Browsing Matematik Bölümü by Author "Kişi, Ömer"
Now showing items 1-20 of 54
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Astrohelicoidal hypersurfaces in 4-space
Güler, Erhan; Kişi, Ömer (International Conference on Mathematics and Mathematics Education, 2019)We consider an astrohelicoidal hypersurface which its profile curve has astroid curve in the four dimensional Euclidean space E4. We also calculate Gaussian curvature and the mean curvature, and Weingarten relation of the ... -
Astrohelicoidal surfaces
Güler, Erhan; Kişi, Ömer (International Conference on Mathematics and Mathematics Education, 2019)We construct an astrohelicoidal surface which its profile curve has astroid curve in the three dimensional Euclidean space E3. We also find Gaussian curvature and the mean curvature, and Weingarten relation of the surface ... -
Curvatures of the translation hypersurface in 4-space
Güler, Erhan; Kişi, Ömer (2020-12-10)We study curvatures C_i (i=1,2,3) of translation hypersurface in the four dimensional Euclidean space. We also give some relations on C_i of translation hypersurface. -
Differential equations on the rotational hypersurfaces in E5
Güler, Erhan; Kişi, Ömer (Mersin Üniversitesi, 2017) -
Dini-type helicoidal hypersurfaces with timelike axis in minkowski 4-space E14
Güler, Erhan; Kişi, Ömer (Mathematics, 2019)We consider Ulisse Dini-type helicoidal hypersurfaces with timelike axis in Minkowski 4-space E41 . Calculating the Gaussian and the mean curvatures of the hypersurfaces, we demonstrate some special symmetries for the ... -
Enneper type surfaces in 4-space
Güler, Erhan; Kişi, Ömer; Saraçoğlu Çelik, Semra (Ahi Evran Üniversitesi, 2016) -
Enneper-type surfaces in three dimensional Minkowski space
Güler, Erhan; Saraçoğlu Çelik, Semra; Kişi, Ömer (International Conference on Recent Advances in Pure and Applied Mathematics, 2016)In this work, we study on anEnneper-typeminimal surfacesusing Weierstrass representation in the threedimensional Minkowskispace. We compute implicit equations, degree and class of the surfaces. -
Euler spirals
Saraçoğlu Çelik, Semra; Güler, Erhan; Kişi, Ömer (Kırşehir Ahi Ervan Üniversitesi, 2016) -
Fibonacci statistical convergence of double sequences and Korovkin type approximation theorems
Kişi, Ömer; Ünal, Hatice Kübra (8th International Conference on Applied Analysis and Mathematical Modelling (ICAAMM19), 2019-03-10) -
A generalized statistical convergence via ideals defined by folner sequences on amenable groups
Kişi, Ömer; Güler, Erhan (4th International Conference on Analysis and Its Applications (ICAA-2018), 2018-09-14) -
A generalized statistical convergence via ideals in 2-normed spaces
Kişi, Ömer (Longdom Publishing SL, 2018-06) -
Helicoidal hypersurfaces of dini-type in the four dimensional minkowski space
Güler, Erhan; Kişi, Ömer (Karaman Üniversitesi, 2018)We define Ulisse Dini-type helicoidal hypersurfaces with spacelikeaxis in Minkowski 4-spaceE41. We compute the Gaussian and the mean curva-ture of the hypersurface. Moreover, we obtain some special symmetries to thecurvatures ... -
Helicoidal surface of logaritmic spiral type in 3-space
Güler, Erhan; Kişi, Ömer (International Conference on Computational Mathematics and Engineering Sciences, 2019)In this paper, we study the logaritmic spiral-type helicoidal surface in Euclidean 3-space. We obtain logaritmic spiral-type helicoidal surface with some figures, and calculate its curvatures. -
I asymptotically lacunary equivalent set sequences defined by a modulus function
Kişi, Ömer; Gümüş, Hafize; Nuray, Fatih (Acta Universitatis Apulensis, 2015-03) -
I-cesaro summability of a sequence of order α of random variables in probability
Kişi, Ömer; Güler, Erhan (Fundamental Journal of Mathematics and Applications, 2018-12)In this paper, we define four types of convergence of a sequence of random variables, namely, I-statistical convergence of order a, I-lacunary statistical convergence of order a, strongly I-lacunary convergence of order ... -
I-cesàro summability of sequences of sets
Kişi, Ömer; Ulusu, Uğur (Electronic Journal of Mathematical Analysis and Applications, 2017-01)In this paper, we de ned concept of Wijsman I-Cesàro summability for sequences of sets and investigate the relationships between the concepts of Wijsman strongly I-Cesàro summability, Wijsman strongly I-lacunary summability, ... -
I-limit inferior and I-limit superior of sequences of sets
Kişi, Ömer; Nuray, Fatih (3rd International Intuitionistic Fuzzy Sets and Contemporary Mathematics Conference (IFSCOM 2016), 2016-08-29)In this talk, we extend the concepts of I-Limit superior and I-Limit inferior for reel number sequences to I-Limit superior and I-Limit inferior for sequences of sets, study their certain properties and establish some ... -
I2-λ-statistically convergence of double sequences in fuzzy normed spaces
Kişi, Ömer (Journal of Intelligent Fuzzy Systems, 2019-04)In this paper, we have investigated I2-λ-statistically convergence for double sequences in fuzzy normed linear spaces, where λ = (λr) and μ = (μs) be two non-decreasing sequences of positive real numbers, each tending to ... -
Implicit equations of the henneberg-type minimal surface in the four dimensional euclidean space
Güler, Erhan; Kişi, Ömer; Konaxis, Christos (2018)Considering the Weierstrass data as $(\psi ,f,g)=( 2,1-z^{-m},z^{n})$, we introduce a two parameter family of Henneberg type minimal surface that we call $\mathfrak{H}_{m,n}$ for positive integers $(m,n)$ by using the ... -
I₂-convergence and I₂-cauchy double sequences in topological groups
Kişi, Ömer (Zonguldak Bülent Ecevit Üniversitesi, 2018-05)Let 2N×N be a family of all subsets of N×N. Following the definition of ideal convergence in a metric space by Kostyrko et al. in 2000, ideal convergence for double sequences in a metric space was introduced by Das et al. ...