Results 81 to 90 of about 110,219 (262)

Special Functions of Hypercomplex Variable on the Lattice Based on SU(1,1)

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
Based on the representation of a set of canonical operators on the lattice hZn, which are Clifford-vector-valued, we will introduce new families of special functions of hypercomplex variable possessing su(1,1) symmetries. The Fourier decomposition of the
Nelson Faustino
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Order-Bounded Difference in Weighted Composition Operators Between Fock Spaces

open access: yesMathematics
There are two aims in this paper. The first aim is to characterize the order-bounded weighted composition operators between Fock spaces, and the second is to further characterize the order-bounded difference in weighted composition operators between Fock
Xiao-Feng Peng, Zhi-Jie Jiang
doaj   +1 more source

Differences of weighted composition operators

open access: yesCollectanea mathematica, 2009
Let \(\mathbb D\) be the open unit disk in the complex plane \(\mathbb C\), \(\varphi:{\mathbb D}\rightarrow {\mathbb D}\), \(\psi:{\mathbb D}\rightarrow {\mathbb C}\) be analytic functions. The weighted composition operator is acting on the functions defined on \(\mathbb D\) by the formula \[ (C_{\varphi,\psi}f)(z)=\psi(z)f(\varphi(z)), \quad z\in ...
openaire   +3 more sources

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Estimates of Solutions of Elliptic Differential-Difference Equations with Degeneration

open access: yesСовременная математика: Фундаментальные направления, 2018
We consider a second-order differential-difference equation in a bounded domain Q ⊂ Rn. We assume that the differential-difference operator contains some difference operators with degeneration corresponding to differentiation operators.
V A Popov
doaj   +1 more source

On difference of operators with different basis functions

open access: yesFilomat, 2019
In the recent years several researchers have studied problems concerning the difference of two linear positive operators, but all the available literature on this topic is for operators having same basis functions. In the present paper, we deal with the general quantitative estimate for the difference of operators having different basis ...
Gupta, Vijay, Acu, Ana Maria
openaire   +2 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Solutions of the system of maximum difference equations 1 1 3 3 1 1 max , ; max , n n n n n n n n y x x y xx yy + + − −   =   =  

open access: yesMANAS: Journal of Engineering, 2019
This paper deals with the behaivour of the solutions of the max‐type system of difference equationsxn+1=max{1/xn-3,yn/xn}, yn+1=max{1/yn-3,xn/yn},where the initial conditions are positive real numbers.
Dağıstan Şimşek, Burak Oğul
doaj  

COEFFICIENT STABILITY OF OPERATOR–DIFFERENCE SCHEMES

open access: yesMathematical Modelling and Analysis, 1999
A priori estimates expressing continuous dependence of the solution of a first order evolutionary equation in Hubert space on initial condition, right hand side and operator perturbations are obtained in time–integral norms. Analogous results hold for corresponding finite difference schemes.
Matus, P. P., Jovanović, B. S.
openaire   +4 more sources

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