activity
20042026
most citedOn stellated spheres, shellable balls, lower bounds and a combinatorial criterion for tightness

10 citations · 57 across the 24 of their papers we have counts for

collaborators

27 papers

math.CO2026

Triple arrays from ovals in finite projective planes

Sunanda Bagchi, Bhaskar Bagchi

In this paper we prove that whenever a projective plane of odd order n contains an oval, it may be used to construct a triple array with n + 1 rows, n.n columns and n(n + 1) symbol…

math.CO2023

On the structure of cellular pseudomanifolds

Bhaskar Bagchi, Basudeb Datta

In this paper we study the structure of cellular pseudomanifolds (aka abstract polytopes). These are natural combinatorial generalisations of polytopal spheres (i.e., boundary comp…

math.CO2023

Dembowski's Theorem on Finite Inversive Planes of Even Order

Bhaskar Bagchi

A remarkable theorem due to Peter Dembowski states that if is an inversive plane of even order then must be a power of two and must be the incidence system of point…

math.CO2021

Parametric restrictions on quasi-symmetric designs

Bhaskar Bagchi

In this paper, we attach several new invariants to connected strongly regular graphs (excepting conference graphs on non-square number of vertices) : one invariant called the discr…

math.ST2020

Optimality of multi-way designs

Sunanda Bagchi, Bhaskar Bagchi

In this paper we study optimality aspects of a certain type of designs in a multi-way heterogeneity setting. These are ``duals" of plans orthogonal through the block factor (POTB).…

math.ST2020★ 2 cited

Aspects of optimality of plans orthogonal through other factors

Bhaskar Bagchi, Sunanda Bagchi

The concept of orthogonality through the block factor (OTB), defined in Bagchi (2010), is extended here to orthogonality through a set (say S) of other factors. We discuss the impa…