#### Filter Results:

- Full text PDF available (11)

#### Publication Year

2004

2015

- This year (0)
- Last 5 years (2)
- Last 10 years (9)

#### Publication Type

#### Co-author

#### Journals and Conferences

#### Method

#### Organism

Learn More

- Amir Rahnamai Barghi, Ilia Ponomarenko
- Electr. J. Comb.
- 2009

The symmetric m-th power of a graph is the graph whose vertices are m-subsets of vertices and in which two m-subsets are adjacent if and only if their symmetric difference is an edge of the originalâ€¦ (More)

We introduce a concept of cyclotomic association scheme over a finite near-field K. It is proved that any isomorphism of two such nontrivial schemes is induced by a suitable element of the groupâ€¦ (More)

- Fateme Raei Barandagh, Amir Rahnamai Barghi
- Electr. J. Comb.
- 2013

Let n > 1 be an integer and p be a prime number. Denote by Cpn the class of non-thin association p-schemes of degree pn. A sharp upper and lower bounds on the rank of schemes in Cpn with a certainâ€¦ (More)

- Amir Rahnamai Barghi, Ilia Ponomarenko
- Graphs and Combinatorics
- 2009

It is proved that association schemes with bipartite basis graphs are exactly 2-schemes. This result follows from a characterization of p-schemes for an arbitrary prime p in terms of basis digraphs.

Suppose that G is a Â…nite solvable group which has an irreducible character which vanishes on exactly one conjugacy class. Then we show that G has a homomorphic image which is a nontrivialâ€¦ (More)

Let G be a finite group and H be a subgroup. We say that H is degree homogeneous if, for each Ï‡ âˆˆ Irr(G), all the irreducible constituents of the restriction Ï‡H have the same degrees. Subgroups whichâ€¦ (More)

It is well known that the adjacency algebra of an association scheme has the standard character. In this paper we first define the concept of standard character for C-algebras and we say that aâ€¦ (More)

- Fatemeh RAEI BARANDAGH, Amir Rahnamai Barghi
- 2015

Let p and n > 1 be a prime number and an integer, respectively. In this paper, first we show that any p -scheme whose thin radical and thin residue are equal is isomorphic to a fission of the wreathâ€¦ (More)

- Amir Rahnamai Barghi, Javad Bagherian
- Electr. J. Comb.
- 2010

It is well known that the complex adjacency algebra A of an association scheme has a specific module, namely the standard module, that contains the regular module of A as a submodule. The characterâ€¦ (More)

- Javad Bagherian, Amir Rahnamai Barghi
- Electr. J. Comb.
- 2011

In the character theory of finite groups the Burnside-Brauer Theorem is a wellknown result which deals with products of characters in finite groups. In this paper, we first define the characterâ€¦ (More)