Results 61 to 70 of about 43,954 (320)

Isoresonant complex-valued potentials and symmetries

open access: yes, 2009
Let $X$ be a connected Riemannian manifold such that the resolvent of the free Laplacian $(\Delta-z)^{-1}, z\in\C\setminus\R^{+},$ has a meromorphic continuation through $\R^{+}$. The poles of this continuation are called resonances.
Agmon   +23 more
core   +1 more source

Resolvable, not maximally resolvable spaces

open access: yesTopology and its Applications, 1997
According to \textit{J. G. Ceder} [Fundam. Math. 55, 87-93 (1964; Zbl 0139.40401)] following E. Hewitt (1963), a space \(X= (X,{\mathcal T})\) is said to be \(\kappa\)-resolvable if \(X\) is the union of \(\kappa\)-many pairwise disjoint dense subsets; and \(X\) is maximally resolvable if \(X\) is \(\Delta(X)\)-resolvable, where \(\Delta(X)= \min\{| U|:
openaire   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Properties of the resolvent of singular q-Dirac operators

open access: yesElectronic Journal of Differential Equations, 2020
In this article, we investigate the resolvent operator of a singular q-Dirac system. We obtain an integral representations for the resolvent of this system, in terms of the spectral function.
Bilender P. Allahverdiev, Huseyin Tuna
doaj  

Approximating Functions of Positive Compact Operators by Using Bell Polynomials

open access: yesAxioms, 2020
After recalling the most important properties of the Bell polynomials, we show how to approximate a positive compact operator by a suitable matrix. Then, we derive a representation formula for functions of the obtained matrix, which can be considered as ...
Diego Caratelli   +2 more
doaj   +1 more source

Quartic rings associated to binary quartic forms

open access: yes, 2011
We give a bijection between binary quartic forms and quartic rings with a monogenic cubic resolvent ring, relating the rings associated to binary quartic forms with Bhargava's cubic resolvent rings.
Wood, Melanie Matchett
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

The Fourier transform and convolutions generated by a differential operator with boundary condition on a segment

open access: yes, 2013
We introduce the concepts of the Fourier transform and convolution generated by an arbitrary restriction of the differentiation operator in the space $L_{2}(0,b).$ In contrast to the classical convolution, the introduced convolution explicitly depends on
Kanguzhin, Baltabek   +1 more
core   +1 more source

An Elliptic Resolvent

open access: yesJournal of Number Theory, 1999
The main subject of this paper is a generalization of previous results \textit{R. Schertz} [J. Number Theory 39, 285-326 (1991; Zbl 0739.11052)]. Let \(K\) be an imaginary quadratic number field and \({a}\), \( {b}\) integer ideals in \(K\). The author gives an explicit Galois generator for the ring of integers of the ray class field over \(K\), in ...
openaire   +3 more sources

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