منابع مشابه
An Improved Version of Poincaré-Dulac Theorem for Improved Nilpotent Normal Forms
An improved version of the well-known Poincaré-Dulac’s normal form theorem is first proposed. It is shown that, for a nonlinear vector field, a normal form near a singular point can always be chosen so that the number of nonlinear components is at most equal to the number of Jordan blocks in the normalized leading matrix, thus leading to the “simplest” form in which a formal vector field can be...
متن کاملAN LP-LQ-VERSION OF MORGAN’S THEOREM FOR THE GENERALIZED BESSEL TRANSFORM
n this article, we prove An Lp-Lq-version of Morgan’s theorem for the generalized Bessel transform.
متن کاملAn intuitionistic version of Ramsey Theorem (italian version)
RIASSUNTO. Il teorema di Ramsey [6] per coppie e’ provabile classicamente ma non intuizionisticamente [2]. In questa nota mostriamo che Ramsey si puo’ rienunciare in una forma intuizionisticamente provabile, informativa (o quanto meno priva di negazioni), e classicamente equivalente all’originale. A differenza di precedenti tentativi, non utilizziamo ne’ il noncontroesempio come in [1], [5], ne...
متن کاملAn Intuitionistic Version of Cantor's Theorem
An intuitionistic version of Cantor’s theorem, which shows that there is no surjective function from the type of the natural numbers N into the type N → N of the functions from N into N , is proved within MartinLöf’s Intuitionistic Type Theory with the universe of the small types. Mathematics Subject Classification: 03B15, 03B20.
متن کاملAn Approximate, Multivariable Version of Specht’s Theorem
In this paper we provide generalizations of Specht’s Theorem which states that two n× n matrices A and B are unitarily equivalent if and only if all traces of words in two non-commuting variables applied to the pairs (A, A∗) and (B, B∗) coincide. First, we obtain conditions which allow us to extend this to simultaneous similarity or unitary equivalence of families of operators, and secondly, we...
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: Discrete Mathematics
سال: 1976
ISSN: 0012-365X
DOI: 10.1016/0012-365x(76)90083-2