Generalization Approximation Spaces Using Combined Edges Systems of a finite number of undirected graphs
In this paper we will study approximate coefficients. New based on a finite family of Lower approximation and Upper approximation and we present a generalization of some concepts and definitions and boundary and we will also study the accuracy factor for this family
 K.S. Al’Dzhabri and M. F. Hani, On Certain Types of Topological Spaces Associated with Digraphs.Journal of Physics:Conference Series 1591(2020)012055.
 K.S. Al’Dzhabri and et al, DG-domination topology in Digraph. Journal of Prime Research in Mathematics 2021, 17(2), 93–100. http://jprm.sms.edu.pk/
 K.S. Al’Dzhabri, Enumeration of connected components of acyclic digraph. Journal of Discrete Mathematical Sciences and Cryptography, 2021, 24(7), 2047–2058. DOI: 10.1080/09720529.2021.1965299
 L. W. Beineke and R. J. Wilson, Topics in topological graph theory, Cambridge University Press, 2009
 F. Harary, Graph Theory (Addison-Wesley, Reading Mass, 1969).
 M. Moller, General Topology, Authors, Notes, (2007).
 M. Shokry, Approximations structures generated by trees vertices, International Journal of Engineering Science and Technology (IJEST), Vol.4 (2), February (2012), pp.406-418. 10.
 M. Shokry, Closure concepts generated by directed trees; Journal of Mathematics & Computer Sciences, Vol.21 (1), (2010), pp.45-51.
 S.S. Ray, Graph Theory with Algorithms and its Applications: In Applied Sciences and Technology, Springer, New Delhi, (2013).
Copyright (c) 2023 Hussein R. Jaffer
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.