Vol. 51 No. 4 (2011)

Articles

• Rational Approximation to the Solutions of Two-Point Boundary Value Problems

  P. Amore, F. M. Fernández

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• Coquaternionic Quantum Dynamics for Two-level Systems

  D. C. Brody, E. M. Graefe

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• Perturbation Theory for PT-Symmetric Sinusoidal Optical Lattices at the Symmetry-Breaking Threshold

  H. F. Jones

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• Two Remarks to Bifullness of Centers of Archimedean Atomic Lattice Effect Algebras

  M. Kalina

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• Singularities in Structural Optimization of the Ziegler Pendulum

  O. N. Kirillov

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• Erlangen Programme at Large 3.2 Ladder Operators in Hypercomplex Mechanics

  V. V. Kisil

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• Dynamical Symmetry Breaking in RN Quantum Gravity

  A. T. Kotvytskiy, D. V. Kruchkov

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• Ito-Sadahiro numbers vs. Parry numbers

  Z. Masáková, E. Pelantová

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• More on PT-Symmetry in (Generalized) Effect Algebras and Partial Groups

  J. Paseka, J. Janda

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• Extensions of Effect Algebra Operations

  Z. Riečanová, M. Zajac

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• Effect Algebras of Positive Self-adjoint Operators Densely Defined on Hilbert Spaces

  Z. Riečanová

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• Path Integrals for (Complex) Classical and Quantum Mechanics

  R. J. Rivers

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• Polynomial Solutions of the Heun Equation

  B. Shapiro, M. Tater

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• Exceptional Points for Nonlinear Schroedinger Equations Describing Bose-Einstein Condensates of Ultracold Atomic Gases

  G. Wunner, H. Cartarius, P. Koeberle, J. Main, S. Rau

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• The Horizons of Observability in PT-symmetric Four-site Quantum Lattices

  M. Znojil

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