1,320 research outputs found

    Some Paranormed Difference Sequence Spaces of Order mm Derived by Generalized Means and Compact Operators

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    We have introduced a new sequence space l(r,s,t,p;Δ(m))l(r, s, t, p ;\Delta^{(m)}) combining by using generalized means and difference operator of order mm. We have shown that the space l(r,s,t,p;Δ(m))l(r, s, t, p ;\Delta^{(m)}) is complete under some suitable paranorm and it has Schauder basis. Furthermore, the α\alpha-, β\beta-, γ\gamma- duals of this space is computed and also obtained necessary and sufficient conditions for some matrix transformations from l(r,s,t,p;Δ(m))l(r, s, t, p; \Delta^{(m)}) to l∞,l1l_{\infty}, l_1. Finally, we obtained some identities or estimates for the operator norms and the Hausdorff measure of noncompactness of some matrix operators on the BK space lp(r,s,t;Δ(m))l_{p}(r, s, t ;\Delta^{(m)}) by applying the Hausdorff measure of noncompactness.Comment: Please withdraw this paper as there are some logical gap in some results. 20 pages. arXiv admin note: substantial text overlap with arXiv:1307.5883, arXiv:1307.5817, arXiv:1307.588

    Relating transverse structure of various parton distributions

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    We present the results of T-even TMDs in a light front quark-diquark model of nucleons with the wave functions constructed from the soft-wall AdS/QCD prediction. The relations amongst TMDs are discussed. The p⊥p_\perp dependence of the TMDs are compared with the tt-dependence of the GPDs. AdS/QCD wave function provides an explanation behind the approximate xx and p⊥p_\perp factorization observed in lattice TMD calculations.Comment: 11 pages, 8 figures, modified extensively, added new results and discusssion

    Dynamic phase transition in the conversion of B-DNA to Z-DNA

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    The long time dynamics of the conformational transition from B-DNA to Z-DNA is shown to undergo a dynamic phase transition. We obtained the dynamic phase diagram for the stability of the front separating B and Z. The instability in this front results in two split fronts moving with different velocities. Hence, depending on the system parameters a denatured state may develop dynamically eventhough it is thermodynamically forbidden. This resolves the current controversies on the transition mechanism of the B-DNA to Z-DNA.Comment: 5 pages, 4 figures. New version with correction of typos, new references, minor modifications in Fig 2, 3. To appear in EP

    TYPE II DNA: when the interfacial energy becomes negative

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    An important step in transcription of a DNA base sequence to a protein is the initiation from the exact starting point, called promoter region. We propose a physical mechanism for identification of the promoter region, which relies on a new classification of DNAs into two types, Type-I and Type-II, like superconductors, depending on the sign of the energy of the interface separating the zipped and the unzipped phases. This is determined by the energies of helical ordering and stretching over two independent length scales. The negative interfacial energy in Type II DNA leads to domains of helically ordered state separated by defect regions, or blobs, enclosed by the interfaces. The defect blobs, pinned by non-coding promoter regions, would be physically distinct from all other types of bubbles. We also show that the order of the melting transition under a force is different for Type I and Type II.Comment: 4 pages, 2 figures, Eq.(4) corrected in 4th versio
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