a-Numerical range on $$C^*$$-algebras

Positivity ◽  
2021 ◽  
Author(s):  
Abdellatif Bourhim ◽  
Mohamed Mabrouk
Keyword(s):  
Numerical Range ◽  
C Algebras

Birkhoff–James orthogonality and algebraic maximal numerical range in C*-algebras

2021 ◽  
pp. 1-12
Author(s):  
El Hassan Benabdi ◽  
Abderrahim Baghdad ◽  
Mohamed Chraibi Kaadoud
Keyword(s):  
Numerical Range ◽  
C Algebras ◽  
James Orthogonality

scholarly journals Numerical Range-preserving Linear Maps Between C*- Algebras

2010 ◽  
Vol 01 (03) ◽  
pp. 160-166
Author(s):  
A. Taghavi ◽  
R. Parvinianzadeh
Keyword(s):  
Numerical Range ◽  
C Algebras ◽  
Linear Maps

An Introduction to K-Theory for C*-Algebras

2000 ◽  
Author(s):  
M. Rørdam ◽  
F. Larsen ◽  
N. Laustsen
Keyword(s):  
C Algebras ◽  
K Theory

A new method for approximation of closed convex subsets of B(H)

Filomat ◽  
2017 ◽  
Vol 31 (19) ◽  
pp. 6005-6013
Author(s):  
Mahdi Iranmanesh ◽  
Fatemeh Soleimany
Keyword(s):  
Best Approximation ◽  
Numerical Range ◽  
New Method ◽  
C Algebra ◽  
Convex Subsets

In this paper we use the concept of numerical range to characterize best approximation points in closed convex subsets of B(H): Finally by using this method we give also a useful characterization of best approximation in closed convex subsets of a C*-algebra A.

scholarly journals Optimal transport and unitary orbits in C⁎-algebras

2021 ◽  
Vol 281 (5) ◽  
pp. 109068
Author(s):  
Bhishan Jacelon ◽  
Karen R. Strung ◽  
Alessandro Vignati
Keyword(s):  
Optimal Transport ◽  
C Algebras

Non‐associative C *‐algebras

2021 ◽  
pp. 111-153
Author(s):  
Ángel Rodríguez Palacios ◽  
Miguel Cabrera García
Keyword(s):  
C Algebras

Continuity of submatrices and Ritz sets associated to a point in the numerical range

2021 ◽  
Vol 624 ◽  
pp. 1-13
Author(s):  
Kennett L. Dela Rosa ◽  
Hugo J. Woerdeman
Keyword(s):  
Numerical Range
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