426 research outputs found

    VISITOR PREFERENCES AND VALUES FOR WATER-BASED RECREATION: A CASE STUDY OF THE OCALA NATIONAL FOREST

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    We used the open-ended contingent valuation method to elicit willingnes to pay (WTP) for day visitors and extended visitors on the Ocala National Forest (ONF), Florida. A Tobit model specification was applied to account for the issues involved with censored WTP bids. The results reveal that visitors would pay more for improved recreational facilities at the ONF. In particular, our estimates show that visitors would pay 1millionforbasicfacilities,1 million for basic facilities, 1.9 million for moderate improvements, and $2.5 million for more improvements.contingent valuation, Tobit analysis, water-based recreation, Resource /Energy Economics and Policy, Q23, Q26,

    The mixed problem in L^p for some two-dimensional Lipschitz domains

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    We consider the mixed problem for the Laplace operator in a class of Lipschitz graph domains in two dimensions with Lipschitz constant at most 1. The boundary of the domain is decomposed into two disjoint sets D and N. We suppose the Dirichlet data, f_D has one derivative in L^p(D) of the boundary and the Neumann data is in L^p(N). We find conditions on the domain and the sets D and N so that there is a p_0>1 so that for p in the interval (1,p_0), we may find a unique solution to the mixed problem and the gradient of the solution lies in L^p

    Weighted norm inequalities for polynomial expansions associated to some measures with mass points

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    Fourier series in orthogonal polynomials with respect to a measure ν\nu on [1,1][-1,1] are studied when ν\nu is a linear combination of a generalized Jacobi weight and finitely many Dirac deltas in [1,1][-1,1]. We prove some weighted norm inequalities for the partial sum operators SnS_n, their maximal operator SS^* and the commutator [Mb,Sn][M_b, S_n], where MbM_b denotes the operator of pointwise multiplication by b \in \BMO. We also prove some norm inequalities for SnS_n when ν\nu is a sum of a Laguerre weight on R+\R^+ and a positive mass on 00

    Continuous Wavelets on Compact Manifolds

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    Let M\bf M be a smooth compact oriented Riemannian manifold, and let ΔM\Delta_{\bf M} be the Laplace-Beltrami operator on M{\bf M}. Say 0 \neq f \in \mathcal{S}(\RR^+), and that f(0)=0f(0) = 0. For t>0t > 0, let Kt(x,y)K_t(x,y) denote the kernel of f(t2ΔM)f(t^2 \Delta_{\bf M}). We show that KtK_t is well-localized near the diagonal, in the sense that it satisfies estimates akin to those satisfied by the kernel of the convolution operator f(t2Δ)f(t^2\Delta) on \RR^n. We define continuous S{\cal S}-wavelets on M{\bf M}, in such a manner that Kt(x,y)K_t(x,y) satisfies this definition, because of its localization near the diagonal. Continuous S{\cal S}-wavelets on M{\bf M} are analogous to continuous wavelets on \RR^n in \mathcal{S}(\RR^n). In particular, we are able to characterize the Ho¨\ddot{o}lder continuous functions on M{\bf M} by the size of their continuous S{\mathcal{S}}-wavelet transforms, for Ho¨\ddot{o}lder exponents strictly between 0 and 1. If M\bf M is the torus \TT^2 or the sphere S2S^2, and f(s)=sesf(s)=se^{-s} (the ``Mexican hat'' situation), we obtain two explicit approximate formulas for KtK_t, one to be used when tt is large, and one to be used when tt is small

    On Fourier transforms of radial functions and distributions

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    We find a formula that relates the Fourier transform of a radial function on Rn\mathbf{R}^n with the Fourier transform of the same function defined on Rn+2\mathbf{R}^{n+2}. This formula enables one to explicitly calculate the Fourier transform of any radial function f(r)f(r) in any dimension, provided one knows the Fourier transform of the one-dimensional function tf(t)t\to f(|t|) and the two-dimensional function (x1,x2)f((x1,x2))(x_1,x_2)\to f(|(x_1,x_2)|). We prove analogous results for radial tempered distributions.Comment: 12 page

    Measurement of the mass difference between top quark and antiquark in pp collisions at root s=8 TeV

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