| 2016 | Semi-relativistic reflection and transmission coefficients for two spinless particles separated by a rectangular-shaped potential barrier
Commun. Theor. Phys. 66 389–395 (Accepted)
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| 2016 | Non-Relativistic Phase Shifts for Scattering on Generalized Radial Yukawa Potentials
Commun. Theor. Phys. 65 434–440 (Published)
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| 2015 | Two-Body Scattering in (1 + 1) Dimensions by a Semi-relativistic Formalism and a Hulth ?en Interaction Potential
Communications in theoretical physics journal 63 423--426 (Published)
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| 2015 | On Calculations of Legendre Functions and Associated Legendre Functions of the First Kind of Complex Degree
Commun. Theor. Phys. 64 9 (Published)
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| 2014 | A theoretical study of spin-angular behaviors of potential
scattering resonances
Physica Scripta 89 085401 (Published)
|
| 2013 | Equivalence of the empirical shifted Deng–Fan oscillator potential for diatomic molecules
J. Math. Chem. 51 227-238 (Published)
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| 2013 | Bohr-Sommerfeld quantization condition for Dirac states derived from an Ermakov-type invariant.
Journal of Mathematical Physics 54 052301 (Accepted)
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| 2012 | The Rotation-Vibration Spectrum of Diatomic Molecules with the Tietz-Hua Rotating Oscillator
International Journal of Quantum Chemistry 112 2701-2705 (Published)
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| 2012 | On relativistic shifts of negative-ion resonances
Eur. Phys. J. D 66 7 (Published)
|
| 2012 | Pseudospin Symmetry in the Relativistic Killingbeck Potential: Quasi-Exact Solution
Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences 67a 567-71 (Published)
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| 2012 | Coupled radial Schrödinger equations written as Dirac-type equations: application to an amplitude-phase approach
Journal of Physics A: Mathematical and Theoretical 45 135302 (Published)
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| 2012 | Approximate Analytical Solution of the Yukawa Potential with Arbitrary Angular Momenta
Chin. Phys. Lett 29 080302 (Published)
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| 2012 | SPIN AND PSEUDOSPIN SYMMETRIES IN RELATIVISTIC TRIGONOMETRIC PÖSCHL TELLER POTENTIAL WITH CENTRIFUGAL BARRIER
Int. J. Mod. Phys. E E 21 1250097 (Published)
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| 2011 | Amplitude-phase calculations of Regge poles obtained
from coupled radial Dirac equations
J. Phys. A: Math. Theor. 44 275305 (Published)
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| 2011 | Semiclassical aspects and supersymmetry of bound Dirac states for central pseudo-scalar potentials
Physica Scripta 84 025006 (Published)
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| 2010 | Dirac resonance energies for central potentials with different Lorentz-type potential couplings
Physica Scripta 81 035007 (Published)
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| 2008 | A new amplitude-phase method for analyzing
scattering solutions of the radial Dirac equation
Journal of Physics A: Mathematical and Theoretical 41 115304 (Published)
|
| 2006 | Multi-state complex angular momentum residues
J. Phys. A: Math. Gen. 39 11895 (Published)
|
| 2005 | Barrier transmission problem treated by amplitude-phase method
and expressed in terms of an invariant of the Ermakov-Lewis type
J. Phys. A: Math. Gen 38 235-243 (Published)
|
| 2005 | An amplitude-phase approach to calculating
Regge-pole positions and residues
J. Phys A. 38 5305-5313 (Published)
|
| 2005 | Improved amplitude-phase method for complex
angular momentum analysis
J. Phys. A: Math. Gen. 38 7363-7375 (Published)
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| 2005 | Generalization of the amplitude-phase S-matrix
formula for coupled scattering states
J. Phys. A: Math. Gen. 38 1007-1013 (Published)
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| 2004 | Scattering S-matrix derived from invariants of the Ermakov-Lewis type
J. Phys. A: Math. Gen. 37 L589 (Published)
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| 2002 | Note on invariants for uncoupled Ermakov systems
J. Phys. A: Math. Gen 35 4359-4362 (Published)
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| 2001 | Harmonic oscillator subject to parametric pulses: An amplitude (Milne) oscillator approach
J. Phys. A: Math. Gen 34 3497-3510. (Published)
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| 1998 | Higher-order narrow-tube quantization of quasi-energies
J. Phys. A: Math. Gen 31 2253-2268 (Published)
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| 1998 | The 'Emarkov-Lewis' invariants for coupled parametric oscillators
J. Phys. A: Math. Gen 31 L279-285 (Published)
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| 1996 | Monotonic stability.
Chaos, Solitons & Fractals 7 1441-1445 (Published)
|
| 1996 | On transverse stability of synchronized chaotic attractors.
Chaos solitions and fractals 7 1569-1581 (Published)
|
| 1996 | Time-dependent normal form hamiltonian for dynamical equilibra.
J. Phys. A: Math. Gen. 29 3707-3722 (Published)
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| 1996 | Nonlinear Phase- integral Approximations of stationary waves in nonhomogeneous systems.
J. Phys 30 697-710 (Published)
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| 1995 | Chaos-Hyperchaos transition.
Chaos, Solitons & Fractals 5 2003-2011 (Published)
|
| 1995 | Semiclassical narrow-tube quantizations of time-periodic Hamiltonian oscillators.
J. Phys. A: Math. Gen. 27 7475-7490 (Published)
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| 1995 | Tanverse monotic stability of chaotic attractors.
SPIE proceedings. Chaotic circuits for communication 2612 37-47 (Published)
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| 1995 | Stability transitions of exact periodic responses in undamped Helmholtz and Duffing oscillators.
J. Sound. Vibr. 182 209-220 (Published)
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| 1994 | Complex angular momentum approach to black hole scattering.
Class. Quantum Grav. 11 2991-3001 (Published)
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| 1994 | Narrow- tube approximation of semiclassical quasi energies: - application to the weakly non-linear Duffing oscillators.
J. Phys. A: Math. Gen. 27 5673-5684 (Published)
|
| 1994 | Nonperturebative stability analysis of periodic responses in driven nonlinear oscillators.
J. Sound. Vibr. (Published)
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| 1994 | On the Regge-pole description of rainbow scattering by means of the phase-integral method.
Phys. Rev 50 1420-1429 (Published)
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| 1994 | Semiclassical energy quantization of anharmonic potential motion - complex trajectory contributions vs. Higher-order corrections
J. Phys. A: Math. Gen 27 4011-4020 (Published)
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| 1993 | Complex angular momentum theory of molecular collisions - new phase rules for rotationally inelastic diffraction scattering in atom-homonuclear diatomic molecule collisions
J. Chem. Phys. 98 2947-2961 (Published)
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| 1993 | Exact quenching phenomenon of undamped, driven Helmholtz and Duffing oscillators.
J. Sound. Vibr. 161 203-211 (Published)
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| 1992 | In theory and control of dynamical systems - application to system in biology,
World Scientific, Singapore 231-241 (Published)
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Study at KTH
