scholarly journals A Short Survey on Surfaces Endowed with a Canonical Principal Direction

Author(s):  
Alev Kelleci ◽  
Mahmut Ergüt
Filomat ◽  
2017 ◽  
Vol 31 (19) ◽  
pp. 6023-6040 ◽  
Author(s):  
Alev Kelleci ◽  
Mahmut Ergüt ◽  
Nurettin Turgay

In this paper, wecharacterize and classify all surfaces endowed with canonical principal direction relative to a space-like and light-like, constant direction in the Minkowski 3-space.


Filomat ◽  
2013 ◽  
Vol 27 (5) ◽  
pp. 843-849 ◽  
Author(s):  
Ana Nistor

We characterize and classify spacelike surfaces endowed with a canonical principal direction in Minkowski 3-space E13. Under the maximality condition, a new characterization for the catenoid of the 1st kind is obtained.


2016 ◽  
Vol 290 (2-3) ◽  
pp. 248-261 ◽  
Author(s):  
A. J. Di Scala ◽  
G. Ruiz-Hernández

2008 ◽  
Vol 35 (4) ◽  
pp. 381-396 ◽  
Author(s):  
Franki Dillen ◽  
Johan Fastenakels ◽  
Joeri Van der Veken

2019 ◽  
Vol 43 (4) ◽  
pp. 1867-1877
Author(s):  
Alev KELLECİ ◽  
Nurettin Cenk TURGAY ◽  
Mahmut ERGÜT

2012 ◽  
Vol 30 (5) ◽  
pp. 382-391 ◽  
Author(s):  
Eugenio Garnica ◽  
Oscar Palmas ◽  
Gabriel Ruiz-Hernández

Author(s):  
John-Carlos Perea ◽  
Jacob E. Perea

The concepts of expectation, anomaly, and unexpectedness that Philip J. Deloria developed in Indians in Unexpected Places (2004) have shaped a wide range of interdisciplinary research projects. In the process, those terms have changed the ways it is possible to think about American Indian representation, cosmopolitanism, and agency. This article revisits my own work in this area and provides a short survey of related scholarship in order to reassess the concept of unexpectedness in the present moment and to consider the ways my deployment of it might change in order to better meet the needs of my students. To begin a process of engaging intergenerational perspectives on this subject, the article concludes with an interview with Dr. Jacob E. Perea, dean emeritus of the Graduate College of Education at San Francisco State University and a veteran of the 1969 student strikes that founded the College of Ethnic Studies at San Francisco State University.


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