Now showing items 1032-1051 of 1055

    • Valley-dependent Lorentz force and Aharonov-Bohm phase in strained graphene p-n junction 

      Prabhakar S.; Nepal R.; Melnik R.; Kovalev A.A. (PHYSICAL REVIEW B, 2019)
      Veselago lens focusing in graphene p-n junction is promising for realizations of new generation electron optics devices. However, the effect of the strain-induced Aharonov-Bohm interference in a p-n junction has not been ...
    • The value of continuity: Refined isogeometric analysis and fast direct solvers 

      Garcia D.; Pardo D.; Dalcin L.; Paszynski M.; Collier N.; Calo V.M. (Computer Methods in Applied Mechanics and Engineering, 2016-09-23)
      We propose the use of highly continuous finite element spaces interconnected with low continuity hyperplanes to maximize the performance of direct solvers. Starting from a highly continuous Isogeometric Analysis (IGA) ...
    • Variable coefficient Wolff-type inequalities and sharp local smoothing estimates for wave equations on manifolds 

      Beltran D.; Hickman J.; Sogge C. D. (2018)
      The sharp Wolff-type decoupling estimates of Bourgain--Demeter are extended to the variable coefficient setting. These results are applied to obtain new sharp local smoothing estimates for wave equations on compact Riemannian ...
    • Variable Lorentz estimate for nonlinear elliptic equations with partially regular nonlinearities 

      Liang S.; Zheng S. (Nonlinear Analysis, 2018-02-15)
      We prove global Calder\'on-Zygmund type estimate in Lorentz spaces for variable power of the gradients to weak solution of nonlinear elliptic equations in a non-smooth domain. We mainly assume that the nonlinearities are ...
    • Variational Formulations for Explicit Runge-Kutta Methods 

      Muñoz-Matute J.; Pardo D.; Calo V.M.; Alberdi E. (Finite Elements in Analysis and Design, 2019-08)
      Variational space-time formulations for partial di fferential equations have been of great interest in the last decades, among other things, because they allow to develop mesh-adaptive algorithms. Since it is known ...
    • Variational multiscale stabilization for compressible flow 

      Moragues Ginard M.; Vázquez M.; Houzeaux G. (Computer Methods in Applied Mechanics and Engineering, 2018)
      This paper presents a variational multiscale stabilization for the finite element numerical solution of the Euler and Navier-Stokes equations of compressible flow. All the components of the dual operator are considered in ...
    • Vector-valued extensions for fractional integrals of Laguerre expansions 

      Ciaurri Ó.; Roncal L. (Studia Math., 2018)
      We prove some vector-valued inequalities for fractional integrals defined for several orthonormal systems of Laguerre functions. On the one hand, we obtain weighted $L^p-L^q$ vector-valued extensions, in a multidimensional ...
    • Vector-valued operators, optimal weighted estimates and the $C_p$ condition 

      Cejas M.E.; Li K.; Pérez C.; Rivera-Ríos I.P. (Science China Mathematics, 2018-09)
      In this paper some new results concerning the $C_p$ classes introduced by Muckenhoupt and later extended by Sawyer, are provided. In particular we extend the result to the full range expected $p>0$, to the weak norm, to ...
    • Velocity and energy distributions in microcanonical ensembles of hard spheres 

      Scalas E.; Gabriel A.T.; Martin E.; Germano G. (Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2015-12-31)
      In a microcanonical ensemble (constant NVE, hard reflecting walls) and in a molecular dynamics ensemble (constant NVEPG, periodic boundary conditions) with a number N of smooth elastic hard spheres in a d-dimensional volume ...
    • Vortex filament equation for a regular polygon 

      De La Hoz F.; Vega L. (Nonlinearity, 2014-12-31)
      In this paper, we study the evolution of the vortex filament equation,$$ X_t = X_s \wedge X_{ss},$$with $X(s, 0)$ being a regular planar polygon. Using algebraic techniques, supported by full numerical simulations, we give ...
    • Vortex Filament Equation for some Regular Polygonal Curves 

      Kumar S. (2020-06-15)
      One of the most interesting phenomena in fluid literature is the occurrence and evolution of vortex filaments. Some of their examples in the real world are smoke rings, whirlpools, and tornadoes. For an ideal fluid, there ...
    • Weak and strong $A_p$-$A_\infty$ estimates for square functions and related operators 

      Hytönen T.; Li K. (Proceedings of the American Mathematical Society, 2017-07)
      We prove sharp weak and strong type weighted estimates for a class of dyadic operators that includes majorants of both standard singular integrals and square functions. Our main new result is the optimal bound $[w]_{A_p} ...
    • Weak observability estimates for 1-D wave equations with rough coefficients 

      Fanelli F.; Zuazua E. (Annales de l'Institut Henri Poincare. Annales: Analyse Non Lineaire/Nonlinear Analysis, 2014-12-31)
      In this paper we prove observability estimates for 1-dimensional wave equations with non-Lipschitz coefficients. For coefficients in the Zygmund class we prove a "classical" estimate, which extends the well-known observability ...
    • Wealth distribution and the Lorenz curve: a finitary approach 

      Scalas E.; Radivojevic T.; Garibaldi U. (Journal of Economic Interaction and Coordination, 2015-12-31)
      We use three stochastic games for the wealth of economic agents which may be at work in a real economy and we derive their statistical equilibrium distributions. Based on a heuristic argument, we assume that the expected ...
    • Weghted Lorentz and Lorentz-Morrey estimates to viscosity solutions of fully nonlinear elliptic equations 

      Junjie Zhang,Shenzhou Zheng (Complex Variables and Elliptic Equations, 2018)
      We prove a global weighted Lorentz and Lorentz-Morrey estimates of the viscosity solutions to the Dirichlet problem for fully nonlinear elliptic equation $F(D^{2}u,x)=f(x)$ defined in a bounded $C^{1,1}$ domain. The ...
    • The weighted independent domination problem: ILP model and algorithmic approaches 

      Davidson P.P.; Blum C.; Lozano J.A. (Lecture Notes in Computer Science, 2017-06-01)
      This work deals with the so-called weighted independent domination problem, which is an N P -hard combinatorial optimization problem in graphs. In contrast to previous theoretical work from the liter- ature, this paper ...
    • The Weighted Independent Domination Problem: ILP Model and Algorithmic Approaches 

      Pinacho Davidson P.; Blum C.; Lozano J.A. (European Journal of Operational Research, 2017-08-30)
      This work deals with the so-called weighted independent domination problem, which is an $NP$-hard combinatorial optimization problem in graphs. In contrast to previous work, this paper considers the problem from a ...
    • Weighted mixed weak-type inequalities for multilinear operators 

      Li K.; Ombrosi S.; Picardi B. (Studia Mathematica, 2017)
      In this paper we present a theorem that generalizes Sawyer's classic result about mixed weighted inequalities to the multilinear context. Let $\vec{w}=(w_1,...,w_m)$ and $\nu = w_1^\frac{1}{m}...w_m^\frac{1}{m}$, the main ...
    • Weighted norm inequalities for rough singular integral operators 

      Li K.; Pérez C.; Rivera-Ríos I.; Roncal L. (Journal of Geometric Analysis, 2018-08-17)
      In this paper we provide weighted estimates for rough operators, including rough homogeneous singular integrals $T_\Omega$ with $\Omega\in L^\infty(\mathbb{S}^{n-1})$ and the Bochner--Riesz multiplier at the critical index ...
    • Well-posedness in critical spaces for the system of compressible Navier-Stokes in larger spaces 

      Haspot B. (Journal of Differential Equations, 2011-12-31)
      This paper is dedicated to the study of viscous compressible barotropic fluids in dimension N≥2. We address the question of well-posedness for large data having critical Besov regularity. Our result improves the analysis ...