Harmonic vector excitation coding of speech at 2.0 kbps

2002 ◽  
Author(s):  
L. Nishiguchi ◽  
K. Iijima ◽  
J. Matsumoto
Keyword(s):  
Harmonic Vector

Harmonic Vector Excitation Coding Of Speech At 2.0-4.0 Kbps

1998 ◽  
Author(s):  
Nishiguchi ◽  
Iijima ◽  
Inoue ◽  
Maeda ◽  
Matsumoto
Keyword(s):  
Harmonic Vector

Twisted Sasakian Metric on the Tangent Bundle and Harmonicity

2021 ◽  
Vol 62 ◽  
pp. 53-66
Author(s):  
Fethi Latti ◽  
◽  
Hichem Elhendi ◽  
Lakehal Belarbi
Keyword(s):  
Riemannian Manifold ◽  
Vector Field ◽  
Tangent Bundle ◽  
Vector Fields ◽  
Sufficient Conditions ◽  
Harmonic Vector ◽  
New Class ◽  
Necessary And Sufficient ◽  
Sasakian Metric ◽  
Harmonic Vector Fields

In the present paper, we introduce a new class of natural metrics on the tangent bundle $TM$ of the Riemannian manifold $(M,g)$ denoted by $G^{f,h}$ which is named a twisted Sasakian metric. A necessary and sufficient conditions under which a vector field is harmonic with respect to the twisted Sasakian metric are established. Some examples of harmonic vector fields are presented as well.

On annihilators of harmonic vector fields

1998 ◽  
Vol 92 (1) ◽  
pp. 3600-3612
Author(s):  
B. Gustafsson ◽  
D. Khavinson
Keyword(s):  
Vector Fields ◽  
Harmonic Vector ◽  
Harmonic Vector Fields

Harmonic vector excitation coding of speech

2006 ◽  
Vol 27 (6) ◽  
pp. 375-383
Author(s):  
Masayuki Nishiguchi
Keyword(s):  
Harmonic Vector

scholarly journals SOME VECTORS FIELDS ON THE TANGENT BUNDLE WITH A SEMI-SYMMETRIC METRIC CONNECTION

2021 ◽  
pp. 669
Author(s):  
Aydin Gezer ◽  
Erkan Karakas
Keyword(s):  
Riemannian Manifold ◽  
Tangent Bundle ◽  
Vector Fields ◽  
Harmonic Vector ◽  
Metric Connection ◽  
Projective Vector ◽  
Harmonic Vector Fields

Let $M$ is a (pseudo-)Riemannian manifold and $TM$ be its tangent bundlewith the semi-symmetric metric connection $\overline{\nabla }$. In thispaper, we examine some special vector fields, such as incompressible vectorfields, harmonic vector fields, concurrent vector fields, conformal vectorfields and projective vector fields on $TM$ with respect to thesemi-symmetric metric connection $\overline{\nabla }$ and obtain someproperties related to them.

Structuring Harmonic Vector-Vortex Beams in the Extreme Ultraviolet

2021 ◽  
Author(s):  
Alba de las Heras ◽  
Alok Kumar Pandey ◽  
Julio San Román ◽  
Javier Serrano ◽  
Elsa Baynard ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Harmonic Vector ◽  
Vortex Beams
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