Hostname: page-component-8448b6f56d-dnltx Total loading time: 0 Render date: 2024-04-16T18:09:36.297Z Has data issue: false hasContentIssue false

The space of p-summable sequences and its natural n-norm

Published online by Cambridge University Press:  17 April 2009

Hendra Gunawan
Affiliation:
Department of Mathematics, Bandung Institute of Technology, Bandung 40132, Indonesia e-mail: hgunawan@dns.math.itb.ac.id
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We study the space lp, 1 ≤ p ≤ ∞, and its natural n-norm, which can viewed as a generalisation of its usual norm. Using a derived norm equivalent to its usual norm, we show that lp is complete with respect to its natural n-norm. In addition, we also prove a fixed point theorem for lp as an n-normed space.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 2001

References

[1]Browna, A.L. and Page, A.. Elements of functional analysis (Van Nostrand Reinhold company, London, 1970).Google Scholar
[2]Diminnie, C., Gähler, S. and White, A., ‘2-inner product spaces’, Demonstratio Math. 6 (1973), 525536.Google Scholar
[3]Diminnie, C., Gähler, S. and White, A., ‘2-inner product spaces. II’, Demonstratio Math. 10 (1977), 169188.Google Scholar
[4]Gähler, S., ‘2-metrische Räume und ihre topologische Struktur’, Math. Nachr. 26 (1963), 115148.CrossRefGoogle Scholar
[5]Gähler, S., ‘Lineare 2-normietre Räume’, Math. Nachr. 28 (1964), 143.CrossRefGoogle Scholar
[6]Gähler, S., ‘Untersuchungen über verallgemeinerte m-metrische Räume. I’, Math. Nachr. 40 (1969), 165189.CrossRefGoogle Scholar
[7]Gähler, S., ‘Untersuchungen über verallgemeinerte m-metrische Räume, II’, Math. Nachr. 40 (1969), 229264.Google Scholar
[8]Gähler, S., ‘Untersuchungen über verallgemeinerte m-metrische Räume. III’, Math. Nachr. 41 (1970), 2336.CrossRefGoogle Scholar
[9]Ganguly, A., ‘Fixed point theorem on 2-Banach space’, J. Indian Acad. Math. 4 (1982), 8081.Google Scholar
[10]Greub, W., Linear algebra (Springer-Verlag, Berlin, Heidelberg, New York, 1975).CrossRefGoogle Scholar
[11]Gunawan, H., ‘On n-inner products, n-norms, and the Cauchy-Schwarz inequality’, Math. Japon. (to appear).Google Scholar
[12]Gunawan, H., ‘Any n-inner product space is an inner product space’, (submitted).Google Scholar
[13]Gunawan, H. and Mashadi, , ‘On finite-dimensional 2-normed spaces’, Soochow J. Math. (to appear).Google Scholar
[14]Gunawan, H. and Mashadi, , ‘On n-normed spaces’, Int,. J. Math. Sci. (to appear).Google Scholar
[15]Jain, D.R. and Chugh, R., ‘A common fixed point theorem in 2-normed spaces’, Far East J. Math. Sci. 3 (1995), 5161.Google Scholar
[16]Khan, M.S. and Khan, M.D., ‘Involutions with fixed points in 2-Banach spaces’, Internat. J. Math. Math. Sci. 16 (1993), 429433.CrossRefGoogle Scholar
[17]Kim, S.S. and Cho, Y.J., ‘Strict convexity in linear n-normed spaces’, Demonstratio Math. 29 (1996), 739744.Google Scholar
[18]Lai, S.N. and Singh, A.K., ‘An analogue of Banach's contraction principle for 2-metric spaces’, Bull. Austral. Math. Soc. 18 (1978), 137143.Google Scholar
[19]Malčeski, A.Strong n-convex n-normed spaces’, Mat. Bilten 21 (1997), 81102.Google Scholar
[20]Malčeski, A., ‘l as n-normed space’, Mat. Bilten 21 (1997), 103110.Google Scholar
[21]Misiak, A., ‘n-inner product spaces’, Math. Nachr. 140 (1989), 299319.CrossRefGoogle Scholar
[22]Naidu, S.V.R. and Prasad, J. Rajendra, ‘Fixed point theorems in 2-metric spaces’, Indian J. Pure Appl. Math. 17 (1986), 974993.Google Scholar
[23]Siddiqi, A.H., Gupta, S.C. and Siddiqi, A., ‘On ultra m-metric spaces and non-Archimedean m-normed spaces’, Indian J. Math. 31 (1989), 3139.Google Scholar
[24]Suyalatu, , ‘n-normed spaces and bounded n-linear functionals’, Natur. Sci. J. Harbin Normal Univ. 6 (1990), 2024.Google Scholar
[25]Tewari, B.M.L. and Singh, S.L., ‘Fixed point theorems for 2-metric spaces’, Indian J. Math. 25 (1983), 161164.Google Scholar