Lyapunov-Type Theorem of General Two-Dimensional Nonlinear Parameter-Varying FM Second Model

2012 ◽  
Vol 59 (7) ◽  
pp. 453-457 ◽  
Author(s):  
Qiao Zhu ◽  
Guang-Da Hu ◽  
Yi-Xin Yin
1966 ◽  
Vol 24 ◽  
pp. 3-5
Author(s):  
W. W. Morgan

1. The definition of “normal” stars in spectral classification changes with time; at the time of the publication of theYerkes Spectral Atlasthe term “normal” was applied to stars whose spectra could be fitted smoothly into a two-dimensional array. Thus, at that time, weak-lined spectra (RR Lyrae and HD 140283) would have been considered peculiar. At the present time we would tend to classify such spectra as “normal”—in a more complicated classification scheme which would have a parameter varying with metallic-line intensity within a specific spectral subdivision.


Author(s):  
Pankaj Jain ◽  
Chandrani Basu ◽  
Vivek Panwar

In this paper, we have introduced and studied two-dimensional [Formula: see text]-Mellin transform which extends the known results of two-dimensional [Formula: see text]-Mellin transform. We provide its several basic properties, the appropriate convolution, the inversion formula and the Parseval-type relations. Some applications of [Formula: see text]-Mellin transform have been pointed out in solving integral equations. Finally, a Titchmarsh-type theorem has been proved.


2019 ◽  
Vol 52 (28) ◽  
pp. 70-75 ◽  
Author(s):  
Antonio Sala ◽  
Carlos Ariño ◽  
Ruben Robles

Author(s):  
Boulaid Boulkroune ◽  
Sebastiaan V. Aalst ◽  
Erwin Rademakers ◽  
Koen Sannen ◽  
Norddin El Ghouti

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