Results 101 to 110 of about 606,841 (237)

Quasi-Compact Perturbations of the Weyl Essential Spectrum and Application to Singular Transport Operators

International Journal of Analysis and Applications, 2015
This paper is devoted to the investigation of the stability of the Weyl essential spectrum of closed densely dened linear operator A subjected to additive perturbation K such that (lambda-A-K)^{-1}K or K(lambda-A-K)^{-1} is a quasi-compact operator ...
Leila Mebarki, Mohammed Benharrat, Bekkai Messirdi   +2 more
doaj  

Qualitative (pure) mathematics as an alternative to measurement. [PDF]

Front Psychol
Linkov V.
europepmc   +1 more source

Russian Papers on Pure and Applied Mathematics [PDF]

, 1945

openalex   +1 more source

A Quest for the Existence of Bi-Conditional Statements Over the Theory of a Model [Category-Research Paper Sub: Pure Mathematics (AMS -MSC2010 No. 03C60)]

, 2021
Soham Dasgupta
openalex   +1 more source

The Performance of Learners' Strategic Flexibility and Its Relationship with External Factors and Cognitive Flexibility: A Survey of High School Mathematics in China. [PDF]

Behav Sci (Basel)
Yang X, Feng K, Zhang Y, Xiong B.
europepmc   +1 more source

Editorial: Critical debates on quantitative psychology and measurement: Revived and novel perspectives on fundamental problems. [PDF]

Front Psychol
Uher J, Arnulf JK, Hanfstingl B.
europepmc   +1 more source

Hilbert's problems, Kant, and decidability. [PDF]

Arch Hist Exact Sci
Bodner M.
europepmc   +1 more source

L. E. Elsgolc, Calculus of Variations (International series of monographs on Pure and Applied Mathematics, Vol. 19, Pergamon Press, Oxford, 1961), 178 pp., 30s. [PDF]

, 1962
R. P. Gillespie
openalex   +1 more source

Quantum higher-order Fourier analysis and the Clifford hierarchy. [PDF]

Proc Natl Acad Sci U S A
Bu K, Gu W, Jaffe A.
europepmc   +1 more source

A Priori Knowledge in Perspective: Mathematics, Method and Pure Intuition

, 1987
Stephen R. Palmquist
openalex   +2 more sources