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- The University of TokyoJP104 papers
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187 papers
Quantitative evaluations of stability and convergence for solutions of semilinear Klein--Gordon equation
Takuya Tsuchiya, Makoto Nakamura
We perform some simulations of the semilinear Klein--Gordon equation with a power-law nonlinear term and propose each of the quantitative evaluation methods for the stability and c…
Freeze-in and freeze-out production of Higgs portal Majorana fermionic dark matter during and after reheating
Rajesh Mondal, Sourav Mondal, Toshifumi Yamada
In this paper, we investigate the production of Majorana fermionic dark matter (DM) via the Higgs portal, considering both freeze-in and freeze-out mechanisms during and after the…
Stochastic quantization with discrete fictitious time
Daisuke Kadoh, Mitsuhiro Kato, Makoto Sakamoto +1
We present a new approach to stochastic quantization à la Parisi-Wu with a discrete fictitious time. The noise average is modified by weights, which results in the equivalence in t…
On the linear independence of -adic polygamma values
Makoto Kawashima, Anthony Poëls
In this article, we present a new linear independence criterion for values of the -adic polygamma functions defined by J.~Diamond. As an application, we obtain the linear indepe…
The ring of Weyl invariant Jacobi forms
Kazuhiro Sakai
We prove that the ring of Weyl invariant weak Jacobi forms is isomorphic to that of joint covariants of a binary sextic and a binary quartic form. The ring is therefore finit…
Photoabsorption cross section in the low- and low- domain, and DGLAP evolution
G. R. Boroun, M. Kuroda, Dieter Schildknecht
The behavior of the gluon distribution of the proton in the low-, low- domain of deep inelastic electron-proton scattering (DIS) is being investigated. By considering two-g…