Necessary and sufficient optimality conditions of a design decision on the structure of a local computer network

1999 ◽  
Vol 35 (5) ◽  
pp. 797-801
Author(s):  
N. K. Pechurin ◽  
L. P. Kondratova
Author(s):  
Nazih Abderrazzak Gadhi

In this work, some counterexamples are given to refute some results in the paper by Kohli (RAIRO-Oper. Res. 53, 1617-1632, 2019). We correct the faulty in some of his results.


Author(s):  
G. Golovko ◽  
Ye. Chaika ◽  
M. Luchko

The subject matter of the article is the process of matching the optimal solutions for improving the local computer network. The purpose is to update the existing local computer network of the enterprise Magnetic Corporation. The task is to justify the opportunity for using various types of network applications and components. Having applied knowledge about the characteristics of each viewing items’ properties, the obtained results are used to enter them into a single network. To summarize the conclusions: in order to maximize network productivity the local computer network with a dedicated server was selected, i.e. star topology, that has led to an increase in network security and an increase in the speed of fixing problems in any workstation without affecting the overall network health.


Computer ◽  
1982 ◽  
Vol 15 (4) ◽  
pp. 55-66 ◽  
Author(s):  
Kai Hwang ◽  
Croft ◽  
Goble ◽  
Wah ◽  
Briggs ◽  
...  

Author(s):  
H. Xu ◽  
A. M. Rubinov ◽  
B. M. Glover

AbstractWe investigate the strict lower subdifferentiability of a real-valued function on a closed convex subset of Rn. Relations between the strict lower subdifferential, lower subdifferential, and the usual convex subdifferential are established. Furthermore, we present necessary and sufficient optimality conditions for a class of quasiconvex minimization problems in terms of lower and strict lower subdifferentials. Finally, a descent direction method is proposed and global convergence results of the consequent algorithm are obtained.


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