Birkhoff Centre of a Semi Group

2003 ◽  
Vol 26 (4) ◽  
pp. 659-667 ◽  
Author(s):  
U. M. Swamy ◽  
Ch. Pragathi
Keyword(s):  
Semi Group

Sub-normed Z-linear Spaces on Commutative Semi-group

2012 ◽  
Vol 14 (2) ◽  
pp. 157
Author(s):  
Yanqiu WANG ◽  
Huaxin ZHAO
Keyword(s):  
Semi Group ◽  
Linear Spaces

Exponential formulae for semi-group of operators in terms of the resolvent

1971 ◽  
Vol 9 (4) ◽  
pp. 541-553 ◽  
Author(s):  
Z. Ditzian
Keyword(s):  
Semi Group

The relativistic semi-group, Lorentz group, and tachyons. II

1976 ◽  
Vol 19 (5) ◽  
pp. 616-619
Author(s):  
V. V. Yudin
Keyword(s):  
Lorentz Group ◽  
Semi Group

Perturbation theory and finite Markov chains

1968 ◽  
Vol 5 (2) ◽  
pp. 401-413 ◽  
Author(s):  
Paul J. Schweitzer
Keyword(s):  
Perturbation Theory ◽  
Markov Chain ◽  
Markov Chains ◽  
Stationary Distribution ◽  
Fundamental Matrix ◽  
Transition Probabilities ◽  
Semi Group ◽  
Partial Derivatives ◽  
Finite Markov Chains ◽  
Derivatives Of

A perturbation formalism is presented which shows how the stationary distribution and fundamental matrix of a Markov chain containing a single irreducible set of states change as the transition probabilities vary. Expressions are given for the partial derivatives of the stationary distribution and fundamental matrix with respect to the transition probabilities. Semi-group properties of the generators of transformations from one Markov chain to another are investigated. It is shown that a perturbation formalism exists in the multiple subchain case if and only if the change in the transition probabilities does not alter the number of, or intermix the various subchains. The formalism is presented when this condition is satisfied.

Left semi-perfect abundant semi-groups of type W

2005 ◽  
Vol 135 (3) ◽  
pp. 603-614 ◽  
Author(s):  
Xiaojiang Guo ◽  
K. P. Shum
Keyword(s):  
Normal Band ◽  
Semi Group ◽  
Characterization Theorems

We call a quasi-adequate semi-group whose set of idempotents forms a left [right] quasi-normal band a left [right] semi-perfect abundant semi-group. After obtaining some characterization theorems of such quasi-adequate semi-groups, we establish a structure for left [right] semi-perfect abundant semi-groups of type W. Our results generalize and strengthen the results of El-Qallali and Fountain on quasi-adequate semi-groups.

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