A Circle Pattern Algorithm via Combinatorial Ricci Flows

Author(s):  
Dong-Meng Xi ◽  
Shi-Yi Lan ◽  
Dao-Qing Dai
Keyword(s):  
2021 ◽  
Vol 211 ◽  
pp. 112417
Author(s):  
Aijin Lin ◽  
Xiaoxiao Zhang

2021 ◽  
pp. 109195
Author(s):  
Zilu Ma ◽  
Yongjia Zhang
Keyword(s):  

2012 ◽  
Vol 273 (1-2) ◽  
pp. 449-460 ◽  
Author(s):  
Gregor Giesen ◽  
Peter M. Topping
Keyword(s):  

2016 ◽  
Vol 369 (1-2) ◽  
pp. 899-911 ◽  
Author(s):  
Richard H. Bamler ◽  
Davi Maximo

2003 ◽  
Vol 63 (1) ◽  
pp. 97-129 ◽  
Author(s):  
Bennett Chow ◽  
Feng Luo

2018 ◽  
Vol 1 (1) ◽  
pp. 25-31
Author(s):  
Sunarti Sunarti ◽  
Bakhrudin All Habsy

The study of Gusjigang's noble values is based on the importance of counselors to understand noble values and cultural significance in counseling practice. Gusjigang is a series of noble teachings of Sunan Kudus formulated in three main pillars of Gus is meaningful good, Ji which means skill in studying, and Gang meaningful trade. The research method used is qualitative approach with Gadamerian hermeneutical analysis type. The Gadamerian hermeneutic point of thought exists in a hermeneutic circle pattern. The circle consists of a pattern of up and down between parts and whole to understand the meaning in a text. The focus of this research is to describe the noble values in Gusjigang philosophy which then used to be an ideal personality characteristic of Indonesian cultural counselor.


2018 ◽  
Vol 11 (1) ◽  
pp. 1 ◽  
Author(s):  
Cristiano Silva ◽  
Lucas Silva ◽  
Leonardo Santos ◽  
João Sarubbi ◽  
Andreas Pitsillides

Over the past few decades, the growth of the urban population has been remarkable. Nowadays, 50% of the population lives in urban areas, and forecasts point that by 2050 this number will reach 70%. Today, 64% of all travel made is within urban environments and the total amount of urban kilometers traveled is expected to triple by 2050. Thus, seeking novel solutions for urban mobility becomes paramount for 21st century society. In this work, we discuss the performance of vehicular networks. We consider the metric Delta Network. The Delta Network characterizes the connectivity of the vehicular network through the percentage of travel time in which vehicles are connected to roadside units. This article reviews the concept of the Delta Network and extends its study through the presentation of a general heuristic based on the definition of scores to identify the areas of the road network that should receive coverage. After defining the general heuristic, we show how small changes in the score computation can generate very distinct (and interesting) patterns of coverage, each one suited to a given scenario. In order to exemplify such behavior, we propose three deployment strategies based on simply changing the computation of scores. We compare the proposed strategies to the intuitive strategy of allocating communication units at the most popular zones of the road network. Experiments show that the strategies derived from the general heuristic provide higher coverage than the intuitive strategy when using the same number of communication devices. Moreover, the resulting pattern of coverage is very interesting, with roadside units deployed a circle pattern around the traffic epicenter.


2012 ◽  
Vol 09 (05) ◽  
pp. 1250041 ◽  
Author(s):  
SERGIU I. VACARU

There were elaborated different models of Finsler geometry using the Cartan (metric compatible), or Berwald and Chern (metric non-compatible) connections, the Ricci flag curvature, etc. In a series of works, we studied (non)-commutative metric compatible Finsler and non-holonomic generalizations of the Ricci flow theory [see S. Vacaru, J. Math. Phys. 49 (2008) 043504; 50 (2009) 073503 and references therein]. The aim of this work is to prove that there are some models of Finsler gravity and geometric evolution theories with generalized Perelman's functionals, and correspondingly derived non-holonomic Hamilton evolution equations, when metric non-compatible Finsler connections are involved. Following such an approach, we have to consider distortion tensors, uniquely defined by the Finsler metric, from the Cartan and/or the canonical metric compatible connections. We conclude that, in general, it is not possible to elaborate self-consistent models of geometric evolution with arbitrary Finsler metric non-compatible connections.


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