Results 21 to 30 of about 805,934 (287)

A new perspective on the spatio-temporal variability of soil moisture: temporal dynamics versus time-invariant contributions [PDF]

open access: yesHydrology and Earth System Sciences, 2012
Knowledge about the spatio-temporal variability of soil moisture is essential to understand and predict processes in climate science and hydrology. A significant body of literature exists on the characterization of the spatial variability and the rank ...
H. Mittelbach, S. I. Seneviratne
doaj   +1 more source

Totally umbilical proper slant submanifolds of para-Kenmotsu manifold

open access: yesCubo, 2019
In this paper, we study slant submanifolds of a para-Kenmotsu manifold. We prove that totally umbilical slant submanifold of a para-Kenmotsu manifold is either invariant or anti-invariant or dimension of submanifold is 1 or the mean curvature vector H of
M.S. Siddesha, C.S. Bagewadi, D. Nirmala
doaj   +1 more source

Invariant information and quantum state estimation [PDF]

open access: yes, 2001
The invariant information introduced by Brukner and Zeilinger, Phys. Rev. Lett. 83, 3354 (1999), is reconsidered from the point of view of quantum state estimation. We show that it is directly related to the mean error of the standard reconstruction from
A. Zeilinger   +18 more
core   +2 more sources

Infinite Matrices and Invariant Means [PDF]

open access: yesProceedings of the American Mathematical Society, 1972
Let a be a one-to-one mapping of the set of positive integers into itself such that av(n)On for all positive integers n and p, where aP(n) = a(a-1(n)), p = 1, 2, . A continuous linear functional p on the space of real bounded sequences is an invariant mean if p(x)_O when the sequence x={x,} has xn_O for all n, p({l, 1, 1, * })=+1, and T({x,(n)})=P(x ...
openaire   +2 more sources

In--out intermittency in PDE and ODE models [PDF]

open access: yes, 2001
We find concrete evidence for a recently discovered form of intermittency, referred to as in--out intermittency, in both PDE and ODE models of mean field dynamos.
Andrew Tworkowski   +38 more
core   +2 more sources

Thickness in topological transformation semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
This article deals with thickness in topological transformation semigroups (τ-semigroups). Thickness is used to establish conditions guaranteeing an invariant mean on a function space defined on a τ-semigroup if there exists an invariant mean on its ...
Tyler Haynes
doaj   +1 more source

Invariant means

open access: yesJournal of Mathematical Analysis and Applications, 2002
Submitted for publication-20 pages.
openaire   +2 more sources

Mean action and the Calabi invariant

open access: yes, 2016
Given an area-preserving diffeomorphism of the closed unit disk which is a rotation near the boundary, one can naturally define an "action" function on the disk which agrees with the rotation number on the boundary.
Hutchings, Michael
core   +1 more source

Some Spaces of Double Sequences Obtained through Invariant Mean and Related Concepts

open access: yesAbstract and Applied Analysis, 2013
We introduce some double sequences spaces involving the notions of invariant mean (or -mean) and -convergence for double sequences while the idea of -convergence for double sequences was introduced by Çakan et al.
S. A. Mohiuddine, Abdullah Alotaibi
doaj   +1 more source

Invariance Property for Extended Means

open access: yesResults in Mathematics, 2023
AbstractWe study the properties of the mean-type mappings $$\textbf{M}:I^p \rightarrow I^p$$ M : I p → I p
openaire   +3 more sources

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