Ultralight axions and dark photons are well-motivated matter candidates. Inside the plasma, once mass of ultralight candidates equals plasma frequency, they can resonantly convert into electromagnetic waves, due to coupling between particles standard model photons. The converted waves monochromatic. In this article, we review development using radio detectors search for conversions in solar cor...

We show the properties of the blowup limits of Kähler Ricci flow solutions on Fano surfaces if Riemannian curvature is unbounded. As an application, on every toric Fano surface, we prove that Kähler Ricci flow converges to a Kähler Ricci soliton metric if the initial metric has toric symmetry. Therefore we give a new Ricci flow proof of existence of Kähler Ricci soliton metrics on toric surfaces.

This paper compares two different local surface shape description methods. The general goal of surface shape description methods is to classify different surface shapes from range data. One well-known method to classify patches of various shapes is the HK classification space [2, 1, 10]. Another way to classify patches is the SC method introduced by Koenderink [9]. This paper presents several e...

The class of well-filtered spaces is one the important topological in domain theory. Recently, existence well-filterification T0-spaces has been established. In this paper, we introduce definition wf-rank and prove that for any ordinal ?, there exists a T0-space whose equals ?.

Varieties with log terminal and log canonical singularities are considered in the Minimal Model Program, see [KMM] for introduction. In [SH2] it was conjectured that many of the interesting sets, associated with these varieties have something in common: they satisfy the ascending chain condition, which means that every increasing chain of elements terminates (in [SH2] it was called the upper se...

We establish the dichotomy property of [7] for multi-conclusion stable canonical rules of [1]. This yields an alternative proof of existence of bases of admissible rules for such well-known systems as IPC, S4, and K4.

In [I] we introduced the notion of transfer from a group over a local field to an associated endoscopic group, but did not prove its existence, nor do we do so in the present paper. Nonetheless we carry out what is probably an unavoidable step in any proof of existence: reduction to a local statement at the identity in the centralizer of a semisimple element, a favorite procedure of Harish Chan...

In this note, we prove the existence of Nash equilibria in infinite normal form games with compact sets of strategies and continuous payoffs by constructing Nash mappings. © 2010 Elsevier Ltd. All rights reserved.

Abstract Existence of strong Kähler with torsion metrics, shortly SKT on complex manifolds has been shown to be unstable under small deformations. We find necessary conditions which the property being is stable for a smooth curve Hermitian metrics { ω t } equals fixed metric = 0, along differentiable family M .