0515.70025)
Manolov, S. A periodic algorithm for autonomous systems with matrix spectrum of resonance type in semi-even phase spaces. I. (Bulgarian) Zbl 0515.70024 God. Vissh. Uchebn. Zaved., Prilozhna Mat. 16(1980), No. 1, 83-90 (1981). MSC: 70K30 34C25 PDFBibTeX XMLCite \textit{S. Manolov}, God. Vissh. Uchebn. Zaved., Prilozh. Mat. 16, No. 1, 83--90 (1981; Zbl 0515.70024)
Shepeleva, R. P. Critical frequencies of canonical fractional-periodic equations which are invariant with respect to the inversion of time. (Russian) Zbl 0514.70023 Discrete and continuous dynamical systems, Collect., Vladivostok 1981, 7-20 (1981). MSC: 70H05 70K30 PDFBibTeX XML
Aizawa, Yoji Statistical properties of the forced Lorenz chaos - synergetic approach to the system identification. (English) Zbl 0514.58029 Random systems and dynamical systems, Proc. Symp., Kyoto 1981, RIMS Kokyuroku 439, 63-88 (1981). MSC: 37D45 PDFBibTeX XML
Manolov, S. Autonomous systems in semi-even phase spaces and with matrix spectrum of resonance type. (Bulgarian) Zbl 0512.70026 God. Vissh. Uchebn. Zaved., Prilozhna Mat. 16(1980), No. 1, 67-81 (1981). MSC: 70K30 34C25 34A34 PDFBibTeX XMLCite \textit{S. Manolov}, God. Vissh. Uchebn. Zaved., Prilozh. Mat. 16, No. 1, 67--81 (1981; Zbl 0512.70026)
Harris, B. J. On the spectrum of the periodic Dirac operator. (English) Zbl 0489.47003 Proc. R. Soc. Edinb., Sect. A 89, 55-62 (1981). MSC: 47A55 47A10 35P15 47L90 PDFBibTeX XMLCite \textit{B. J. Harris}, Proc. R. Soc. Edinb., Sect. A, Math. 89, 55--62 (1981; Zbl 0489.47003) Full Text: DOI
Glowacki, Pawel On functions with scattered spectra on lca groups. (English) Zbl 0489.43001 Stud. Math. 70, 147-152 (1981). MSC: 43A15 43A07 43A40 43A60 PDFBibTeX XMLCite \textit{P. Glowacki}, Stud. Math. 70, 147--152 (1981; Zbl 0489.43001) Full Text: DOI EuDML
Avron, Joseph E.; Simon, Barry Transient and recurrent spectrum. (English) Zbl 0488.47021 J. Funct. Anal. 43, 1-31 (1981). MSC: 47F05 47A10 47B25 PDFBibTeX XMLCite \textit{J. E. Avron} and \textit{B. Simon}, J. Funct. Anal. 43, 1--31 (1981; Zbl 0488.47021) Full Text: DOI
Chulaevskij, V. A. On perturbations of the Schrödinger operator with periodic potential. (Russian) Zbl 0487.34021 Usp. Mat. Nauk 36, No. 5(221), 203-204 (1981). MSC: 34L99 47A40 47E05 PDFBibTeX XMLCite \textit{V. A. Chulaevskij}, Usp. Mat. Nauk 36, No. 5(221), 203--204 (1981; Zbl 0487.34021)
Codeca, Paolo Sul comportamento quasi periodico del resto di una certa classe di funzioni fortemente moltiplicative. (Italian) Zbl 0486.42006 Ann. Univ. Ferrara, N. Ser., Sez. VII 27, 229-244 (1981). MSC: 42A16 42A75 11N99 11K55 44A35 PDFBibTeX XMLCite \textit{P. Codeca}, Ann. Univ. Ferrara, Nuova Ser., Sez. VII 27, 229--244 (1981; Zbl 0486.42006)
Avron, Joseph; Simon, Barry Almost periodic Schrödinger operators. I: Limit periodic potentials. (English) Zbl 0484.35069 Commun. Math. Phys. 82, 101-120 (1981). MSC: 35P25 35J10 81Q15 47A40 47B25 35B15 PDFBibTeX XMLCite \textit{J. Avron} and \textit{B. Simon}, Commun. Math. Phys. 82, 101--120 (1981; Zbl 0484.35069) Full Text: DOI
Derguzov, V. I. The spectrum of a plane periodic dielectrical waveguide. (Russian) Zbl 0484.35061 Probl. Mat. Anal. 8, 26-35 (1981). MSC: 35P05 47A10 78A50 PDFBibTeX XMLCite \textit{V. I. Derguzov}, Probl. Mat. Anal. 8, 26--35 (1981; Zbl 0484.35061)
Skriganov, M. M. The structure of the spectrum of the two-dimensional Schrödinger operator with periodic potential and some arithmetical properties of two- dimensional lattices. (Russian) Zbl 0483.47029 Tr. Mat. Inst. Steklova 158, 163-174 (1981). MSC: 47F05 47J10 35J10 35P05 PDFBibTeX XMLCite \textit{M. M. Skriganov}, Tr. Mat. Inst. Steklova 158, 163--174 (1981; Zbl 0483.47029)
Guillemin, Victor; Melrose, Richard A cohomological invariant of discrete dynamical systems. (English) Zbl 0482.58032 E. B. Christoffel: the influence of his work on mathematics and the physical sciences, int. Symp., Aachen 1979, 672-679 (1981). MSC: 58J50 58J32 53C15 37J99 PDFBibTeX XML
Davis, Donald M.; Mahowald, Mark \(v_ 1-\) and \(v_ 2-\)periodicity in stable homotopy theory. (English) Zbl 0481.55008 Am. J. Math. 103, 615-659 (1981). MSC: 55Q10 55Q45 55Q35 55N20 55P42 PDFBibTeX XMLCite \textit{D. M. Davis} and \textit{M. Mahowald}, Am. J. Math. 103, 615--659 (1981; Zbl 0481.55008) Full Text: DOI
Mahowald, Mark The primary \(v_ 2-\)periodic family. (English) Zbl 0479.55009 Math. Z. 177, 381-393 (1981). MSC: 55Q10 55P42 55Q45 PDFBibTeX XMLCite \textit{M. Mahowald}, Math. Z. 177, 381--393 (1981; Zbl 0479.55009) Full Text: DOI EuDML
Fischer, Alexander Existence of almost periodic solutions of systems of linear and quasilinear differential equations with time lag. (English) Zbl 0478.34046 Cas. Pěst. Mat. 106, 256-268 (1981). MSC: 34K99 34C27 34A34 34A45 34A30 PDFBibTeX XMLCite \textit{A. Fischer}, Čas. Pěstování Mat. 106, 256--268 (1981; Zbl 0478.34046) Full Text: EuDML
Moser, Jürgen Various aspects of integrable Hamiltonian systems. (Russian) Zbl 0477.58015 Usp. Mat. Nauk 36, No. 5(221), 109-151 (1981). MSC: 37J99 37J35 37K10 37A30 53A05 53C22 37D40 53D25 PDFBibTeX XMLCite \textit{J. Moser}, Usp. Mat. Nauk 36, No. 5(221), 109--151 (1981; Zbl 0477.58015)
Mahowald, Mark bo-resolutions. (English) Zbl 0476.55021 Pac. J. Math. 92, 365-383 (1981). MSC: 55T15 55S25 55Q45 55N15 55N20 55T25 55P42 PDFBibTeX XMLCite \textit{M. Mahowald}, Pac. J. Math. 92, 365--383 (1981; Zbl 0476.55021) Full Text: DOI
Shukhov, A. G. An entropy invariant of automorphisms of W*-algebras. (English. Russian original) Zbl 0469.46048 Funct. Anal. Appl. 15, 154-155 (1981); translation from Funkts. Anal. Prilozh. 15, No. 2, 94-95 (1981). MSC: 46L40 46L55 28D20 82B10 PDFBibTeX XMLCite \textit{A. G. Shukhov}, Funct. Anal. Appl. 15, 154--155 (1981; Zbl 0469.46048); translation from Funkts. Anal. Prilozh. 15, No. 2, 94--95 (1981) Full Text: DOI
Herczynski, Jan On the spectrum of the Schrödinger operator. (English) Zbl 0467.35073 Bull. Acad. Pol. Sci., Sér. Sci. Math. 29, 73-77 (1981). MSC: 35P15 35J10 35B15 35P20 46C99 PDFBibTeX XMLCite \textit{J. Herczynski}, Bull. Acad. Pol. Sci., Sér. Sci. Math. 29, 73--77 (1981; Zbl 0467.35073)
Levitan, B. M. Almost periodicity of finite-zone potentials. (Russian) Zbl 0458.35087 Izv. Akad. Nauk SSSR, Ser. Mat. 45, 291-320 (1981). MSC: 35Q99 35B15 34L99 76B25 PDFBibTeX XMLCite \textit{B. M. Levitan}, Izv. Akad. Nauk SSSR, Ser. Mat. 45, 291--320 (1981; Zbl 0458.35087)