Results 31 to 40 of about 72,702 (264)

Mach-Zehnder Interferometer Sensor Curvature Demodulation Method Based on the Orthogonal Decomposition of Spectral Curves

IEEE Access, 2020
This paper proposes a curvature demodulation of Mach-Zehnder interferometer (MZI) sensors based on complete spectral information. An MZI sensor composed of two waist-enlarged single mode fibers (SMFs) was fabricated.
Mingyao Liu, Jingliang Wang, Yi Liu, Yuegang Tan, Kang Yun, Liu Hong, Han Song, Xiangsheng Zeng, Ping Xia, Zhao Li   +9 more
doaj   +1 more source

Random matrices with equispaced external source [PDF]

, 2013
We study Hermitian random matrix models with an external source matrix which has equispaced eigenvalues, and with an external field such that the limiting mean density of eigenvalues is supported on a single interval as the dimension tends to infinity ...
Claeys, Tom, Wang, Dong
core   +2 more sources

Krein-Adler transformations for shape-invariant potentials and pseudo virtual states [PDF]

, 2013
For eleven examples of one-dimensional quantum mechanics with shape-invariant potentials, the Darboux-Crum transformations in terms of multiple pseudo virtual state wavefunctions are shown to be equivalent to Krein-Adler transformations deleting multiple
Odake, Satoru, Sasaki, Ryu
core   +2 more sources

Multi-indexed (q-)Racah Polynomials [PDF]

, 2012
As the second stage of the project multi-indexed orthogonal polynomials, we present, in the framework of `discrete quantum mechanics' with real shifts in one dimension, the multi-indexed (q-)Racah polynomials.
Andrews G E, Bannai E, Chakrabarti R, Darboux G, Fernández D J, Gendenshtein L E, Gladwell G M L, Grandati Y, Gómez-Ullate D, Ho C-L, Ho C-L, Ismail M E H, Koekoek R Swarttouw R F, Krein M G, Odake S, Odake S, Odake S, Parthasarathy P R, Quesne C, Quesne C, Quesne C, Ryu Sasaki, Sasaki R, Satoru Odake, Vinet L Zhedanov A   +24 more
core   +4 more sources

Random regressions models to describe the genetic variation of milk yield over multiple parities in Buffaloes

Italian Journal of Animal Science, 2010
The objectives of this study were to estimate (co)variance functions for additive genetic and permanent environmental effects, as well as the genetic parameters for milk yield over multiple parities, using random regressions models (RRM).
H. Tonhati, L.G. Albuquerque, R.R.A. Borquis, L.O. Seno, L. El Faro, A.B. Bignardi, R.C. Sesana   +6 more
doaj   +1 more source

Electrostatic Partners and Zeros of Orthogonal and Multiple Orthogonal Polynomials

Constructive Approximation, 2022
AbstractFor a given polynomial P with simple zeros, and a given semiclassical weight w, we present a construction that yields a linear second-order differential equation (ODE), and in consequence, an electrostatic model for zeros of P. The coefficients of this ODE are written in terms of a dual polynomial that we call the electrostatic partner of P ...
Martinez-Finkelshtein, Andrei, Orive, Ramón, Sánchez Lara, Joaquín Francisco   +2 more
openaire   +4 more sources

A Compressed Sensing Estimation Technique for Doubly Selective Channel in OFDM Systems

IEEE Access, 2019
In this work, an estimation algorithm based on the compressive sensing (CS) technique is proposed for an orthogonal frequency division multiplexing (OFDM) system applied to multi-path time-varying channels.
Huang-Chang Lee, Cihun-Siyong Alex Gong, Pin-Yuan Chen   +2 more
doaj   +1 more source

Vanishing sums of roots of unity and the Favard length of self-similar product sets

Discrete Analysis, 2022
Vanishing sums of roots of unity and the Favard length of self-similar product sets, Discrete Analysis 2022:19, 31 pp. An important theme in geometric measure theory is the typical size of a set when it is randomly projected. For example, suppose that $
Izabella Laba, Caleb Marshall
doaj   +1 more source

Appell polynomials and their relatives [PDF]

, 2004
This paper summarizes some known results about Appell polynomials and investigates their various analogs. The primary of these are the free Appell polynomials.
Anshelevich, Michael
core   +4 more sources

Mehler-Heine asymptotics for multiple orthogonal polynomials

, 2016
Mehler-Heine asymptotics describe the behavior of orthogonal polynomials near the edges of the interval where the orthogonality measure is supported. For Jacobi polynomials and Laguerre polynomials this asymptotic behavior near the hard edge involves ...
Van Assche, Walter
core   +1 more source