scholarly journals Klein–Gordon–Maxwell–Proca type systems in the electro-magneto-static case: the high dimensional case

2019 ◽  
Vol 58 (4) ◽  
Author(s):  
Emmanuel Hebey ◽  
Pierre-Damien Thizy
Keyword(s):  
Type Systems ◽  
Dimensional Case ◽  
High Dimensional ◽  
Static Case ◽  
High Dimensional Case ◽  
Klein Gordon

scholarly journals Covariance matrix filtering with bootstrapped hierarchies

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245092
Author(s):  
Christian Bongiorno ◽  
Damien Challet
Keyword(s):  
Hierarchical Clustering ◽  
Nonlinear Filtering ◽  
Asset Price ◽  
Hierarchical Structures ◽  
Minimum Variance ◽  
Dimensional Case ◽  
High Dimensional ◽  
Dependence Structure ◽  
High Dimensional Case ◽  
Variance Risk

Cleaning covariance matrices is a highly non-trivial problem, yet of central importance in the statistical inference of dependence between objects. We propose here a probabilistic hierarchical clustering method, named Bootstrapped Average Hierarchical Clustering (BAHC), that is particularly effective in the high-dimensional case, i.e., when there are more objects than features. When applied to DNA microarray, our method yields distinct hierarchical structures that cannot be accounted for by usual hierarchical clustering. We then use global minimum-variance risk management to test our method and find that BAHC leads to significantly smaller realized risk compared to state-of-the-art linear and nonlinear filtering methods in the high-dimensional case. Spectral decomposition shows that BAHC better captures the persistence of the dependence structure between asset price returns in the calibration and the test periods.

Chaotic Dynamics in a Sine Square Map: High-Dimensional Case ( N ≥ 3)

2010 ◽  
Vol 27 (8) ◽  
pp. 080506 ◽  
Author(s):  
Xu Jie ◽  
Long Ke-Ping ◽  
Fournier-Prunaret Danièle ◽  
Taha Abdel-Kaddous ◽  
Charge Pascal
Keyword(s):  
Chaotic Dynamics ◽  
Dimensional Case ◽  
High Dimensional ◽  
High Dimensional Case

MULTIPARTY QUANTUM SECRET SHARING OF SECURE DIRECT COMMUNICATION WITH HIGH-DIMENSIONAL QUANTUM SUPERDENSE CODING

2008 ◽  
Vol 06 (06) ◽  
pp. 1155-1163 ◽  
Author(s):  
XIN WANG ◽  
YI-MIN LIU ◽  
LIAN-FANG HAN ◽  
ZHAN-JUN ZHANG
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Dimensional Case ◽  
High Dimensional ◽  
Direct Communication ◽  
Superdense Coding ◽  
High Dimensional Case

The first protocol of multiparty quantum secret sharing of secure direct communication [Phys. Lett. A342 (2005) 60] is generalized to the high-dimensional case via quantum superdense coding. The generalized protocol has the advantages of higher capacity and better security.

Klein-Gordon-Maxwell-Proca Type Systems in the Electro-Magneto-Static Case

2018 ◽  
Vol 31 (2) ◽  
pp. 119-158 ◽  
Author(s):  
Hebey Emmanuel and Thizy Pierre-Damien
Keyword(s):  
Type Systems ◽  
Static Case ◽  
Klein Gordon
Sign in / Sign up

Export Citation Format

Share Document