Amit Maji

activity

20132023

most citedDifference Sequence Spaces Derived by Using Generalized Means

4 citations · 6 across the 12 of their papers we have counts for

collaborators

16 papers

math.FA2023

Wold decomposition for isometries with equal range

Satyabrata Majee, Amit Maji

Let $n \geq 2$ , and let $V = (V_{1}, \dots, V_{n})$ be an $n$ -tuple of isometries acting on a Hilbert space $H$ . We say that $V$ is an $n$ -tuple of isometries with equal range i…

math.FA2022

On decomposition for pairs of twisted contractions

Satyabrata Majee, Amit Maji

This paper presents Wold-type decomposition for various pairs of twisted contractions on Hilbert spaces. As a consequence, we obtain Wold-type decomposition for pairs of doubly twi…

math.FA2022

Numerical radius and Berezin number inequality

Satyabrata Majee, Amit Maji, Atanu Manna

We study various inequalities for numerical radius and Berezin number of a bounded linear operator on a Hilbert space. It is proved that the numerical radius of a pure two-isometry…

math.FA2022

Wold-type decomposition for $U_{n}$ -twisted contractions

Satyabrata Majee, Amit Maji

Let $n > 1$ , and ${U_{ij}}$ for $1 \leq i < j \leq n$ be $(2 n)$ commuting unitaries on a Hilbert space $H$ such that $U_{j i} := U_{ij}^{*}$ . An $n$ -tuple of contracti…

math.FA2022

Orlicz extension of Numerical radius inequalities

Amit Maji, Atanu Manna, Ram Mohapatra

In this paper, we achieve new and improved numerical radius inequalities of operators defined on a Hilbert space by using Orlicz function and Hermite-Hadamard inequality. The upper…

math.FA2021

Doubly commuting mixed invariant subspaces in the polydisc

Amit Maji, Sankar T R

We obtain a complete characterization for doubly commuting mixed invariant subspaces of the Hardy space over the unit polydisc. We say a closed subspace $Q$ of $H^2(\math…

math.FA2017

Characterization of Invariant subspaces in the polydisc

Amit Maji, Aneesh Mundayadan, Jaydeb Sarkar +1

We give a complete characterization of invariant subspaces for $(M_{z_{1}}, \dots, M_{z_{n}})$ on the Hardy space $H^{2} (D^{n})$ over the unit polydisc $D^{n}$ in $\mathbb…

math.FA2017

Pairs of commuting isometries - I

Amit Maji, Jaydeb Sarkar, Sankar T. R

We present an explicit version of Berger, Coburn and Lebow's classification result for pure pairs of commuting isometries in the sense of an explicit recipe for constructing pairs…

math.FA2016

Toeplitz and Asymptotic Toeplitz operators on $H^{2} (D^{n})$

Amit Maji, Jaydeb Sarkar, Srijan Sarkar

We initiate a study of asymptotic Toeplitz operators on the Hardy space $H^{2} (D^{n})$ (over the unit polydisc $D^{n}$ in $C^{n}$ ). We also study the Toeplitz op…

math.FA2016

Factorizations of Characteristic Functions

Kalpesh J. Haria, Amit Maji, Jaydeb Sarkar

Let $A = (A_{1}, \dots, A_{n})$ and $B = (B_{1}, \dots, B_{n})$ be row contractions on $H_{1}$ and $H_{2}$ , respectively, and $X$ be a row operator from $\oplus_{i=1}^n \…

math.FA2014★ 1 cited

On some geometric properties of generalized Musielak-Orlicz sequence space and corresponding operator ideals

Amit Maji, P. D. Srivastava

Let $Φ = (ϕ_{n})$ be a Musielak-Orlicz function, $X$ be a real Banach space and $A$ be any infinite matrix. In this paper, a generalized vector-valued Musielak-Orlicz sequence spa…

math.FA2013

Some Paranormed Difference Sequence Spaces of Order $m$ Derived by Generalized Means and Compact Operators

Amit Maji, P. D. Srivastava

We have introduced a new sequence space $l (r, s, t, p; Δ^{(m)})$ combining by using generalized means and difference operator of order $m$ . We have shown that the space $l(r, s, t,…

math.FA2013★ 4 cited

Difference Sequence Spaces Derived by Using Generalized Means

Atanu Manna, Amit Maji, P. D. Srivastava

This paper deals with new sequence spaces $X (r, s, t; Δ)$ for $X \in {l_{\infty}, c, c_{0}}$ defined by using generalized means and difference operator. It is shown that these spaces…

math.FA2013★ 1 cited

Some Paranormed Difference Sequence Spaces Derived by Using Generalized Means

Atanu Manna, Amit Maji, P. D. Srivastava

This paper presents new sequence spaces $X (r, s, t, p; Δ)$ for $X \in {l_{\infty} (p), c (p), c_{0} (p), l (p)}$ defined by using generalized means and difference operator. It is shown t…

math.FA2013

"Some $m$ th-order Difference Sequence Spaces of Generalized Means and Compact Operators"

Amit Maji, Atanu Manna, P. D. Srivastava

In this paper, new sequence spaces $X (r, s, t; Δ^{(m)})$ for $X \in {l_{\infty}, c, c_{0}}$ defined by using generalized means and difference operator of order $m$ are introduced. It…

math.FA2013

Some $B$ -Difference Sequence Spaces Derived by Using Generalized Means and Compact Operators

Amit Maji, Atanu Manna, P. D. Srivastava

This paper presents new sequence spaces $X (r, s, t, p; B)$ for $X \in {l_{\infty} (p), c (p), c_{0} (p), l (p)}$ defined by using generalized means and difference operator. It is shown…

Wold decomposition for isometries with equal range

On decomposition for pairs of twisted contractions

Numerical radius and Berezin number inequality

Wold-type decomposition for Un​-twisted contractions

Orlicz extension of Numerical radius inequalities

Doubly commuting mixed invariant subspaces in the polydisc

Characterization of Invariant subspaces in the polydisc

Pairs of commuting isometries - I

Toeplitz and Asymptotic Toeplitz operators on H2(Dn)

Factorizations of Characteristic Functions

On some geometric properties of generalized Musielak-Orlicz sequence space and corresponding operator ideals

Some Paranormed Difference Sequence Spaces of Order m Derived by Generalized Means and Compact Operators

Difference Sequence Spaces Derived by Using Generalized Means

Some Paranormed Difference Sequence Spaces Derived by Using Generalized Means

"Some mth-order Difference Sequence Spaces of Generalized Means and Compact Operators"

Some B-Difference Sequence Spaces Derived by Using Generalized Means and Compact Operators

Wold-type decomposition for $U_{n}$ -twisted contractions

Toeplitz and Asymptotic Toeplitz operators on $H^{2} (D^{n})$

Some Paranormed Difference Sequence Spaces of Order $m$ Derived by Generalized Means and Compact Operators

"Some $m$ th-order Difference Sequence Spaces of Generalized Means and Compact Operators"

Some $B$ -Difference Sequence Spaces Derived by Using Generalized Means and Compact Operators