Skip to main content

7 Result(s)

within J. J. Swetits Remove this filter

and

  1. No Access

    Article

    On density of interpolation points, a Kadec-type theorem, and Saff's principle of contamination inL p-approximation

    Letf ∈L p (I) and denote byB n,p (f) the polynomial of bestL p-approximation tof of degreen (1<p<∞,I=[−1,1], the norm is weightedL p-norm with an arbitrary positive weight). Ex...

    A. Kroó, J. J. Swetits in Constructive Approximation (1992)

  2. No Access

    Article

    Local Lipschitz constants and Kolushov polynomials

    M. W. Bartelt, J. J. Swetits in Acta Mathematica Hungarica (1991)

  3. No Access

    Chapter

    Energy Transfer in Cr, Tm:YAG

    We describe a systematic analysis of energy transfer processes in crystals of YAG doped with varying concentrations of Cr and Tm. We use both spectral measurements and measurements of the temporal response to ...

    A. M. Buoncristiani, G. Armagan… in Advances in Nonradiative Processes in Soli… (1991)

  4. No Access

    Article

    Best monotone approximation and the Hardy-Littlewood maximal function

    If f∈L2[0, 1] and g*∈L2[0, 1] is the best non-decreasing approximation to f, then it's shown that ‖f−g*‖2=‖f−θ(f)‖2, where θ(f) denotes the Hardy-Littlewood maximal function of f.

    J. J. Swetits, S. E. Weinstein in Approximation Theory and its Applications (1989)

  5. No Access

    Article

    Construction of a best monotone approximation in Ip for 1<p<∞

    In this paper we present a construction of the best lp monotone approximation for 1<p<∞.

    J. J. Swetits, S. E. Weinstein in Approximation Theory and its Applications (1989)

  6. No Access

    Article

    Limits of strong unicity constants for certainC ∞ functions

    M. S. Henry, J. J. Swetits in Acta Mathematica Hungarica (1984)

  7. No Access

    Article

    On a class of non-linear filtration laws

    Non-linear filtration is of considerable practical importance, since it arises, in particular, in connection with oil drilling operations. Thus, for example, flows of paraffin-based oils, of oils containing as...

    C. Rogers, J. J. Swetits in Rheologica Acta (1975)