Results 191 to 200 of about 4,824 (216)

Spectral Tuning of Hyperbolic Shear Polaritons in Monoclinic Gallium Oxide via Isotopic Substitution

open access: yesAdvanced Materials, EarlyView.
Spectral tuning of highly directional hyperbolic shear polaritons is realized via isotopic substitution of 16O to 18O in monoclinic β$\beta$‐phase gallium oxide. A red‐shift of almost 40 cm−1 is experimentally demonstrated with near‐field imaging, corroborated by the permittivity change extracted from far‐field experiments and density functional theory.
Giulia Carini   +28 more
wiley   +1 more source

Equivalence Theorem for Absolute Matrix Summability Methods

Mathematical Notes, 2023
Suppose that $\sum_{n=0}^{\infty}a_n$ is an infinite series with partial sums $(s_n)$, and $(p_n)$ is a sequence of positive numbers such that $P_n=\sum_{k=0}^{n}p_k\rightarrow\infty$ as $n\rightarrow\infty$, and for all negative subscripts $P_{-n}$, $p_{-n}$ ($n\ge1$) are assumed to be~$0$.
openaire   +2 more sources

Necessary conditions for absolute matrix summability methods

Bollettino dell'Unione Matematica Italiana, 2015
The authors obtain necessary conditions in order that a series \(\sum a_{n}\) should be summable \(|B,q_{n}|_{k}\) whenever \(\sum a_{n}\) is summable \( |A,p_{n}|_{k}\) as a generalization of the result of \textit{H. Bor} and \textit{B. Thorpe} [Analysis 12, No. 1--2, 1--3 (1992; Zbl 0753.40007)].
Ozgen, H. N., ÖZARSLAN, HİKMET
openaire   +2 more sources

Strong summability of double series by matrix methods and Tauberian theorems for these methods

Mathematical Notes of the Academy of Sciences of the USSR, 1975
Conditions are established under which matrix transformations of double series and sequences preserve strong convergence. In addition, a general Tauberian theorem is established and applied to the method of Borel.
openaire   +1 more source

Molecular imaging in oncology: Current impact and future directions

Ca-A Cancer Journal for Clinicians, 2022
Steven P Rowe, Martin G Pomper
exaly  

Radiotheranostics in oncology: Making precision medicine possible

Ca-A Cancer Journal for Clinicians, 2023
Eric Aboagye
exaly  

Enhancing global access to cancer medicines

Ca-A Cancer Journal for Clinicians, 2020
Javier Cortes   +2 more
exaly  

Home - About - Disclaimer - Privacy