Search Results - "Nagpal, Sumit"

Radius of Convexity for Analytic Part of Sense-Preserving Harmonic Mappings by Raj, Ankur, Nagpal, Sumit

“…Given a sense-preserving harmonic function f = h + g ¯ defined in the open unit disk, the radius of convexity for the analytic part h is determined under…”
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Exponential radii of starlikeness and convexity of some special functions by Naz, Adiba, Nagpal, Sumit, Ravichandran, V.

“…Using the Hadamard factorization, the exponential radii of starlikeness and convexity for various special functions like Wright function, Lommel function,…”
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Coefficient functionals for non-Bazilevič functions by Kumar, Virendra, Nagpal, Sumit, Cho, Nak Eun

“…Sharp bounds on the second and third order Hermitian-Toeplitz determinants, initial logarithmic and inverse coefficients for functions in the class of…”
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Inclusion relations and radius problems for a subclass of starlike functions by Prachi Gupta, Sumit Nagpal, Vaithiyanathan Ravichandran

“…By considering the polynomial function $\phi_{car}(z)=1+z+z^2/2,$ we define the class $\Scar$ consisting of normalized analytic functions $f$ such that $zf'/f$…”
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Exponential Starlikeness and Convexity of Confluent Hypergeometric, Lommel, and Struve Functions by Naz, Adiba, Nagpal, Sumit, Ravichandran, V.

“…Sufficient conditions are obtained on the parameters of Lommel function of the first kind, generalized Struve function of the first kind, and the confluent…”
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Marx–Strohhäcker theorem for multivalent functions by Gupta, Prachi, Nagpal, Sumit, Ravichandran, V.

“…Some differential implications of classical Marx–Strohhäcker theorem are extended for multivalent functions. These results are also generalized for functions…”
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CONSTRUCTION OF SUBCLASSES OF UNIVALENT HARMONIC MAPPINGS by Nagpal, Sumit, Ravichandran, V.

“…Complex-valued harmonic functions that are univalent and sense-preserving in the open unit disk are widely studied. A new method- ology is employed to…”
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On the Product of Planar Harmonic Mappings by Raj, Ankur, Nagpal, Sumit, Ravichandran, V.

“…Given two harmonic functions f 1 = h 1 + g ¯ 1 and f 2 = h 2 + g ¯ 2 defined on the open unit disk of the complex plane, the geometric properties of the…”
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INCLUSION RELATIONS AND RADIUS PROBLEMS FOR A SUBCLASS OF STARLIKE FUNCTIONS by Gupta, Prachi, Nagpal, Sumit, Ravichandran, Vaithiyanathan

“…By considering the polynomial function car(z) = 1 + z + z2/2, we define the class *car consisting of normalized analytic functions f such that zf'/f is…”
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CONSTRUCTION OF SUBCLASSES OF UNIVALENT HARMONIC MAPPINGS by Nagpal, Sumit, Ravichandran, V

“…Complex-valued harmonic functions that are univalent and sense-preserving in the open unit disk are widely studied. A new methodology is employed to construct…”
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Radius Constants for Functions with the Prescribed Coefficient Bounds by Ahuja, O. P., Ravichandran, V., Nagpal, Sumit

“…For an analytic univalent function f(z)=z+∑n=2∞anzn in the unit disk, it is well-known that an≤n for n≥2. But the inequality an≤n does not imply the univalence…”
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Radius of convexity of classes associated with the ratio of derivative functions by Kaur, Gurpreet, Nagpal, Sumit

“…The sharp radius of convexity of the classes consisting of normalized analytic functions f defined in the open unit disk is determined such that the condition…”
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Radius Problems for the New Product of Planar Harmonic Mappings by Raj, Ankur, Nagpal, Sumit

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On a Subclass of Strongly Starlike Functions Associated with Exponential Function by Mendiratta, Rajni, Nagpal, Sumit, Ravichandran, V.

“…Let S e ∗ denote the class of analytic functions f in the open unit disk normalized by f ( 0 ) = f ′ ( 0 ) - 1 = 0 and satisfying the condition z f ′ ( z ) / f…”
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Star-likeness associated with the exponential function by NAZ, Adiba, NAGPAL, Sumit, RAVICHANDRAN, V

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A subclass of close-to-convex harmonic mappings by Nagpal, Sumit, Ravichandran, V.

“…A subclass of complex-valued close-to-convex harmonic functions that are univalent and sense-preserving in the open unit disc is investigated. The coefficient…”
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Univalence and convexity in one direction of the convolution of harmonic mappings by Nagpal, Sumit, Ravichandran, V.

“…Let denote the class of all complex-valued harmonic functions in the open unit disc normalized by , and let be the subclass of consisting of normalized…”
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Convolution properties of the harmonic Koebe function and its connection with 2-starlike mappings by Nagpal, Sumit, Ravichandran, V.

“…In 1984, Clunie and Sheil-Small constructed the harmonic Koebe function expecting it to play the role of extremal function for extremal problems over the class…”
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Marx-Strohh\"{a}cker theorem for Multivalent Functions by Gupta, Prachi, Nagpal, Sumit, Ravichandran, V

“…Some differential implications of classical Marx-Strohh\"acker theorem are extended for multivalent functions. These results are also generalized for functions…”
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Geometric Properties of Generalized Bessel Function associated with the Exponential Function by Naz, Adiba, Nagpal, Sumit, Ravichandran, V

“…Sufficient conditions are determined on the parameters such that the generalized and normalized Bessel function of the first kind and other related functions…”
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