Results 81 to 90 of about 2,583,298 (291)

Smarandache Curves Of Null Quaternionic Curves In Minkowski 3-Space

MANAS: Journal of Engineering, 2018
Bu çalışmada, E semi-Öklidyen uzaydaki null kuaterniyonik eğrilerin Smarandache eğrilerini tanımlarız ve null kuaterniyonik eğrilerin eğriliklerinin, Smarandache eğriler için bazı özelliklere sahip olduğunu elde ...
openaire   +4 more sources

Null surfaces of null Cartan curves in Anti-de Sitter 3-space

The Journal of Nonlinear Sciences and Applications, 2017
Summary: In this paper, we consider the null surfaces of null Cartan curves in Anti-de Sitter 3-space and making use of singularity theory, we classify the singularities of the null surfaces and investigate the relationships between singularities of the null surfaces and differential geometric invariants of null Cartan curves in Anti-de Sitter 3-space.
Zhao, Guangyu, Pei, Donghe, Li, Yanlin, Wang, Zhigang   +3 more
openaire   +3 more sources

On Ruled Surfaces with Pseudo Null Base Curve in Minkowski 3-Space [PDF]

, 2016
Nesovic, Emilija/0000-0003-3600-0486; Ozturk, Ufuk/0000-0002-8800-7869In this paper, we classify the ruled surfaces with a pseudo null base curve in Minkowski 3-space as spacelike, timelike and lightlike surfaces and obtain the corresponding striction ...
Ilarslan, Kazim, Ozturk, Ufuk, Ozturk, Esra B. Koc, Nesovic, Emilija   +3 more
core  

On generalized null Mannheim curves in E24

, 2021
In the present paper, we introduce the notion of Cartan-framed generalized null Mannheim curves in four-dimensional semi-Euclidean space with index 2, E24.
İlarslan, Kazım, Kazim İlarslan, Aslan, Nihal Kılıç, Nihal Kılıç Aslan   +3 more
core   +1 more source

Subjective Cognitive Concerns and Cognitive Trajectories in Parkinson's Disease: Biomarker Impact

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the relationship of subjective cognitive concerns (SCC) with biomarkers of Alzheimer's disease (AD), neurodegeneration, and Parkinson's disease (PD) and domain‐specific cognitive trajectories among cognitively unimpaired persons with de novo PD. Method Cognitively unimpaired participants with SCC (n = 294) and without SCC (
Francesca V. Lopez, Fareshte Erani, Katherine J. Bangen, David G. Coughlin, Douglas Galasko, Kelsey R. Thomas   +5 more
wiley   +1 more source

Semiclassical spectrum for BMN string in Sch 5 × S 5

Journal of High Energy Physics, 2017
We investigate the algebraic curve for string in Sch 5 × S 5. We compute the semiclassical spectrum for BMN string in Sch 5 × S 5 from the algebraic curve.
Hao Ouyang
doaj   +1 more source

Anticoagulation Treatment Response Among Phenotypic ESUS Clusters: Evidence From CASPR

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate treatment effect heterogeneity across phenotypic clusters of patients with cryptogenic embolic stroke using causal inference methods. Methods From a retrospective, multicenter cohort of patients with cryptogenic embolic stroke, we estimated the treatment effect of anticoagulation versus antiplatelet therapy in patients ...
Elena Badillo Goicoechea, Patrick Ellsworth, James E. Siegler, James R. Brorson, Christina M. Lineback, Frank G. Conyers, Deborah Kerrigan, Kelsey Eklund, Shadi Yaghi, Farid Khasiyev, Emiliya Melkumova, Collin J. Culbertson, Marissa D'Souza, Dinesh V. Jillella, Patrick Glover, Hassan Aboul‐Nour, Fadi Nahab, Mahan Shahrivari, Simona Nedelcu, David S. Liebeskind, Matthew M. Smith, Aaron Rothstein, Anna Bowman, Alicia Zha, Narendra Kala, Ahmad Abu Qdais, Sami Al Kasab, Mudassir Farooqui, Diana Rojas‐Soto, Yasmin Aziz, Franziska Herpich, Jean‐Philippe Daniel, Sean L. Thompson, Vivek Patel, Thanh N. Nguyen, Siddharth Sehgal, Wenzheng Yu, Wayneho Kam, Russel Van Coevering, Oana M. Dumitrascu, Muhammad Alvi, Balaji Krishnaiah, Setareh Salehi Omran, Guillermo Linares, Eesha Singh, Hamid Ali, Mary Penckofer, Jesse M. Thon, Shani Mannion, Dalia Chahien, Lucia Chen, Fawad Talat, Mehdi Abbasi, Richa Sharma   +53 more
wiley   +1 more source

Cartan Clad Helices and Null Darboux Developable Surfaces in Minkowski 3-Space

Mathematics
In this paper, we study two special null Cartan curves in Minkowski 3-space, namely Cartan clad helices and Cartan g-clad helices, which are generalizations of the notions of null helices and Cartan slant helices.
Hanrui Zhao, Jie Huang
doaj   +1 more source

On the Involute-Evolute of the Pseudonull Curve in Minkowski 3-Space

Journal of Applied Mathematics, 2013
We have generalized the involute and evolute curves of the pseudonull curves in ; that is, is a spacelike curve with a null principal normal. Firstly, we have shown that there is no involute of the pseudonull curves in .
Ufuk Ozturk, Esra Betul Koc Ozturk, Kazim Ilarslan   +2 more
doaj   +1 more source

Null Curves of Constant Breadth in Minkowski 4-Space

Communications Faculty Of Science University of Ankara Series A1Mathematics and Statistics, 2018
Summary: In this paper, we define null curves of constant breadth in Minkowski 4-space and obtain a characterization of these curves. Also we give an example for such curves.
Altunkaya, Bülent, Aksoyak, Ferdağ Kahraman   +1 more
openaire   +4 more sources