output
20022011
most citedSolar System constraints to general f(R) gravity

347 citations

researchers with a paper here
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Showing 2011Show all

9 papers · 1 filter

gr-qc2011★ 32 cited

How does gravity save or kill Q-balls?

Takashi Tamaki, Nobuyuki Sakai

We explore stability of gravitating Q-balls with potential via catastrophe theory, as an extension of our previous work on Q-balls with…

gr-qc2011★ 33 cited

Unified picture of Q-balls and boson stars via catastrophe theory

Takashi Tamaki, Nobuyuki Sakai

We make an analysis of Q-balls and boson stars using catastrophe theory, as an extension of the previous work on Q-balls in flat spacetime. We adopt the potential $V_3(ϕ)={m^2\over…

math.AC2011

F-signature of graded Gorenstein rings

Akiyoshi Sannai, Kei-ichi Watanabe

For a commutative ring , the -signature was defined by Huneke and Leuschke \cite{H-L}. It is an invariant that measures the order of the rank of the free direct summand of $R…

math.GR2011★ 4 cited

Genus of numerical semigroups generated by three elements

Hirokatsu Nari, Takahiro Numata, Kei-ichi Watanabe

In this paper we study numerical semigroups generated by three elements. We give a characterization of pseudo-symmetric numerical semigroups. Also, we will give a simple algorithm…

hep-th2011★ 20 cited

Remark on the subtractive renormalization of quadratically divergent scalar mass

Kazuo Fujikawa

The quadratically divergent scalar mass is subtractively renormalized unlike other divergences which are multiplicatively renormalized. We re-examine some technical aspects of the…

astro-ph.CO2011★ 14 cited

Runaway Domain Wall and Space-time Varying alpha

Takeshi Chiba, Masahide Yamaguchi

Recently spatial as well as temporal variations of the fine structure constant alpha have been reported. We show that a "runaway domain wall", which arises for the scalar field pot…