Abstract Let $u_{X}^{t}$ be a unipotent flow on $X=\mathrm {SO}(n,1)/\Gamma $ , $u_{Y}^{t}$ $Y=G/\Gamma ^{\prime }$ . $\tilde {u}_{X}^{t}$ {u}_{Y}^{t}$ time changes of respectively. We show the disjointness (in sense Furstenberg) between and (or ) in certain situations. Our method refines works Ratner’s shearing argument. The also extends recent work Dong, Kanigowski, Wei [Rigidity joinings for...

Contemporary imaging air Cherenkov telescopes (IACT) for ground-based very high energy (VHE) gamma-ray astronomy have prime focus optical design. Typically these telescopes have a (2−4) wide field of view (FoV). They use F/0.7-F/1.2 optics and provide (3−10) ′ resolution in the FoV. Generally, a well designed telescope that includes more than one optical element will offer some advantages not a...

let $g$ be a finite group and $pi(g)$ be the set of all the prime‎ ‎divisors of $|g|$‎. ‎the prime graph of $g$ is a simple graph‎ ‎$gamma(g)$ whose vertex set is $pi(g)$ and two distinct vertices‎ ‎$p$ and $q$ are joined by an edge if and only if $g$ has an‎ ‎element of order $pq$‎, ‎and in this case we will write $psim q$‎. ‎the degree of $p$ is the number of vertices adjacent to $p$ and is‎ ...

We consider the form factors for radiative semileptonic decays $\bar{B}(v) \rightarrow D^{(*)}(v') \ell {\bar \nu}_\ell \gamma$ in kinematic region where photon momentum, $k$, is small enough that heavy quark symmetry (HQS) can be applied without radiated changing velocity (i.e., $v^{(\prime)} \cdot k < m_{(b,c)}$). find HQS remarkably powerful, leaving only four new undetermined at leading ord...

The aim of this study was to examine the efficacy of in ovo prime-boost vaccination against infectious bursal disease virus (IBDV) using a DNA vaccine to prime in ovo followed by a killed-vaccine boost post hatching. In addition, the adjuvant effects of plasmid-encoded chicken interleukin-2 and chicken interferon-gamma were tested in conjunction with the vaccine. A plasmid DNA vaccine (pcDNA-VP...

We use a recently developed interpretable and unsupervised machine-learning method, the tensorial kernel support vector machine (TK-SVM), to investigate low-temperature classical phase diagram of generalized Heisenberg-Kitaev-$\Gamma$ ($J$-$K$-$\Gamma$) model on honeycomb lattice. Aside from reproducing phases reported by previous quantum studies, our finds hitherto missed nested zigzag-stripy ...