Zobrazeno 1 - 10
of 1 504
pro vyhledávání: '"Extreme points"'
Autor:
J. Dziok
Publikováno v:
Journal of Inequalities and Applications, Vol 2024, Iss 1, Pp 1-14 (2024)
Abstract In this paper, we study classes of meromorphic harmonic functions defined by Ruscheweyh derivatives. In addition to finding certain analytic criteria, we obtain radii of starlikeness and convexity, and some topological properties for the def
Externí odkaz:
https://doaj.org/article/7b4c387f297742d9a698aa0f6f45d896
Autor:
S.G. Kim
Publikováno v:
Researches in Mathematics, Vol 32, Iss 1, Pp 71-82 (2024)
In this paper we classify the norming set of a bilinear form on the plane with a certain norm whose unit ball has only four extreme points. We obtain the results of [6, 8] as corollary.
Externí odkaz:
https://doaj.org/article/2bdf4362ab254f2688af50822cc69817
Publikováno v:
Wasit Journal for Pure Sciences, Vol 3, Iss 3 (2024)
The main goal of the present paper is to introduce a new class of harmonic multivalent functions defined by a new linear operator in the open unit disc . Thus, some geometric properties have examined, including coefficient inequality, extreme points,
Externí odkaz:
https://doaj.org/article/5ce405fc312e457ead4854c5737dd5a4
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 127-137 (2024)
This article proposed the novel approach of multimodel image matching based on the feature integration of multidirectional phase superposition and weighted moment diagrams to handle the matching problem of large contrast differences, lots of noises,
Externí odkaz:
https://doaj.org/article/c5b3affe46534671b4d65cf2740f366b
Publikováno v:
Journal of Mahani Mathematical Research, Vol 13, Iss 1, Pp 181-195 (2023)
As the main findings of our research work, we present a novel theorem on the relationship between the number of extrema of compound sinusoidal signals and its high-frequency component. In the case of signals consisting of the sum of two sine signals,
Externí odkaz:
https://doaj.org/article/2eed52fb66fc4c0187a4141334168636
Publikováno v:
Journal of Mahani Mathematical Research, Vol 13, Iss 1, Pp 61-70 (2023)
By considering a fixed point in the punctured unit disk and using the $q$--derivative, a new subfamily of meromorphic and univalent functions is defined. Also, the first and second order {$q$--derivative} of meromorphic functions are introduced. Coef
Externí odkaz:
https://doaj.org/article/63b6a2153d294ab983710f7df77ba3b0
Akademický článek
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Autor:
Octav Olteanu
Publikováno v:
Mathematics, Vol 12, Iss 18, p 2878 (2024)
We start by an application the of Krein–Milman theorem to the integral representation of completely monotonic functions. Elements of convex optimization are also mentioned. The paper continues with applications of Hahn–Banach-type theorems and po
Externí odkaz:
https://doaj.org/article/4eafb0c44c2a43a5b9dfa5487c2e5806
Autor:
Jacek Dziok
Publikováno v:
Symmetry, Vol 16, Iss 9, p 1112 (2024)
The Geometric Theory of Analytic Functions was initially developed for the space of functions that are analytic in the unit disk. The convexity and starlikeness of functions are the first geometric ideas considered in this theory. We can notice a sym
Externí odkaz:
https://doaj.org/article/54b7e01a99a740fd9dab4cc6c7dac7a0
Autor:
S. H. Hadi, M. Darus
Publikováno v:
Проблемы анализа, Vol 12 (30), Iss 2, Pp 17-36 (2023)
With the aid of 𝑞-calculus, this paper introduces a new generalized p𝑝, 𝑞q-Bernardi integral operator ℬ^𝑝 𝑛,𝑞𝑓p𝑧q. Then, we define a new subclass of harmonic p𝑝, 𝑞q-starlike functions of complex order associated with
Externí odkaz:
https://doaj.org/article/f404059d806f44f89d88bbc1f8a2fe55