Some relations between the Caputo fractional difference operators and integer-order differences

In this article, we are concerned with the relationships between the sign of Caputo fractional differences and integer nabla differences. In particular, we show that if $N-1<\nu<N$, $f:\mathbb{N}_{a-N+1}\to\mathbb{R}$, $\nabla^\nu_{a^*}f(t)\geq 0$, for $t\in\mathbb{N}_{a+1}$ and $\nabla^...

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Main Authors: Baoguo Jia, Lynn Erbe, Allan Peterson
Format: Article
Language:English
Published: Texas State University 2015-06-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/Volumes/2015/163/abstr.html
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author Baoguo Jia
Lynn Erbe
Allan Peterson
author_facet Baoguo Jia
Lynn Erbe
Allan Peterson
author_sort Baoguo Jia
collection DOAJ
description In this article, we are concerned with the relationships between the sign of Caputo fractional differences and integer nabla differences. In particular, we show that if $N-1<\nu<N$, $f:\mathbb{N}_{a-N+1}\to\mathbb{R}$, $\nabla^\nu_{a^*}f(t)\geq 0$, for $t\in\mathbb{N}_{a+1}$ and $\nabla^{N-1}f(a)\geq 0$, then $\nabla^{N-1}f(t)\geq 0$ for $t\in\mathbb{N}_a$.
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spelling doaj.art-4b26909097b84fc4ae29901775c0b06c2022-12-22T03:22:49ZengTexas State UniversityElectronic Journal of Differential Equations1072-66912015-06-012015163,17Some relations between the Caputo fractional difference operators and integer-order differencesBaoguo Jia0Lynn Erbe1Allan Peterson2 Sun Yat-Sen Univ., Guangzhou, China Univ. of Nebraska, Lincoln, NE, USA Univ. of Nebraska, Lincoln, NE, USA In this article, we are concerned with the relationships between the sign of Caputo fractional differences and integer nabla differences. In particular, we show that if $N-1<\nu<N$, $f:\mathbb{N}_{a-N+1}\to\mathbb{R}$, $\nabla^\nu_{a^*}f(t)\geq 0$, for $t\in\mathbb{N}_{a+1}$ and $\nabla^{N-1}f(a)\geq 0$, then $\nabla^{N-1}f(t)\geq 0$ for $t\in\mathbb{N}_a$.http://ejde.math.txstate.edu/Volumes/2015/163/abstr.htmlCaputo fractional differencemonotonicityTaylor monomial
spellingShingle Baoguo Jia
Lynn Erbe
Allan Peterson
Some relations between the Caputo fractional difference operators and integer-order differences
Electronic Journal of Differential Equations
Caputo fractional difference
monotonicity
Taylor monomial
title Some relations between the Caputo fractional difference operators and integer-order differences
title_full Some relations between the Caputo fractional difference operators and integer-order differences
title_fullStr Some relations between the Caputo fractional difference operators and integer-order differences
title_full_unstemmed Some relations between the Caputo fractional difference operators and integer-order differences
title_short Some relations between the Caputo fractional difference operators and integer-order differences
title_sort some relations between the caputo fractional difference operators and integer order differences
topic Caputo fractional difference
monotonicity
Taylor monomial
url http://ejde.math.txstate.edu/Volumes/2015/163/abstr.html
work_keys_str_mv AT baoguojia somerelationsbetweenthecaputofractionaldifferenceoperatorsandintegerorderdifferences
AT lynnerbe somerelationsbetweenthecaputofractionaldifferenceoperatorsandintegerorderdifferences
AT allanpeterson somerelationsbetweenthecaputofractionaldifferenceoperatorsandintegerorderdifferences