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227 735 (0,261s)

Result

A Sobolev-Type Upper Bound for Rates of Approximation by Linear Combinations of Heaviside Plane Waves

For sufficiently differntiable functions, there are derived estimates of rates of approximation by linear combinations of Heaviside plane waves converging to zero exponentially fast. The estimates depend on Sobolev seminorms and the number o...

IN - Informatika

  • 2007
  • Jx
Result

Best Approximation by Linear Combinations of Characteristic Functions of Half-Spaces.

It is shown that for any positive integer n and any Lp-function f there exist n half-spaces such that f has a best approximation by a linear combination of their characteristic functions. Further, any sequ...

BA - Obecná matematika

  • 2003
  • Jx
Result

Best Approximation by Linear Combination of Characteristic Functions of Half-Spaces.

Annotation not available...

BD - Teorie informace

  • 1999
  • Vx
Result

Integral Combinations of Heavisides

A sufficiently smooth function of d variables that decays fast enough at infinity can be represented pointwise by an integral combination of Heaviside plane waves (i.e., characteristic functions of closed half<...

BA - Obecná matematika

  • 2010
  • Jx
Result

Approximation by Perceptron Networks.

Recent results on properties of approximation by linear combinations of characteristic functions of half-spaces are surveyed....

BA - Obecná matematika

  • 2002
  • D
Result

Transient Close-Range Electromagnetic Field Coupling Between Loop Antennas at the Interface of Dissipative Half-Spaces

loop antennas located at the interface of two half-spaces with dielectric that the thus obtained closed-form TD analytical expressions can be applied to evaluate the close-range EM-field signal transfer between tw...

Communication engineering and systems

  • 2021
  • Jimp
  • Link
Result

Construction of Function Spaces Close to L∞ with Associate Space Close to L1

The paper introduces a variable exponent space X which has in common with L^∞ [0, 1]) the property that the space C([0, 1]) of continuous functions on [0, 1] is a closed linear subspace in it. The associate spa...

Pure mathematics

  • 2018
  • Jimp
  • Link
Result

From strong to very weak solutions to the Stokes system with Navier boundary concitions in the half-space

We consider the Stokes problem with slip-type boundary conditions in the half-space R-+(n), with n >= 2. The weighted Sobolev spaces yield the functional framework. We first study generalized and strong solutions a...

BA - Obecná matematika

  • 2009
  • Jx
Result

Efficiency Treatment of Two Closely Spaced Dipoles by Characteristic Mode Theory

The two closely spaced dipoles exhibit frequency narrow deep decline of radiation efficiency. This phenomenon istreated by theory of characteristic modes (TCM). Modal currents excited close to the resonant frequenc...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2008
  • D
Result

On asymptotic expansion of the harmonic Berezin transform on the half-space

We give a complete asymptotic expansion of the Berezin transform associated to the Bergman space of harmonic functions on the half-space H := {(x, y) is an element of Rn+1; x is an element of R-n, y > 0} that are s...

BA - Obecná matematika

  • 2013
  • Jx
  • Link
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