2 citations · 3 across the 10 of their papers we have counts for
11 papers
Inverse limits of various posets
Amrita Acharyya
It is known when we call a poset P, a -chain permutational poset, given a subset of permutations of the symmetric group . In this work, we use the…
Type B Set partitions, an analogue of restricted growth functions
Amrita Acharyya
In this work, we study type B set partitions for a given specific positive integer defined over . We found a few gen…
Zero-divisor graph and comaximal graph of rings of continuous functions with countable range
Rakesh Bharati, Amrita Acharyya, A. Deb Ray +1
In this paper, two outwardly different graphs, namely, the zero divisor graph and the comaximal graph of the ring of all real-valued continuo…
Power Graphs of Finite Group
Amrita Acharyya, Allen Williams
The Directed Power Graph of a group is a graph whose vertex set is the elements of the group, with an edge from to if is a power of . The \textit{Power Graph} of a g…
Zero-Divisor Graphs of , their products and
Amrita Acharyya, Robinson Czajkowski
This paper is an endeavor to discuss some properties of zero-divisor graphs of the ring , the ring of integers modulo . The zero divisor graph of a commutative rin…
block set partition patterns and statistics
Amrita Acharyya, Robinson Paul Czajkowski, Allen Richard Williams
A set partition of contains another set partition if a standardized restriction of to a subset is equivalent to . Otherwise, $σ…
Intermediate rings of complex-valued continuous functions
Amrita Acharyya, Sudip Kumar Acharyya, Sagarmoy Bag +1
Let denote the collection of all the rings between and . We show that there is a natural correlation between the absolutely c…
Cofinite Graphs and their Profinite Completions
Amrita Acharyya, Jon M. Corson, Bikash Das
We generalize the idea of cofinite groups, due to B. Hartley. First we define cofinite spaces in general. Then, as a special situation, we study cofinite graphs and their uniform c…
Cofinite Connectedness and Cofinite Group Actions
Amrita Acharyya, Jon M. Corson, Bikash Das
We have defined and established a theory of cofinite connectedness of a cofinite graph. Many of the properties of connectedness of topological spaces have analogs for cofinite conn…
Coverings of Profinite Graphs
Amrita Acharyya, Jon M. Corson, Bikash Das
We define a covering of a profinite graph to be a projective limit of a system of covering maps of finite graphs. With this notion of covering, we develop a covering theory for pro…
Cofinite Graphs and Groupoids and their Profinite Completions
Amrita Acharyya, Jon M. Corson, Bikash Das
We define cofinite graphs and cofinite groupoids in a unified way that extends the notion of cofinite groups introduced by Hartley. The common underlying structure of all these obj…