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16 712 (0,24s) •

Result

Estimates of Initial Scales for Layers with Small Random Negative-Definite Perturbations

with small random perturbations. Perturbations are distributed in periodicity cells of an arbitrarily chosen periodic lattice. To each cell, we put in correspondence a random variable; these random variab...

Applied mathematics

  • 2019
    • •
  • JSC
    • •
  • Link
Result

Random noise and perturbation of copulas

For a random vector (X,Y) characterized by a copula CX,Y we study its perturbation CX+Z,Y characterizing the random vector (X+Z,Y) affected by a noise Z independent of both X and Y. Several examples are added, including a n...

Statistics and probability

  • 2019
    • •
  • Jimp
    • •
  • Link
Result

A comprehensive family of copulas to model bivariate random noise and perturbation

Based on the random vector (X + Z, Y + Z) we study the perturbation C(X)(+ Z,Y+Z )of the copula C-X(, Y) of the random vector (X, Y) when the random noise Z is independent of both X and Y. We also propose a bivaria...

Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

  • 2021
    • •
  • Jimp
    • •
  • Link
Result

Initial length scale estimate for waveguides with some random singular potentials

In this work we consider three examples of random singular perturbations in multi-dimensional models of waveguides. These perturbations are described by a large potential supported on a set of a small measure, by a compactl...

BA - Obecná matematika

  • 2015
    • •
  • Jx
    • •
  • Link
Result

Quantum Hamiltonians with Weak Random Abstract Perturbation. II. Localization in the Expanded Spectrum

We consider multi-dimensional Schrodinger operators with a weak random perturbation distributed in the cells of some periodic lattice. In every cell the perturbation is described by the translate of a fixed abstract operato...

Applied mathematics

  • 2021
    • •
  • Jimp
    • •
  • Link
Result

Towards Microstructure-based Random Field Models of Heterogeneous Media

to the analysis of finite heterogeneous elastic bodies with a random arrangement of individual phases. The examined methods are the representatives of perturbation techniques, non-perturbative approaches and the tools of t...

JI - Kompositní materiály

  • 2007
    • •
  • D
Result

Generically there are no chaotic maps with random perturbations

BA - Obecná matematika

  • 1995
    • •
  • Jx
Result

System response with random imperfections in coefficients on the space of realizations

The contribution is concerned with the analysis of the simultaneous effect of a random perturbation and a white noise in the coefficient of the system noise. The random perturbation in the parameter is considered a...

Civil engineering

  • 2019
    • •
  • D
Result

Multiband Patch Antenna with Perturbation Elements Generated by Genetic Algorithm

Paper deal with the design of dualband patch antenna with edge perturbation elements in the form of notches. Their size if need shape is modified by genetic algorithm. Perturbation element is generated by random proccess in...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2006
    • •
  • A
Result

Multiband Patch Antenna with Perturbation Elements Generated by Genetic Algorithm

Paper deal with the design of dualband patch antenna with edge perturbation elements in the form of notches. Their size if need shape is modified by genetic algorithm. Perturbation element is generated by random proccess in...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2006
    • •
  • D
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