Results 41 to 50 of about 4,447 (309)

Coprime Factorization with J All-Pass Denominator: The Noncanonical Case [PDF]

open access: yes, 1999
Given an arbitrary rational matrix G, we are interested to construct the class of coprime factorizations of G with J-all pass denominators of McMillan degree as small as possible.
A. Varga   +3 more
core   +1 more source

Unification and extension of the factorization method for constructing exactly and conditionally-exactly solvable potentials. The case of a single potential generating function

open access: yesResults in Physics, 2022
The article proposes a new algorithm for applying the factorization method to the problem of calculating the spectrum of exactly and conditionally exactly solvable potentials.
R.R. Nigmatullin   +2 more
doaj   +1 more source

On the Complexity of Noncommutative Polynomial Factorization [PDF]

open access: yesInformation and Computation, 2015
In this paper we study the complexity of factorization of polynomials in the free noncommutative ring $\mathbb{F}\langle x_1,x_2,\dots,x_n\rangle$ of polynomials over the field $\mathbb{F}$ and noncommuting variables $x_1,x_2,\ldots,x_n$. Our main results are the following.
Vikraman Arvind   +2 more
openaire   +3 more sources

Schemes for deterministic polynomial factoring [PDF]

open access: yesProceedings of the 2009 international symposium on Symbolic and algebraic computation, 2009
In this work we relate the deterministic complexity of factoring polynomials (over finite fields) to certain combinatorial objects we call m-schemes. We extend the known conditional deterministic subexponential time polynomial factoring algorithm for finite fields to get an underlying m-scheme.
Gábor Ivanyos   +2 more
openaire   +3 more sources

Factorization of Matrix Polynomials with Symmetries [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 1994
This paper presents a detailed study of the factorizations of matrix polynomials with symmetries. It begins with defining the key properties of matrix polynomials to be discussed: selfadjoint, symmetric, general rank, generally invertible, etc. Then representations of factorizations of various matrix polynomials are presented in detail.
André C. M. Ran, Leiba Rodman
openaire   +1 more source

On the Composition Ideals of Schatten Class Type Mappings

open access: yesJournal of Mathematics, 2016
We study the composition ideals of multilinear and polynomial mappings generated by Schatten classes. We give some coincidence theorems for Cohen strongly 2-summing multilinear operators and factorization results like that given by Lindenstrauss ...
Abdelaziz Belaada   +2 more
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Vector-exponential time-series modeling for polynomial J-spectral factorization [PDF]

open access: yes, 2005
An iterative algorithm to perform the J-spectral factorization of a para-Hermitian matrix is presented. The algorithm proceeds by computing a special kernel representation of an interpolant for a sequence of points and associated directions determined ...
Pendharkar, Ishan   +2 more
core  

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Factorizations of Symmetric Macdonald Polynomials [PDF]

open access: yesSymmetry, 2018
We prove many factorization formulas for highest weight Macdonald polynomials indexed by particular partitions called quasistaircases. Consequently, we prove a conjecture of Bernevig and Haldane stated in the context of the fractional quantum Hall effect theory.
Laura Colmenarejo   +2 more
openaire   +6 more sources

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