in the present paper we introduce and study the notion of pairwise weakly lindelof bitopological spaces and obtain some results. further, we also study the pairwise weakly lindelof subspaces and subsets, and investigate some of their properties. it was proved that a pairwise weakly lindelof property is not a hereditary property.

Adrian Stoica, “Toward Evolvable Hardware Chips: Experiments with a Programmable Transistor Array,” IEEE, Apr. 1999, pp. 1-7.* Zebulum et al, “Eiolvable Hardware: on the Automatic Synthesis of Analog Control Systems,” IEEE, Mar. 2000, pp. 451-463.* August0 et al, “Analog Fault Diagnostic in Nonlinear DC Circuits with an Evolutionaly Algorithm,” IEEE, Jul. 2000, pp. 609-616.* Stoica et al, “Evol...

In this present paper, by utilizing ij−δ semi open sets, we introduce ij−∧δ, ij−∨δ, g− ij−∧δ, g− ij−∨δ sets and investigate some of their properties in bitopological spaces. Also, we present and study the notions of ij − T∨sδ space, ij−∧δ continuous, ij−∧δ irresolute, ij−∧δ open and ij−∧δ homeomorphism functions.

With the discovery of some hidden-charm pentaquark resonances by LHCb Collaboration, investigations states containing heavy quarks have aroused interest theorists. We study herein $qqq\bar{q}Q$ ($q = u$ or $d$, $Q=c$ $b$) system, in framework chiral quark model. In consequence, charmed and bottomed pentaquarks are considered to exist five-body dynamical calculations. charm sector, $\Sigma_c\pi(...

S s p s ij ij ijl ijl ij jl jl i M l j l D X D D f q β ∈ ≠ =   + − +       ∑ ∑ ∑ () () () () () () 1 1 () 1 2 4 3 2 4 3 s p s s p p iz iz iz iz ij iz zj iz ij iz zj iz ij iz zj s p S s s p p iz iz iz i z N l iz ij izl iz zj izl iz ij izl iz zj izl iz ij izl iz zj izl l w x w x w x w x w x w x T w x C w x C w x C w x C w x C w x C λ λ λ λ λ λ α () 2 1 0.5 s p s ij ij ijl ijl ij i M l j T...

Let $G$ be a strongly connected digraph with vertex set $\{v_1, v_2, \dots, v_n\}$. Denote by $D_{ij}$ the distance between vertices $v_i$ and $v_j$ in $G$. Two variant versions of matrix were proposed Yan Yeh (Adv. Appl. Math.), Bapat et al. (Linear Algebra Appl.) independently, one is $q$-distance matrix, other exponential matrix. Given nonzero indeterminate $q$, $\mathscr{D}_G=(\mathscr{D}_{...

CrystEngComm This journal is © The Royal Society of Chemistry 2015 Department of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, UK. E-mail: [email protected] b Laboratory of Inorganic and General Chemistry, Department of Chemistry, University of Ioannina, 451 10 Ioannina, Greece. E-mail: [email protected] c Departamento de Quimica Inorganica, Universitat de Barc...

We perform a systemical investigation of the low-lying doubly-heavy dibaryon systems with strange $S=0$, isospin $I=0$, $1$, $2$ and angular momentum $J=0$, $2$, $3$ in quark delocalization color screening model. find effect channel-coupling cannot be neglected study multi-quark systems. Due to heavy flavor symmetry, results doubly-charm doubly-bottom are similar each other. Both them have thre...