Results 111 to 120 of about 38,310 (232)

A compression type mountain pass theorem in conical shells

open access: yesJournal of Mathematical Analysis and Applications, 2008
Let \(X\subset H\equiv H'\subset X'\) be the chain of two Hilbert spaces \(X\) and \(H\) with norms \(| \cdot | \) and \(\| \cdot \| \). Let \(0\neq K\subset X\) be a nonempty closed convex set such that \(\lambda u\in K\) \(\forall u\in K\) and \(\lambda\geq0\). The author studies critical points of a functional \(E\in C^1(X,\mathbb R) \) such that \((
openaire   +1 more source

A Generalized Mountain Pass Theorem

open access: yes, 2016
2010 Mathematics Subject Classification: 58E05, 58E30.
openaire   +1 more source

Tbit/s line-rate satellite feeder links enabled by coherent modulation and full-adaptive optics. [PDF]

open access: yesLight Sci Appl, 2023
Horst Y   +14 more
europepmc   +1 more source

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