2 citations · 2 across the 8 of their papers we have counts for
8 papers
Reciprocal Convex Costs for Ratio Matching: Functional-Equation Characterization and Decision Geometry
Jonathan Washburn, Amir Rahnamai Barghi
We study ratio-induced mismatch costs of the form , built from positive scale maps and and a penalty $J:(0,\infty…
The Coercive Projection Theorem for Canonical Reciprocal Costs
Jonathan Washburn, Amir Rahnamai Barghi
We develop a finite-data framework for certifying \emph{zero-defect} (neutral) configurations of positive vectors under the canonical separable reciprocal cost. We show that this s…
On Characters of a Class of P-polynomial table algebras and applications
Masoumeh Koohestani, Amir Rahnamai Barghi, Amirhossein Amiraslani
In this paper, we study the characters of homogeneous monotonic P-polynomial table algebras with finite dimension d>=5. We then apply them to association schemes. To this end, we d…
On circular-arc graphs with association schemes
Fatemeh Raei Barandagh, Amir Rahnamai Barghi
In this paper, we give a characterization of the class of all circular-arc graphs whose schemes are association. Moreover, all association schemes which are the scheme of a circula…
Burnside-Brauer Theorem and Character Products in Table Algebras
J. Bagherian, A. Rahnamai Barghi
In this paper, we first show that the irreducible characters of a quotient table algebra modulo a normal closed subset can be viewed as the irreducible characters of the table alge…
Standard Character Condition for C-algebras
J. Bagherian, A. Rahnamai Barghi
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…
The basis digraphs of p-schemes
Ilia Ponomarenko, Amir Rahnamai Barghi
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…
On amorphic C-algebras
Ilia Ponomarenko, A. Rahnamai Barghi
An amorphic association scheme has the property that any of its fusion is also an association scheme. In this paper we generalize the property to be amorphic to an arbitrary C-alge…