51 citations · 237 across the 37 of their papers we have counts for
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Space-time breather solution for nonlinear Klein-Gordon equations
Yasuhiro Takei, Yoritaka Iwata
Klein-Gordon equations describe the dynamics of waves/particles in sub-atomic scales. For nonlinear Klein-Gordon equations, their breather solutions are usually known as time perio…
Numerical scheme based on the spectral method for calculating nonlinear hyperbolic evolution equations
Yoritaka Iwata, Yasuhiro Takei
High-precision numerical scheme for nonlinear hyperbolic evolution equations is proposed based on the spectral method. The detail discretization processes are discussed in case of…
Abstract formulation of the Miura transform
Yoritaka Iwata
Miura transform is known as the transformation between Korteweg de-Vries equation and modified Korteweg de-Vries equation. Its formal similarity to the Cole-Hopf transform has been…
Solitons in nuclear time-dependent density functional theory
Yoritaka Iwata
The soliton existence in sub-atomic many-nucleon systems is discussed. In many nucleon dynamics represented by the nuclear time-dependent density functional formalism, much attenti…
Operator topology for logarithmic infinitesimal generators
Yoritaka Iwata
Generally-unbounded infinitesimal generators are studied in the context of operator topology. Beginning with the definition of seminorm, the concept of locally convex topological v…
Nuclear matrix elements for mechanism of of Ca in nuclear shell-model: Closure versus nonclosure approach
Shahariar Sarkar, Y. Iwata, P. K. Raina
The and mechanisms of neutrinoless double beta decay () occur with light neutrino exchange via , and mediation, respectively. In the present s…