5 papers
Algebraic characterization of reversibility in the quaternionic Möbius group
Krishnendu Gongopadhyay, Tejbir Lohan, Abhishek Mukherjee
An element of a group is called \emph{reversible} if it is conjugate to its inverse. While reversibility in the quaternionic Möbius group has traditio…
Linear maps preserving product of involutions
Chi-Kwong Li, Tejbir Lohan, Sushil Singla
An element of the algebra of matrices over a field is called an involution if its square equals the identity matrix. Gustafson, Halmos,…
Selected facts on products of two involutions in the Riordan group
Roksana SÅowik, Tejbir Lohan
An element of a group is called \emph{reversible} if it is conjugate to its inverse, and \emph{strongly reversible} if it can be expressed as a product of two involutions. We study…
Real characters and real classes of and over discrete valuation rings
Archita Gupta, Tejbir Lohan, Pooja Singla
Let be the ring of integers of a non-archimedean local field with residue field of odd characteristic, be its maximal ideal and let $\mathfrak{o}_\ell…
Strongly reversible classes in
Krishnendu Gongopadhyay, Tejbir Lohan, Chandan Maity
An element of a group is called or if it can be expressed as a product of two involutions. We provide necessary and sufficie…