Translates are always dense on the half line
نویسندگان
چکیده
منابع مشابه
On the Half-line
We study uniform error estimates of operational quadrature methods for nonlinear convolution equations on the half-line. Equations of this kind arise in control engineering and diffusion problems. The essential ingredients are the stability of the operational quadrature method in an L setting, which is inherited from the continuous equation by its very construction, and a theorem that says that...
متن کاملInverse Resonance Scattering on the Half Line
For the Schrr odinger operator on the half line we prove the following results: the mapping from real compactly supported potentials to the associated Jost functions (in some class of entire functions) is one-to-one and onto. Moreover, we prove that such potential is uniquely determined by its bound states and resonances.
متن کاملSuperlinear Singular Problems on the Half Line
Copyright q 2010 I. Rachůnková and J. Tomeček. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The paper studies the singular differential equation p t u′ ′ p t f u , which has a singularity at t 0. Here the existence of strictly ...
متن کاملLine Transversals to Translates of Unit Discs
Let F be a family of convex figures in the plane. We say that F has property T if there exist a line intersecting every member of F . Also, we say that the family F has property T (k) if every k−membered subfamily of F has property T . In this talk we will give some results concerning families of translates of the unit disc which have property T (3) or T (4).
متن کامل--The results of intervention studies are always reliable and generalizable to other groups?
This article has no abstract.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1969
ISSN: 0002-9939
DOI: 10.1090/s0002-9939-1969-0236609-0