scholarly journals Variational proof of the existence of brake orbits in the planar 2-center problem

2019 ◽  
Vol 39 (10) ◽  
pp. 5785-5797
Author(s):  
Yuika Kajihara ◽  
◽  
Misturu Shibayama
Keyword(s):  
Center Problem ◽  
Brake Orbits

scholarly journals A New Normal Form for Monodromic Nilpotent Singularities of Planar Vector Fields

2021 ◽  
Vol 18 (5) ◽  
Author(s):  
Antonio Algaba ◽  
Cristóbal García ◽  
Jaume Giné
Keyword(s):  
Normal Form ◽  
Vector Fields ◽  
New Technique ◽  
Center Problem ◽  
New Normal ◽  
Planar Vector Fields ◽  
Planar Vector ◽  
A New Technique

AbstractIn this work, we present a new technique for solving the center problem for nilpotent singularities which consists of determining a new normal form conveniently adapted to study the center problem for this singularity. In fact, it is a pre-normal form with respect to classical Bogdanov–Takens normal formal and it allows to approach the center problem more efficiently. The new normal form is applied to several examples.

A faster diameter problem algorithm for a chordal graph, with a connection to its center problem

2021 ◽  
Vol 344 (5) ◽  
pp. 112326
Author(s):  
Steve Seif
Keyword(s):  
Chordal Graph ◽  
Center Problem

scholarly journals The probabilistic p -center problem: Planning service for potential customers

2017 ◽  
Vol 262 (2) ◽  
pp. 509-520 ◽  
Author(s):  
Luisa I. Martínez-Merino ◽  
Maria Albareda-Sambola ◽  
Antonio M. Rodríguez-Chía
Keyword(s):  
Center Problem ◽  
Planning Service ◽  
Potential Customers

Multiplicity of brake orbits on compact convex symmetric reversible hypersurfaces in R 2n for n ⩾4

2013 ◽  
Vol 107 (1) ◽  
pp. 1-38 ◽  
Author(s):  
Duanzhi Zhang ◽  
Chungen Liu
Keyword(s):  
Compact Convex ◽  
Brake Orbits

Brake orbits type solutions to some class of semilinear elliptic equations

2007 ◽  
Vol 30 (1) ◽  
pp. 51-83 ◽  
Author(s):  
Francesca Alessio ◽  
Piero Montecchiari
Keyword(s):  
Elliptic Equations ◽  
Semilinear Elliptic Equations ◽  
Brake Orbits ◽  
Semilinear Elliptic

scholarly journals The multi-period p-center problem with time-dependent travel times

2021 ◽  
pp. 105487
Author(s):  
Tobia Calogiuri ◽  
Gianpaolo Ghiani ◽  
Emanuela Guerriero ◽  
Emanuele Manni
Keyword(s):  
Time Dependent ◽  
Center Problem ◽  
Travel Times

The Center Problem

1915 ◽  
Vol 2 (23) ◽  
pp. 539-540
Keyword(s):  
Center Problem

Simple $$O(n~log^{2}~n)$$ Algorithms for the Planar 2-Center Problem

2017 ◽  
pp. 481-491 ◽  
Author(s):  
Xuehou Tan ◽  
Bo Jiang
Keyword(s):  
Center Problem
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