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Variational Minimizing Solutions for Planar Circular Restricted 3-Body Problems
Restricted 3–body problems “8”type loops Variational methods
2011/9/25
We use some inequalities to study planar Newtonian circular restricted 3- body problems with two equal primaries, we prove that the minimizer of the Lagrangian action on “8” type symmetric loop spaces...
New Periodic Solutions for Planar 5–Body and 7-Body Problems
5-body and 7-body problems winding numbers variational minimizers
2011/9/25
For planar Newtonian N + 2-body (N=3,5)problems with some mass ratios, we prove the existence of new non-collision periodic solutions such that N bodies with equal masses move on one loop and the othe...
A modified star formation law as a solution to open problems in galaxy evolution
galaxies: evolution – galaxies: formation – galaxies: stellar content –galaxies: haloes
2011/10/13
In order to reproduce the low mass end of the stellar mass function, most current models of galaxy evolution invoke very efficient supernova feedback. This solution seems to suffer from several shortc...
Keynote Address: Outstanding Problems in Solar Physics
Solar neutrinos solar interior helioseismology solar magnetic field solar corona cycle flares magnetohydrodynamics (MHD) MHD oscillations waves coronal heating dimming selforganized criticality particle acceleration coronal mass ejections (CME)
2010/9/15
Celebrating the diamond jubilee of the Physics Research Laboratory (PRL) in Ahmedabad, India, we look back over the last six decades in solar physics and contemplate on the ten outstanding problems (o...
Closed Newton-Cotes trigonometrically-fitted formulae for long-time integration of orbital problems
trigonometrically-fitted formulae Newton-Cotes orbital problems
2009/6/30
Closed Newton-Cotes trigonometrically-fitted formulae for long-time integration of orbital problems。
The modified restricted three body problems。
Modification of Field Equation and Natural Solution to cosmological problems
Background Coordinates Standard coordinates
2015/5/29
The present article has systematically solved the problem of galaxy formation and some significant cosmological puzzles. First a mistake with Einstein’s equation of gravitational field is corrected, n...
An Efficient Monte Carlo Algorithm for a Restricted Class of Scattering Problems in Radiation Transfer
Monte Carlo Algorithm Scattering Problems Radiation Transfer
2009/6/9
An Efficient Monte Carlo Algorithm for a Restricted Class of Scattering Problems in Radiation Transfer。
Asteroseismology of δ Scuti Stars：Problems and Prospects
δ Scuti stars pre-main sequence stars
2009/5/12
We briefly outline the state-of-the-art seismology of δ Scuti
stars from a theoretical point of view: why is it so difficult a task? The recent
theoretical advances in the field that these difficult...
Celebrating the diamond jubilee of the Physics Research
Laboratory (PRL) in Ahmedabad, India, we look back over the last six
decades in solar physics and contemplate on the ten outstanding problems
...
The two-body problem in central fields (reducible to a central-force
problem) models a lot of concrete astronomical situations. The corresponding vector
fields (in Cartesian and polar coordinates, e...
ON RADIATIVE TRANSFER PROBLEMS AND THEIR SOLUTION Invited Review
Methods numerical - Radiative transfer - Stars atmospheres
2009/3/5
A survey of the main stages in the solution of radiative transfer
(RT) problems is given with special emphasis on recent approaches and powerful
numerical techniques developed to solve non-LTE RT pr...
DISCRETE APPROXIMATIONS FOR SINGULARLY PERTURBED BOUNDARY VALUE PROBLEMS WITH PARABOLIC LAYERS, II
2007/12/11
In his series of three papers we study
singularly perturbed (SP)
boundary value problems for equations of elliptic
and parabolic type.
For small values of the perturbation parameter
parabolic bou...
DISCRETE APPROXIMATIONS FOR SINGULARLY PERTURBED BOUNDARY VALUE PROBLEMS WITH PARABOLIC LAYERS, III
2007/12/11
In this series of three papers we study
singularly perturbed (SP)
boundary value problems for equations of elliptic
and parabolic type.
For small values of the perturbation parameter
parabolic bo...