Results 1 to 10 of about 2,080,906 (167)

Local Hypoellipticity by Lyapunov Function

open access: yesAbstract and Applied Analysis, 2016
We treat the local hypoellipticity, in the first degree, for a class of abstract differential operators complexes; the ones are given by the following differential operators: Lj=∂/∂tj+(∂ϕ/∂tj)(t,A)A, j=1,2,…,n, where A:D(A)⊂H→H is a self-adjoint linear ...
E. R. Aragão-Costa
doaj   +4 more sources

Locally Sparse Function-on-Function Regression

open access: yesJournal of Computational and Graphical Statistics, 2022
In functional data analysis, functional linear regression has attracted significant attention recently. Herein, we consider the case where both the response and covariates are functions. There are two available approaches for addressing such a situation: concurrent and nonconcurrent functional models. In the former, the value of the functional response
Mauro Bernardi   +2 more
openaire   +3 more sources

From positional representation of numbers to positional representation of vectors

open access: yesActa Polytechnica, 2023
To represent real m-dimensional vectors, a positional vector system given by a non-singular matrix M ∈ ℤm×m and a digit set Ɗ ⊂ ℤm is used. If m = 1, the system coincides with the well known numeration system used to represent real numbers.
Izabella Ingrid Farkas   +2 more
doaj   +1 more source

Colicins of Escherichia coli Lead to Resistance against the Diarrhea-Causing Pathogen Enterotoxigenic E. coli in Pigs

open access: yesMicrobiology Spectrum, 2022
Gut microbes can affect host adaptation to various environment conditions. Escherichia coli is a common gut species, including pathogenic strains and nonpathogenic strains. This study was conducted to investigate the effects of different E.
Leli Wang   +17 more
doaj   +1 more source

Optimization, Characteristics, and Functions of Alkaline Phosphatase From Escherichia coli

open access: yesFrontiers in Microbiology, 2022
Weaning of piglets could increase the risk of infecting with Gram-negative pathogens, which can further bring about a wide array of virulence factors including the endotoxin lipopolysaccharide (LPS).
Yachao Dong   +19 more
doaj   +1 more source

Local sampling of the SU(1,1) Wigner function [PDF]

open access: yesEPJ Web of Conferences, 2023
The Wigner phase-space formulation for systems possessing SU(1,1) symmetry has been defined by Seyfarth et al. [Quantum 4, 317 (2020)] tackling the difficulty in defining a suitable operational definition of the Wigner function.
Fabre Nicolas   +3 more
doaj   +1 more source

Common properties and approximations of local function and set operator $\psi$

open access: yesCumhuriyet Science Journal, 2020
Through this paper, we shall obtain common properties of local functionand set operator $\psi$ and introduce the approximations of local function and set operator $\psi$.We also determined expansion of local function and set operator $\psi$ .
Shyamapada Modak   +2 more
doaj   +1 more source

Facile synthesis of calabash-shaped and twin-tail tadpole-shaped copolymers via photothermal-induced topological transformation

open access: yesGiant, 2023
Rational design of architecture-transformable polymers with dynamic covalent bonds allows to form multiple ring-bearing analogues and gain insight into topology-tunable physicochemical properties.
Zhigang Wang, Yong Lin, Youliang Zhao
doaj   +1 more source

Molecular mechanism of the spider toxin κ-LhTx-I acting on the bacterial voltage-gated sodium channel NaChBac

open access: yesFrontiers in Pharmacology, 2022
The bacterial sodium channel NaChBac is the prokaryotic prototype for the eukaryotic NaV and CaV channels, which could be used as a relatively simple model to study their structure–function relationships.
Zhen Xiao   +9 more
doaj   +1 more source

Locally constant functions [PDF]

open access: yesFundamenta Mathematicae, 1996
Let X be a compact Hausdorff space and M a metric space. E_0(X,M) is the set of f in C(X,M) such that there is a dense set of points x in X with f constant on some neighborhood of x. We describe some general classes of X for which E_0(X,M) is all of C(X,M).
Hart, Joan, Kunen, Kenneth
openaire   +3 more sources

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