All Stories

  1. Circle packing on spherical caps
  2. Circle packing in arbitrary domains
  3. Quantum particles in a suddenly accelerating potential
  4. Echoes of the hexagon: remnants of hexagonal packing inside regular polygons
  5. Circle packing in regular polygons
  6. An ubiquitous three-term recurrence relation
  7. Spectral sum rules for the Schrödinger equation
  8. On some conditionally solvable quantum-mechanical problems
  9. On the Hellmann-Feynman theorem in statistical mechanics
  10. Quantum particles in a moving potential
  11. Isospectral heterogeneous domains: A numerical study
  12. Weakly (and not so weakly) bound states of a relativistic particle in one dimension
  13. On the straightforward perturbation theory in classical mechanics
  14. Spectral algorithms for multiple scale localized eigenfunctions in infinitely long, slightly bent quantum waveguides
  15. Bound states in weakly deformed waveguides: numerical versus analytical results
  16. High order analysis of the limit cycle of the van der Pol oscillator
  17. Exact sum rules for quantum billiards of arbitrary shape
  18. BOUND STATES IN WEAKLY DEFORMED WAVEGUIDES: NUMERICAL VERSUS ANALYTICAL RESULTS
  19. A quantum-mechanical anharmonic oscillator with a most interesting spectrum
  20. Weakly Bound States in Heterogeneous Waveguides: A Calculation to Fourth Order
  21. Perturbation theory for short-range weakly-attractive potentials in one dimension
  22. Comment on “Thomson rings in a disk”
  23. Comment on: “Ground state energies from converging and diverging power series expansions”, Ann. Phys. 373 (2016) 456–469
  24. Weakly bound states in heterogeneous waveguides
  25. High order eigenvalues for the Helmholtz equation in complicated non-tensor domains through Richardson extrapolation of second order finite differences
  26. Heterogeneous systems in d dimensions: lower spectrum
  27. On the symmetry of three identical interacting particles in a one-dimensional box
  28. HETEROGENEOUS SYSTEMS IN DIMENSIONS: LOWER SPECTRUM
  29. Advanced Modern Physics
  30. Comment on: ‘PT-/non-PT-symmetric and non-Hermitian Hellmann potential: approximate bound and scattering states with any ℓ -values’
  31. Small-energy series for one-dimensional quantum-mechanical models with non-symmetric potentials
  32. Non-Hermitian oscillators withTdsymmetry
  33. Is space-time symmetry a suitable generalization of parity-time symmetry?
  34. Exact sum rules for inhomogeneous systems containing a zero mode
  35. Topics in Modern Physics
  36. Accurate calculation of the solutions to the Thomas–Fermi equations
  37. PT-symmetric strings
  38. Exact sum rules for inhomogeneous strings
  39. One cannot hear the density of a drum (and further aspects of isospectrality)
  40. Exact sum rules for inhomogeneous drums
  41. Introduction to Modern Physics
  42. Comment on ‘Numerical estimates of the spectrum for anharmonic PT symmetric potentials’
  43. Mathematical analysis of recent analytical approximations to the collapse of an empty spherical bubble
  44. Solution to the equations of the moment expansions
  45. Particle correlation from uncorrelated non Born–Oppenheimer SCF wavefunctions
  46. A perturbative approach to the spectral zeta functions of strings, drums, and quantum billiards
  47. Bound states for the quantum dipole moment in two dimensions
  48. Bound states in open-coupled asymmetrical waveguides and quantum wires
  49. Accurate calculation of the bound states of the quantum dipole problem in two dimensions
  50. Accurate calculation of the eigenvalues of non-uniform strings and membranes
  51. High-order connected moments expansion for the Rabi Hamiltonian
  52. Further analysis of the connected moments expansion
  53. The string of variable density: Further results
  54. Spectroscopy of annular drums and quantum rings: Perturbative and nonperturbative results
  55. Comment on ‘Coupled anharmonic oscillators: the Raileigh–Ritz approach versus the collocation approach’
  56. Collocation method for fractional quantum mechanics
  57. The string of variable density: Perturbative and non-perturbative results
  58. Can one hear the density of a drum? Weyl's law for inhomogeneous media
  59. Spectroscopy of drums and quantum billiards: Perturbative and nonperturbative results
  60. Collocation approach to the Helmholtz eigenvalue problem on multiply connected domains
  61. Variational collocation for systems of coupled anharmonic oscillators
  62. One-dimensional oscillator in a box
  63. Rayleigh–Ritz variation method and connected-moments expansions
  64. The virial theorem for nonlinear problems
  65. A new method for studying the vibration of non-homogeneous membranes
  66. Collocation on uniform grids
  67. Eigenvalues from power-series expansions: an alternative approach
  68. Solving the Helmholtz equation for membranes of arbitrary shape: numerical results
  69. Accurate calculation of the complex eigenvalues of the Schrödinger equation with an exponential potential
  70. Inversion of the perturbation series
  71. Variational collocation on finite intervals
  72. Alternative implementation of Padé approximants
  73. Dalgarno–Lewis perturbation theory for scattering states
  74. Gravitational lensing from compact bodies: Analytical results for strong and weak deflection limits
  75. Wronskian perturbation theory
  76. Comment on “Quantization of Friedmann-Robertson-Walker spacetimes in the presence of a negative cosmological constant and radiation”
  77. Alternative representation for nonlocal operators and path integrals
  78. Development of accurate solutions for a classical oscillator
  79. Convergence acceleration of series through a variational approach
  80. Analytical formulas for gravitational lensing: Higher order calculation
  81. Comment on an application of the asymptotic iteration method to a perturbed Coulomb model
  82. Analytical approximations to the spectra of quark–antiquark potentials
  83. A variational sinc collocation method for strong-coupling problems
  84. The IX Mexican Workshop on Particles and Fields
  85. Analytical formulas for gravitational lensing
  86. Dispersion relation of the nonlinear Klein-Gordon equation through a variational method
  87. Alternative perturbation approaches in classical mechanics
  88. One-loop integrals at finite temperature
  89. Asymptotic and exact series representations for the incomplete Gamma function
  90. A new approximation method for time-dependent problems in quantum mechanics
  91. Comparison of alternative improved perturbative methods for nonlinear oscillations
  92. Exact and approximate expressions for the period of anharmonic oscillators
  93. Improved Lindstedt–Poincaré method for the solution of nonlinear problems
  94. The period of a classical oscillator
  95. Systematic perturbation calculation of integrals with applications to physics
  96. Comparative study of quantum anharmonic potentials
  97. High order analysis of nonlinear periodic differential equations
  98. A new method for the solution of the Schrödinger equation
  99. COLOUR SUPERCONDUCTIVITY IN FINITE SYSTEMS
  100. Presenting a new method for the solution of nonlinear problems
  101. Pion dispersion relation at finite density and temperature
  102. Colour Superconductivity in Finite Systems
  103. Color superconductivity in finite systems
  104. Quark distribution functions in nuclear matter
  105. Contrasting and parity-violating asymmetries in nuclei
  106. Relativistic Hamiltonians in many-body theories