Results 11 to 20 of about 177,357 (261)

Asymptotically double lacunry equivalent sequences defined by Orlicz functions

open access: yesActa Scientiarum: Technology, 2014
This paper presents the following definition which is natural combition of the definition for asymptotically equivalent and Orlicz function. The two nonnegative double sequences x=(x_{k,l}) and y=(y_{k,l}) are said to be M-asymptotically double ...
Ayhan Esi
doaj   +1 more source

On p‐Convergence in Measure of a Sequence of Measurable Functions [PDF]

open access: yesAbstract and Applied Analysis, 2011
In the study by Papanastassiou and Papachristodoulos, 2009 the notion of p‐convergence in measure was introduced. In a natural way p‐convergence in measure induces an equivalence relation on the space M of all sequences of measurable functions converging in measure to zero. We show that the quotient space ℳ is a complete but not compact metric space.
BOCCUTO, Antonio   +2 more
openaire   +4 more sources

Quartic Lp-convergence of cubic Riemannian splines [PDF]

open access: yesIMA Journal of Numerical Analysis, 2021
Abstract We prove quartic convergence of cubic spline interpolation for curves into Riemannian manifolds as the grid size of the interpolation grid tends to zero. In contrast to cubic spline interpolation in Euclidean space, where this result is classical, the interpolation operator is no longer linear.
Hanne Hardering, Benedikt Wirth
openaire   +2 more sources

Giant lobelias exemplify convergent evolution

open access: yesBMC Biology, 2010
Giant lobeliads on tropical mountains in East Africa and Hawaii have highly unusual, giant-rosette growth forms that appear to be convergent on each other and on those of several independently evolved groups of Asteraceae and other families.
Givnish Thomas J
doaj   +1 more source

Convergent Evolution of Locomotory Modes in Euarchontoglires

open access: yesFrontiers in Ecology and Evolution, 2020
The research of phenotypic convergence is of increasing importance in adaptive evolution. Locomotory modes play important roles in the adaptive evolution of species in the Euarchontoglires, however, the investigation of convergent evolution of the ...
Wei-hang Geng   +11 more
doaj   +1 more source

Analogues of some fundamental theorems of summability theory

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
In 1911, Steinhaus presented the following theorem: if A is a regular matrix then there exists a sequence of 0's and 1's which is not A-summable. In 1943, R. C.
Richard F. Patterson
doaj   +1 more source

A multi-gene phylogeny of Cephalopoda supports convergent morphological evolution in association with multiple habitat shifts in the marine environment

open access: yesBMC Evolutionary Biology, 2012
Background The marine environment is comprised of numerous divergent organisms living under similar selective pressures, often resulting in the evolution of convergent structures such as the fusiform body shape of pelagic squids, fishes, and some marine ...
Lindgren Annie R   +3 more
doaj   +1 more source

Adaptation and Concurrent Validity of Screen for Children Anxiety Related Emotional Disorders (SCARED)

open access: yesNUST Journal of Social Sciences and Humanities, 2021
The current study was designed to adapt and investigate the psychometric properties of SCARED (screening children for anxiety related emotional disorders) as the first anxiety related emotional disorder screening tool for Pakistani children.
Shaf Ahmed   +2 more
doaj   +3 more sources

On some new paranormed sequence spaces of fuzzy numbers defined by Orlicz functions and statistical convergence

open access: yesMathematical Modelling and Analysis, 2006
In this paper we introduce the concept of strongly λ(p) convergence of fuzzy numbers with respect to an Orlicz function and examine some properties of the resulting sequence spaces and λ(p) – statistical convergence.
A. Esi
doaj   +1 more source

Double sequence core theorems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1999
In 1900, Pringsheim gave a definition of the convergence of double sequences. In this paper, that notion is extended by presenting definitions for the limit inferior and limit superior of double sequences.
Richard F. Patterson
doaj   +1 more source

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