Search Results - "Acta universitatis sapientiae. Mathematica"
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Subclasses of bi-univalent functions related to shell-like curves connected with Fibonacci numbers
Published in Acta universitatis sapientiae. Mathematica (01-08-2018)“…In this paper, we introduce and investigate new subclasses of bi-univalent functions related to shell-like curves connected with Fibonacci numbers…”
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On Menelaus’ and Ceva’s theorems in Nil geometry
Published in Acta universitatis sapientiae. Mathematica (01-11-2023)“…In this paper we deal with geometry, which is one of the homogeneous Thurston 3-geometries. We define the “surface of a geodesic triangle” using generalized…”
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Extremal trees for the Randić index
Published in Acta universitatis sapientiae. Mathematica (01-12-2022)“…Graph theory has applications in various fields due to offering important tools such as topological indices. Among the topological indices, the Randić index is…”
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Norm and almost everywhere convergence of matrix transform means of Walsh-Fourier series
Published in Acta universitatis sapientiae. Mathematica (01-12-2023)“…We show the uniformly boundedness of the L norm of general matrix transform kernel functions with respect to the Walsh-Paley system. Special such matrix means…”
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Oscillatory behavior of second-order nonlinear noncanonical neutral differential equations
Published in Acta universitatis sapientiae. Mathematica (01-12-2023)“…This paper discusses the oscillatory behavior of solutions to a class of second-order nonlinear noncanonical neutral differential equations. Sufficient…”
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Defining and investigating new soft ordered maps by using soft semi open sets
Published in Acta universitatis sapientiae. Mathematica (01-08-2021)“…Here, we employ soft semi open sets to define new soft ordered maps, namely soft x-semi continuous, soft x-semi open, soft x-semi closed and soft x-semi…”
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Continuous dependence for double diffusive convection in a Brinkman model with variable viscosity
Published in Acta universitatis sapientiae. Mathematica (01-11-2022)“…This current work is presented to deal with the model of double diffusive convection in porous material with variable viscosity, such that the equations for…”
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A survey of the maximal and the minimal nullity in terms of omega invariant on graphs
Published in Acta universitatis sapientiae. Mathematica (01-12-2023)“…Let G = (V, E) be a simple graph with n vertices and m edges. ν(G) and c(G) = m − n + θ be the matching number and cyclomatic number of G, where θ is the…”
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Fixed point in ℳvb M_{\rm{v}}^{\rm{b}} – metric space and applications
Published in Acta universitatis sapientiae. Mathematica (01-12-2023)“…The aim is to utilize a new metric called an –metric which is an improvement and generalization of M −metric to revisit the celebrated Banach and Sehgal…”
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Two applications of Grunsky coefficients in the theory of univalent functions
Published in Acta universitatis sapientiae. Mathematica (01-12-2023)“…Let denote the class of functions f which are analytic and univalent in the unit disk 𝔻 = {z : |z| < 1} and normalized with . Using a method based on Grusky…”
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On k-semi-centralizing maps of generalized matrix algebras
Published in Acta universitatis sapientiae. Mathematica (01-12-2023)“…Let 𝒢 = 𝒢 (A, M, N, B) be a generalized matrix algebra over a commutative ring with unity. In the present article, we study k-semi-centralizing maps of…”
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12
Automorphisms of Zappa-Szép product fixing a subgroup
Published in Acta universitatis sapientiae. Mathematica (01-12-2023)“…In this paper, we have found the automorphism group of the Zappa-Szép product of two groups fixing a subgroup. We have computed these automorphisms for a…”
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13
Uniqueness of Dirichlet series in the light of shared set and values
Published in Acta universitatis sapientiae. Mathematica (01-12-2023)“…In this article, we have studied the uniqueness problem of Dirichlet series, which is convergent in a right half-plane and having analytic continuation in the…”
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14
On relation-theoretic F−contractions and applications in F−metric spaces
Published in Acta universitatis sapientiae. Mathematica (01-12-2023)“…The aim is to introduce some relation theoretic variants of F−contraction in an F−metric space endowed with a binary relation and to prove results for its…”
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15
Proofs, generalizations and analogs of Menon’s identity: a survey
Published in Acta universitatis sapientiae. Mathematica (01-11-2023)“…Menon’s identity states that for every positive integer n one has ∑ (a − 1, n) = φ (n)τ(n), where a runs through a reduced residue system (mod n), (a − 1, n)…”
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Pre-Schur convex functions and some integral inequalities on domains from plane
Published in Acta universitatis sapientiae. Mathematica (01-11-2023)“…In this paper we introduce the concept of pre-Schur convex functions defined on general domains from plane. Then, by making use of Green’s identity for double…”
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Some new results on the prime order Cayley graph of given groups
Published in Acta universitatis sapientiae. Mathematica (01-11-2023)“…In this paper, we study the prime order Cayley graph assigned to the group ℤ for different values of n. We specify some of the graph theoretical properties…”
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Subclass of analytic functions with negative coefficients related with Miller-Ross-type Poisson distribution series
Published in Acta universitatis sapientiae. Mathematica (01-11-2023)“…The purpose of the present paper is to find a necessary and sufficient condition for Miller-Ross-type Poisson distribution series to be in the class 𝒲 (α, γ,…”
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Parametric uniform numerical method for singularly perturbed differential equations having both small and large delay
Published in Acta universitatis sapientiae. Mathematica (01-11-2023)“…In this paper, singularly perturbed differential equations having both small and large delay are considered. The considered problem contains large delay…”
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A note on convolution of Janowski type functions with q-derivative
Published in Acta universitatis sapientiae. Mathematica (01-11-2023)“…The purpose of the present paper is to introduce and study new subclasses of analytic functions which generalize the classes of Janowski functions with…”
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