Logarithmic transformations on elliptic fiber spaces II

1990 ◽  
Vol 288 (1) ◽  
pp. 559-570 ◽  
Author(s):  
Yoshio Fujimoto
Keyword(s):  
Elliptic Fiber

scholarly journals TOWARDS THE STANDARD MODEL SPECTRUM FROM ELLIPTIC CALABI–YAU MANIFOLDS

2004 ◽  
Vol 19 (12) ◽  
pp. 1987-2014 ◽  
Author(s):  
BJÖRN ANDREAS ◽  
GOTTFRIED CURIO ◽  
ALBRECHT KLEMM
Keyword(s):  
Standard Model ◽  
Global Section ◽  
Elliptic Surfaces ◽  
Spectral Cover ◽  
Elliptic Fiber ◽  
The Standard Model ◽  
Free Involution ◽  
Simply Connected ◽  
Rational Elliptic Surfaces ◽  
Standard Model Gauge Group

We show that it is possible to construct supersymmetric three-generation models with the Standard Model gauge group in the framework of non-simply-connected elliptically fibered Calabi–Yau threefolds, without section but with a bi-section. The fibrations on a cover Calabi–Yau threefold, where the model has six generations of SU(5) and the bundle is given via the spectral cover description, use a different description of the elliptic fiber which leads to more than one global section. We present two examples of a possible cover Calabi–Yau threefold with a free involution: one is a fiber product of rational elliptic surfaces dP9; another example is an elliptic fibration over a Hirzebruch surface. We compute the necessary amount of chiral matter by "turning on" a further parameter which is related to singularities of the fibration and the branching of the spectral cover.

scholarly journals Deformations of elliptic fiber bundles in positive characteristic

2013 ◽  
Vol 211 ◽  
pp. 79-108 ◽  
Author(s):  
Holger Partsch
Keyword(s):  
Deformation Theory ◽  
Positive Characteristic ◽  
Fiber Bundles ◽  
Elliptic Surfaces ◽  
Elliptic Fibrations ◽  
Elliptic Fiber

AbstractWe study the deformation theory of elliptic fiber bundles over curves in positive characteristics. As applications, we give examples of nonliftable elliptic surfaces in characteristics 2 and 3, which answer a question of Katsura and Ueno. Also, we construct a class of elliptic fibrations, whose liftability is equivalent to a conjecture of Oort concerning the liftability of automorphisms of curves. Finally, we classify deformations of bielliptic surfaces.

Seawater Temperature Measurement Based on a High-Birefringence Elliptic Fiber Sagnac Loop

2015 ◽  
Vol 27 (16) ◽  
pp. 1772-1775 ◽  
Author(s):  
Xin Wang ◽  
Hong-Juan Yang ◽  
Shan-Shan Wang ◽  
Yi-Peng Liao ◽  
Jing Wang
Keyword(s):  
Temperature Measurement ◽  
Seawater Temperature ◽  
High Birefringence ◽  
Elliptic Fiber

scholarly journals Deformations of elliptic fiber bundles in positive characteristic

2013 ◽  
Vol 211 ◽  
pp. 79-108
Author(s):  
Holger Partsch
Keyword(s):  
Deformation Theory ◽  
Positive Characteristic ◽  
Fiber Bundles ◽  
Elliptic Surfaces ◽  
Elliptic Fibrations ◽  
Elliptic Fiber

AbstractWe study the deformation theory of elliptic fiber bundles over curves in positive characteristics. As applications, we give examples of nonliftable elliptic surfaces in characteristics 2 and 3, which answer a question of Katsura and Ueno. Also, we construct a class of elliptic fibrations, whose liftability is equivalent to a conjecture of Oort concerning the liftability of automorphisms of curves. Finally, we classify deformations of bielliptic surfaces.

Study on the Shupe error of the elliptic fiber coil

2018 ◽  
Vol 57 (18) ◽  
pp. 5210 ◽  
Author(s):  
Jianhui Zhao ◽  
Fan Xu ◽  
Fan Li ◽  
Jing Xue ◽  
He Xu
Keyword(s):  
Elliptic Fiber ◽  
Fiber Coil
Sign in / Sign up

Export Citation Format

Share Document