نتایج جستجو برای: weakly j
تعداد نتایج: 311614 فیلتر نتایج به سال:
In this paper, we have proposed some new upper bounds for the largest Z-eigenvalue of an irreducible weakly symmetric and nonnegative tensor, which improve the known upper bounds obtained in Chang et al. (Linear Algebra Appl 438:4166-4182, 2013), Song and Qi (SIAM J Matrix Anal Appl 34:1581-1595, 2013), He and Huang (Appl Math Lett 38:110-114, 2014), Li et al. (J Comput Anal Appl 483:182-199, 2...
We employ the Schwinger boson mean-field approach to study the effects of arbitrary frustrated bonds and plaquettes (formed from four frustrated bonds) in two-dimensional ferro-and antiferromagnets on the spin-wave spectrum and the correlation length at finite temperatures. We distinguish between strongly frustrated bonds (plaquettes), when the frustrated coupling J ′ exceeds the spin canting t...
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.
1 Background In the previous lecture we saw a PTAS for the problem PkM 2 i. Recall that M i is the completion time of machine i. In this lecture we present a PTAS for the problem Pk P c j w j , due to Skutella and Woeginger (1999). Some known results for related problems: 1k P w j c j-can be solved in polynomial time using Smith's Ratio Rule. Pk P c j-can be solved in polynomial time using SPT ...
Zero-point quantum fluctuations of a N\'eel order can produce effective interactions between quasi-orphan spins weakly coupled to the lattice. On $\sqrt{3}\ifmmode\times\else\texttimes\fi{}\sqrt{3}$-distorted triangular lattice, this phenomenon leads correlated partially disordered phase. In article, we use matrix product state methods study similar model: $S=1/2$ stuffed square Tuning exchange...
A search for J/ψ radiative decay to weakly interacting neutral final states was performed using the CLEO-c detector at CESR. J/ψ events were selected by observing the hadronic decay ψ(2S) → π+π−J/ψ. A total of 3.7 × 106 J/ψ events was used to study the decay J/ψ → γ + X, where X is a narrow state that is invisible to the detector. No significant signal was observed and upper limits on the branc...
We show that algebraically shifting a pair of simplicial complexes weakly increases their relative homology Betti numbers in every dimension. More precisely, let ∆(K) denote the algebraically shifted complex of simplicial complex K, and let β j (K, L) = dim k H j (K, L; k) be the dimension of the jth reduced relative homology group over a field k of a pair of simplicial complexes L ⊆ K. Then β ...
If u ∈ H(M,N) is a weakly J-holomorphic map from a compact without boundary almost hermitian manifold (M, j, g) into another compact without boundary almost hermitian manifold (N, J, h). Then it is smooth near any point x where Du has vanishing Morrey norm M2,2m−2, with 2m =dim(M). Hence H2m−2measure of the singular set for a stationary J-holomorphic map is zero. Blow-up analysis and the energy...
We prove that a weakly convex almost Kähler 4-manifold contains a compact, non-constant J-holomorphic curve if the corresponding monopole invariant is not zero and if the corresponding line bundle is non-trivial.
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