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Variational Minimizing Parabolic Orbits for the Restricted 3-Body Problems
Restricted 3-Body Problems Variational Minimizers Odd Parabolic Orbits
2011/10/26
The Least Action Principle is the simplest and the most nature rule in the world. Using variational minimizing methods and the implicit symmetries, we prove the existence of the odd symmetric paraboli...
Norm closures of orbits of bounded operators
group action closure of orbit index of operator Fredholm operators semi-Fredholm operators closed range operators
2011/8/29
Abstract: To every bounded linear operator $A$ between Hilbert spaces $\mathcal{H}$ and $\mathcal{K}$ three cardinals $\iota_r(A)$, $\iota_i(A)$ and $\iota_f(A)$ and a binary number $\iota_b(A)$ are a...