C102 2003 11 ATS 最近の更新履歴 Hideo Fujiwara

The Beurling-Bj ¨orck space S w , as defined in 2, consists of C ∞ functions such that the functions and their Fourier transform jointly with all their derivatives decay ultrarapidly

Projection of Differential Algebras and Elimination As was indicated in 5.23, Proposition 5.22 ensures that if we know how to resolve simple basic objects, then a sequence of

Here we purpose, firstly, to establish analogous results for collocation with respect to Chebyshev nodes of first kind (and to compare them with the results of [7]) and, secondly,

All three problems (1*, 2*.1 2*.2) are open; there are conjectures which would provide complete answers to these problems and some partial results supporting these conjectures

We present sufficient conditions for the existence of solutions to Neu- mann and periodic boundary-value problems for some class of quasilinear ordinary differential equations.. We

Analogs of this theorem were proved by Roitberg for nonregular elliptic boundary- value problems and for general elliptic systems of differential equations, the mod- ified scale of

The commutative case is treated in chapter I, where we recall the notions of a privileged exponent of a polynomial or a power series with respect to a convenient ordering,

Samoilenko [4], assumes the numerical analytic method to study the periodic solutions for ordinary differential equations and their algorithm structure.. This