Yazar "RTEÜ, Fen - Edebiyat Fakültesi, Matematik Bölümü" için FEF, Matematik Bölümü Koleksiyonu listeleme
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About the equivalence of nullnorms on bounded lattice
Kesicioğlu, Mücahide Nesibe (Kybernetika, 2017)In this paper, an equivalence on the class of nullnorms on a bounded lattice based on the equality of the orders induced by nullnorms is introduced. the set of all incomparable elements w.r.t. the order induced by nullnorms ... -
About the orders induced by implications satisfying the law of importation
Kesicioğlu, Mücahide Nesibe (World Scientific Publ Co Pte Ltd, 2018)In this paper, an order induced by implications on a bounded lattice under some more lenient conditions than the ones given former studies is defined and some of its properties are discussed. By giving an order based on ... -
Aggregation operators of complex fuzzy Z-number sets and their applications in multi-criteria decision making
Köseoğlu, Ali a; Altun, Fatma; Şahin, Rıdvan (Springer, 2024)Fuzzy sets (FSs) are a flexible and powerful tool for reasoning about uncertain situations that cannot be adequately expressed by classical sets. However, these sets fall short in two areas. The first is the reliability ... -
An almost orthosymmetric bilinear map
Yılmaz, Ruşen (2019)In this paper, as a generalization of the concept of pseudo-almost f-algebra, we deÖne a new concept of almost orthosymmetric bilinear map on a vector lattice and prove that the Arens triadjoint of a positive almost ... -
Analyzing the dynamics of ebola transmission with random effects
Merdan, Mehmet; Bekiryazıcı, Zafer; Kesemen, Tülay; Khaniyev, Tahir (Science & Knowledge Publ Corp Ltd, 2018)In this study, a deterministic mathematical model of Ebola transmission is analyzed under random effects. A recent compartmental model of Berge et al. incorporates both direct and indirect transmission in the model. We ... -
Analyzing the stochastic dynamics of COVID-19 waves in Turkey using real data and piecewise sinusoidal functions
Bekiryazıcı, Zafer; Önen, Ayhan (Springer, 2024)In this study, the SIR compartmental model with vital dynamics and standard incidence is used to investigate COVID-19 transmission dynamics in Turkey. The transmission rate of the original model is replaced with a piecewise ... -
The arens triadjoints of some bilinear maps
Yılmaz, Ruşen (Univ Nis, Fac Sci Math, 2014)In this paper we study the Arens triadjoints of some bilinear maps on vector lattices. in particular, we prove that, for Archimedean vector lattices A and B, the Arens triadjoint i) T*** : A '' x A '' -> B '' of a positive ... -
Asymptotic formulations of the eigenvalues and eigenfunctions for a boundary value problem
Şen, Erdoğan; Bayramov, Azad (Wiley-Blackwell, 2013)In this work, a discontinuous boundary-value problem with retarded argument that contains a spectral parameter in the transmission conditions at the point of discontinuity is investigated. We obtained asymptotic formulas ... -
Bidual of r-algebras
Yılmaz, Ruşen (Springer, 2011)We prove that the order continuous bidual of an Archimedean r-algebra is a Dedekind complete r-algebra with respect to the Arens multiplications. © 2010 Springer Science+Business Media, Inc. -
The binomial almost convergent and null sequence spaces
Bişgin, Mustafa Cemil (2018)In this paper, we introduce the sequence spaces f(Br;s), f0(Br;s) and fs(Br;s) which generalize the Kiri¸sÁiís work [16]. Moreover, we show that these spaces are BK-spaces and are linearly isomorphic to the sequence spaces ... -
The binomial sequence spaces of nonabsolute type
Bişgin, Mustafa Cemil (Springeropen, 2016)In this paper, we introduce the binomial sequence spaces b(0)(r,s) and b(c)(r,s) of nonabsolute type which include the spaces c(0) and c, respectively. Also, we prove that the spaces b(0)(r,s) and b(c)(r,s) are linearly ... -
The binomial sequence spaces which include the spaces l(p) and l(infinity) and geometric properties
Bişgin, Mustafa Cemil (Springeropen, 2016)In this work, we introduce the binomial sequence spaces b(p)(r,s) and b(infinity)(r,s) which include the spaces l(p) and l(infinity), in turn. Moreover, we show that the spaces b(p)(r,s) and b(infinity)(r,s) are BK-spaces ... -
Circuit lengths of graphs for the Picard group
Besenk, Murat; Güler, Bahadır Özgür; Değer, Ali Hikmet; Kesicioğlu, Yavuz (Springer International Publishing Ag, 2013)In this paper, we examine some properties of suborbital graphs for the Picard group. We obtain edge and circuit conditions, then propose a conjecture for the graph to be forest. This paper is an extension of some results ... -
The class of L boolean AND D and Its application to renewal reward process
Kamışlık, Aslı Bektaş; Kesemen, Tülay; Khaniyev, Tahir (Amer Inst Physics, 2018)The class of L boolean AND D is generated by intersection of two important subclasses of heavy tailed distributions: the long tailed distributions and dominated varying distributions. This class itself is also an important ... -
Closure operators constructed by logical operations on bounded lattices
Kesicioğlu, Mücahide Nesibe; Kürkçü Çakar, Ece (Elsevier, 2024)In this paper, closure operators obtained from functions having some properties on bounded lattices are defined. By this way, it is aimed to generalize the notions T and U-closure operators obtained from t-norms and uninorms, ... -
Compactness of quadruple band matrix operator and geometric properties
Bişgin, Mustafa Cemil; Sönmez, Aldulcabbar (Sciendo, 2022)In this work, we characterize the class of compact matrix operators from c(0)(Q), c(Q) and l(infinity)(Q) into c(0), c and l(infinity), respectively, with the notion of the Hausdorff measure of noncompactness. Moreover, ... -
Comparison of a random model of Hand-Foot-Mouth Disease model with Gaussian and Laplacian parameters
Bekiryazıcı, Zafer; Hasımoğlu, Saime (Gumushane University, 2022)In this study, we investigate the transmission dynamics of Hand-Foot-Mouth disease (HFMD) using a differential equation system with random parameters. We transform the parameters of the existing deterministic model into ... -
Comparison of stochastic and random models for bacterial resistance
Merdan, Mehmet; Bekiryazıcı, Zafer; Kesemen, Tülay; Khaniyev, Tahir (Springer International Publishing Ag, 2017)In this study, a mathematical model of bacterial resistance considering the immune system response and antibiotic therapy is examined under random conditions. A random model consisting of random differential equations is ... -
Conditions to be a forest for normalizer
Beşenek, M.; Güler, B.O.; Değer, A.H.; Kader, S. (2010)In this paper, we examine some suborbital graphs for the normalizer of ?0(N) in PSL(2, R). -
Congruence relations and direct decomposition of uninorms on bounded lattices
Karaçal, Funda; Ertuğrul, Ümit; Arpacı, Samet; Kesicioğlu, Mücahide Nesibe (World Scientific, 2023)In this paper, the concept of U-compatible congruence and its related properties are studied. We also focus on homomorphism theorems for uninorms. Decomposition of uninorms is investigated via factor congruences, at first. ...