Search Results - "Ghosh, Nirupam"

Invariant Subspaces of Idempotents on Hilbert Spaces by Bala, Neeru, Ghosh, Nirupam, Sarkar, Jaydeb

“…In the setting of operators on Hilbert spaces, we prove that every quasinilpotent operator has a non-trivial closed invariant subspace if and only if every…”
Get full text

Application of conformal mapping to two-dimensional flows in an anisotropic aquifer by Ghosh, Nirupam, Karmakar, Timir, Raja Sekhar, G. P.

“…Analytic element method plays a crucial role to solve fluid flow problems in porous media having isotropic hydraulic conductivity. Flow problems in anisotropic…”
Get full text

A convolution property of univalent harmonic right half-plane mappings by Ali, Md Firoz, Allu, Vasudevarao, Ghosh, Nirupam

“…We consider the convolution of right half-plane harmonic mappings in the unit disk D : = { z ∈ C : | z | < 1 } with respective dilatations e i α ( z + a ) / (…”
Get full text

Bohr type inequality for Cesáro and Bernardi integral operator on simply connected domain by Allu, Vasudevarao, Ghosh, Nirupam

“…In this article, we study the Bohr type inequality for Cesáro operator and Bernardi integral operator acting on the space of analytic functions defined on a…”
Get full text

On a subclass of harmonic close-to-convex mappings by Ghosh, Nirupam, Vasudevarao, A.

“…Let H denote the class of harmonic functions f defined in D : = { z ∈ C : | z | < 1 } , and normalized by f ( 0 ) = 0 = f z ( 0 ) - 1 . In this paper, for α ≥…”
Get full text

Coefficient Estimates for Certain Subclass of Analytic Functions Defined by Subordination by Ghosh, Nirupam, Vasudevarao, A.

“…In this article we determine the coefficient bounds for functions in certain subclasses of analytic functions defined by subordination which are related to the…”
Get full text

The radii of fully starlikeness and fully convexity of a harmonic operator by Ghosh, Nirupam, Vasudevarao, A.

“…Let f = h + g ¯ be a normalized harmonic mapping in the unit disk D : = { z ∈ C : | z | < 1 } . In this paper, we study the radius of fully starlikeness and…”
Get full text

Some basic properties of certain subclass of harmonic univalent functions by Ghosh, Nirupam, Vasudevarao, A.

“…For , let denote the class of sense preserving harmonic mappings in the unit disk satisfying . The main aim of this paper is to study some basic properties…”
Get full text

Bohr type inequality for {C}es\'{a}ro and {B}ernardi integral operator on simply connected domain by Allu, Vasudevarao, Ghosh, Nirupam

“…In this article, we study the Bohr type inequality for {C}es\'{a}ro operator and {B}ernardi integral operator acting on the space of analytic functions defined…”
Get full text

Invariant subspaces of idempotents on Hilbert spaces by Bala, Neeru, Ghosh, Nirupam, Sarkar, Jaydeb

“…In the setting of operators on Hilbert spaces, we prove that every quasinilpotent operator has a non-trivial closed invariant subspace if and only if every…”
Get full text

Coefficient Estimates for Certain Subclass of Analytic Functions Defined by Subordination by Ghosh, Nirupam, Vasudevarao, A

“…Filomat, 31(11) (2017), 3307-3318 In this article we determine the coefficient bounds for functions in certain subclasses of analytic functions defined by…”
Get full text

On Some Subclass of Harmonic Close-to-convex Mappings by Ghosh, Nirupam, Vasudevarao, A

“…Let $\mathcal{H}$ denote the class of harmonic functions $f$ in $\mathbb{D}:= \{z\in \mathbb{C}:|z| < 1\}$ normalized by $f(0) = 0 = f_z(0) -1$. For $\alpha…”
Get full text