Two-dimensional spin-orbital magnets with strong exchange frustration have recently been predicted to facilitate the realization of a quantum critical point in Gross-Neveu-SO(3) universality class. In contrast previously known Gross-Neveu-type classes, this separates Dirac semimetal and long-range-ordered phase, which fermion spectrum is only partially gapped out. Here, we characterize behavior...

Abstract The physical state of mesons can be mixed using the unitary matrix. decay processes \omega \rightarrow \pi^{+}\pi^{-} and \phi originate from isospin symmetry breaking. \rho-\omega , \rho-\phi \omega-\phi interferences lead to a resonance contribution produce strong phases. CP violation is considered breaking due new phase first order. enhanced greatly fo...

μ1(T) measures the maximum turning capability of T . A vector f for which the inf in (1.1) is attained is called an antieigenvector of T . Cosine of T has important applications in pure operator theory as well as numerical analysis (see [3, 4, 6]). In [7, 8, 11], we have computed the first antieigenvalue of normal accretive operators in terms of eigenvalues of these operators. In [12], we compu...

Let X be a ball Banach function space on ${\mathbb R}^{n}$ . Ω Lipschitz the unit sphere of , which is homogeneous degree zero and has mean value zero, let TΩ convolutional singular integral operator with kernel Ω(⋅)/|⋅|n. In this article, under assumption that Hardy–Littlewood maximal ${\mathscr{M}}$ bounded both its associated space, authors prove commutator [b, TΩ] compact if only $b\in \tex...

Precision studies at electron-positron colliders with center-of-mass energies in the charm-tau region and below have strongly contributed to our understanding of light-meson interactions low energies. We focus on processes involving two or three light mesons invariant masses nucleon-antinucleon threshold. A prominent role is given nine lightest pseudoscalar (pions, kaons, $\eta$, $\eta'$) narro...

let $(m^{2n},g)$ be a real hypersurface with recurrent shapeoperator and tangent to the structure vector field $xi$ of the sasakian space form$widetilde{m}(c)$. we show that if the shape operator $a$ of $m$ isrecurrent then it is parallel. moreover, we show that $m$is locally a product of two constant $phi-$sectional curvaturespaces.

Let L = Δ − ⟨ ∇ ϕ , · ⟩ $L=\Delta -\langle \nabla \phi \cdot \rangle$ be a symmetric diffusion operator with an invariant measure μ ( d x ) e m $\mu (\mathrm{d}x)=e^{-\phi (x)}\mathfrak {m} (\mathrm{d}x)$ on complete non-compact smooth Riemannian manifold M g $(M,g)$ its volume element vol $\mathfrak =\text{\rm vol}_g$ and ∈ C 2 $\phi \in C^2(M)$ potential function. In this paper, we prove Lapl...

OBJECTIVE To examine the acceptability and feasibility of mobile health (mHealth)/short message service (SMS) and community-based directly observed antiretroviral therapy (cDOT) as interventions to improve antiretroviral therapy (ART) adherence for preventing mother-to-child human immunodeficiency virus (HIV) transmission (PMTCT). DESIGN AND METHODS A mixed-method approach was used. Two quali...

In a recent work PRD 106, L021501 (2022), new geometric approach is proposed to obtain the photon sphere (circular orbit) and black hole shadow radius. this approach, spheres radius are determined using geodesic curvature Gaussian in optical geometry of spacetimes. However, calculations (2022) only restricted subclass static spherically symmetric holes with spacetime metric $g_{tt} \cdot g_{rr}...

We investigate the renormalization group theory of generalized multi-vertex sine-Gordon model by employing dimensional regularization method and also Wilson method. The vertex interaction is given $\cos(k_j\cdot \phi)$ where $k_j$ ($j=1,2,\cdots,M$) are momentum vectors $\phi$ an $N$-component scalar field. beta functions calculated for with multi cosine interactions. second-order correction in...