Hostname: page-component-848d4c4894-ndmmz Total loading time: 0 Render date: 2024-05-24T12:12:14.614Z Has data issue: false hasContentIssue false

A calculus approach to hyperfunctions I

Published online by Cambridge University Press:  22 January 2016

Tadato Matsuzawa*
Affiliation:
Department of Mathematics Faculty of Science Nagoya University, Chikusa-ku, Nagoya 464, Japan
Rights & Permissions [Opens in a new window]

Extract

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.

In this paper, we shall give a new characterization of hyperfunctions without algebraic method and apply to give simpler proofs to problems discussed in [3], Chapter 9. In [3], the spaces of hyperfunctions A′(K) with compact support in KRn (n ≧ 1) is considered as the dual of the space A(K) of functions which are real analytic near K. Each element u of A′(K) is characterized as a density of a double layer potential in Rn × R.

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1987

References

[ 1 ] Hashimoto, S., Matsuzawa, T. et Morimoto, Y., Opérateurs pseudodifférentiels et classes de Gevrey, Comm. Partial Differential Equations, 8(12) (1983), 12771289.CrossRefGoogle Scholar
[ 2 ] Hörmander, L., Pseudodifferential operators and hypoelliptic equations, Proc. Symp. Pure Math., 83 (1966), 129209.Google Scholar
[ 3 ] Hörmander, L., The analysis of linear partial differential operators, I, Springer-Verlag, Berlin Heidelberg New York Tokyo, 1983.Google Scholar
[ 4 ] Kashiwara, M., Introduction to the theory of hyperfunctions, In Sem. on microlocal analysis, Princeton Univ. Press, Princeton, N. J., 1979, 338.Google Scholar
[ 5 ] Komatsu, H., Ultradistributions, I; Structure theorems and a characterization, J. Fac. Sci. Univ. Tokyo, Sect. IA, 20 (1973), 25105.Google Scholar
[6] Komatsu, H., Ultradistributions, II; The kernel theorem and ultradistributions with support in a submanifold, J. Fac. Sci. Univ. Tokyo, Sect. IA, 24 (1977), 607628.Google Scholar
[7] Komatsu, H., Introduction to the theory of distributions (in Japanese), Iwanami Shoten, 1978.Google Scholar
[ 8 ] Martineau, A., Les hyperfonctions de M. Sato, Sém. Bourbaki 1960–1961, Exposé No. 214.Google Scholar
[ 9 ] Matsuzawa, T., Gevrey hypoellipticity of a class of pseudodifferential operators, to appear in Tôhoku Math. J.Google Scholar
[10] Matsuzawa, T., Hypoellipticity in ultradistribution spaces, to appear in J. Fac. Sci. Univ. Tokyo.Google Scholar
[11] Mizohata, S., On asymptotic expressions of symbols and formal symbols, Lecture Note at Kyoto Univ., 1985.Google Scholar
[12] Treves, F., Introduction to pseudodifferential and Fourier integral operators, I, Plenum Press, 1981.Google Scholar