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Conditional Convergence |
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conditional convergence [kən′dish·ən·əl kən′vər·jəns]
(mathematics) The property of a series that is convergent but not absolutely convergent. Conditional Convergence a concept of mathematical analysis. The series
is said to be conditionally convergent if it is convergent and the series
(whose terms are the absolute values of the terms of the original series) is divergent. For example, the series
is conditionally convergent, since the absolute values of its terms form the divergent, harmonic series
If a series is conditionally convergent, then the two series consisting of its positive and negative terms, respectively, are divergent. According to Riemann’s theorem, by an appropriate rearrangement of the terms of a given conditionally convergent series we can obtain a divergent series or a series that has a prescribed sum. If two conditionally convergent series are multiplied term by term, a divergent series may result. The concept of conditional convergence can be extended to series of vectors, to infinite products, and to improper integrals. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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