Results 91 to 100 of about 11,069 (184)

A Fixed Point Theorem for Discontinuous Functions [PDF]

open access: yes
In this paper we prove the following fixed point theorem. Consider a non-empty bounded polyhedron P and a function Æ : P → P such that for every x є P for which Æ (x) ≠ x there exists δ > 0 such that for all y, z є B (x, δ) ∩ P it holds that (Æ(y)-y)2 (Æ(
Herings,Jean-Jacques   +3 more
core   +1 more source

Topological Darkness in Optical Heterostructures: Prediction and Confirmation. [PDF]

open access: yesACS Photonics, 2023
Cusworth E, Kravets VG, Grigorenko AN.
europepmc   +1 more source

A Geometric Approach to Combinatorial Fixed-Point Theorems [PDF]

open access: yes, 2013
We develop a geometric framework that unifies several different combinatorial fixed-point theorems related to Tucker's lemma and Sperner's lemma, showing them to be different geometric manifestations of the same topological phenomena.
Grant, Elyot, Ma, Will
core  

On the Six-Vertex Model's Free Energy. [PDF]

open access: yesCommun Math Phys, 2022
Duminil-Copin H   +4 more
europepmc   +1 more source

Another generalization of Brouwer’s fixed point theorem [PDF]

open access: yesProceedings of the American Mathematical Society, 1968
Henderson, David, Livesay, G. R.
openaire   +2 more sources

Pseudo-rotations of the open annulus

open access: yes, 2005
In this paper, we study pseudo-rotations of the open annulus, \emph{i.e.} conservative homeomorphisms of the open annulus whose rotation set is reduced to a single irrational number (the angle of the pseudo-rotation).
Béguin, F., Crovisier, S., Roux, F. Le
core   +1 more source

Mean Field Models to Regulate Carbon Emissions in Electricity Production. [PDF]

open access: yesDyn Games Appl, 2022
Carmona R, Dayanıklı G, Laurière M.
europepmc   +1 more source

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