Results 21 to 30 of about 2,005 (214)

AUTOMORPHISMS OF DISTANCE-REGULAR GRAPH WITH INTERSECTION ARRAY {39; 36; 4; 1; 1; 36}

Ural Mathematical Journal, 2018
Makhnev and Nirova have found intersection arrays of distance-regular graphs with no more than \(4096\) vertices, in which \(\lambda=2\)  and \(\mu=1\). They proposed the program of investigation of distance-regular graphs with \(\lambda=2\) and \(\mu=1\)
Konstantin S. Efimov, Aleksandr A. Makhnev   +1 more
doaj   +1 more source

Regular equivalence and strongly regular equivalence on multiplicative ternary hyperring [PDF]

Journal of Hyperstructures, 2015
We introduce the notion of a multiplicative ternary hyperring, consider regular equivalences and strongly regular equivalences of a multiplicative ternary hyperring and investigate their properties.
Md Salim Masud Molla, T. Chanda, T. K. Dutta   +2 more
doaj   +1 more source

Weakly and Strongly Irreversible Regular Languages [PDF]

Electronic Proceedings in Theoretical Computer Science, 2017
Finite automata whose computations can be reversed, at any point, by knowing the last k symbols read from the input, for a fixed k, are considered. These devices and their accepted languages are called k-reversible automata and k-reversible languages ...
Giovanna J. Lavado, Giovanni Pighizzini, Luca Prigioniero   +2 more
doaj   +1 more source

AUTOMORPHISMS OF DISTANCE-REGULAR GRAPH WITH INTERSECTION ARRAY {25; 16; 1; 1; 8; 25}

Ural Mathematical Journal, 2017
Makhnev and Samoilenko have found parameters of strongly regular graphs with no more than 1000 vertices, which may be neighborhoods of vertices in antipodal distance-regular graph of diameter 3 and with  \(\lambda=\mu\).
Konstantin S. Efimov, Alexander A. Makhnev   +1 more
doaj   +1 more source

On Generalized Simple P-injective Rings [PDF]

Al-Rafidain Journal of Computer Sciences and Mathematics, 2005
  In this work, we study generalized simple P-injective rings. New properties of such rings are given, and a characterization of division rings and strongly regular rings in terms of GSP rings is obtained.  
Nazar Shuker, Raida Mahmood
doaj   +1 more source

SOME RESULTS ON STRONGLY π-REGULAR RIN

Tikrit Journal of Pure Science, 2023
In this paper we study the strongly - regular ring (for short   st. -reg. rg.) and some properties also give some new results of st.  -reg. rg. and its connection with other rings.
Sinan O. Al-Salihi, Emad I. Jassim
doaj   +1 more source

The lower bound for number of hexagons in strongly regular graphs with parameters $\lambda=1$ and $\mu=2$ [PDF]

E-Journal of Analysis and Applied Mathematics
The existence of $srg(99,14,1,2)$ has been a question of interest for several decades to the moment. In this paper, we consider the structural properties in general for the family of strongly regular graphs with parameters $\lambda =1$ and $\mu =2$.
Reimbay Reimbayev
doaj   +1 more source

Strong Topological Regularity and Weak Regularity of Banach Algebras [PDF]

Journal of Sciences, Islamic Republic of Iran, 2011
In this article we study two different generalizations of von Neumann regularity, namely strong topological regularity and weak regularity, in the Banach algebra context.
G.H. Esslamzadeh
doaj  

Maximal Generalization of Pure Ideals [PDF]

Al-Rafidain Journal of Computer Sciences and Mathematics, 2008
The purpose of this paper is to study the class of the rings for which every maximal right ideal is left GP-ideal. Such rings are called MGP-rings and give some of their basic properties as well as the relation between MGP-rings, strongly regular ring ...
Raida Mahmood, Awreng Mahmood
doaj   +1 more source

On GP- Ideals [PDF]

Al-Rafidain Journal of Computer Sciences and Mathematics, 2009
In this work we give some new properties of GP- ideals as well as the relation between GP- ideals, - π regular and simple ring. Also we consider rings with every principal ideal are GP- ideals and establish relation between such rings with strongly ...
Raida Mahmood, Shahla Khalil
doaj   +1 more source