• On (k,mu)-Paracontact Manifold Satisfying Some Curvature Conditions 

  Uygun, Pakize; Atçeken, Mehmet (Matematikçiler Derneği, 2023)

  In this work, we studied the curvature tensors of (k,mu) satisfying the conditions widetildeZ(xi,alpha3)cdotP=0, widetildeZ(xi,alpha3)cdotS=0, R(xi,alpha3)cdotP=0, R(xi,alpha3)cdotS=0 and PcdotC=0. Besides this, we classify ...

• Some Important Properties of Almost Kenmotsu left(kappa,mu,nuright)−Space on the Concircular Curvature Tensor 

  Mert, Tuğba; Atçeken, Mehmet (Fuat USTA, 2023)

  In this article, pseudoparallel submanifolds for almost Kenmotsu left(kappa,mu,nuright)−space are investigated. The almost Kenmotsu left(kappa,mu,nuright)−space is considered on the concircular curvature tensor. Submanifolds ...

• Holomorphically Planar Conformal Vector Field On Almost alpha-Cosymplectic (kappa,mu)− Spaces 

  Yıldırım, Mustafa; Aktan, Nesip (Fuat USTA, 2023)

  The aim of the present paper is to study holomorphically planar conformal vector (HPCV) fields on almost α−α−cosymplectic (κ,μ)−(κ,μ)−spaces. This is done assuming various conditions such as i) UU is pointwise collinear ...

• Some results on pseudosymmetric normal paracontact metric manifolds 

  Atçeken, Mehmet; Mert, Tuğba (Ankara Universty, 2023)

  In this article, the M-projective and Weyl curvature tensors on a normal paracontact metric manifold are discussed. For normal paracontact metric manifolds, pseudosymmetric cases are investigated and some interest-ing ...

• Actions and semi-direct products in categories of groups with action 

  Datuashvili, Tamar; Şahan, Tunçar (Hacettepe University, 2023)

  Derived actions in the category of groups with action on itself Gr• are defined and de-scribed. This category plays a crucial role in the solution of two problems of Loday stated in the literature. A full subcategory of ...

• A mathematical model with piecewise constant arguments of colorectal cancer with chemo-immunotherapy 

  Bozkurt, Fatma; Yousef, Ali; Bilgil, Halis; Baleanu, Dumitru (Elsevier Ltd, 2023)

  We propose a new mathematical model with piecewise constant arguments of a system of ODEs to investigate the growth of colorectal cancer and its response to chemo-immunotherapy. Our main target in this paper is to analyze ...

• A fractional-order mathematical model based on vaccinated and infected compartments of SARS-CoV-2 with a real case study during the last stages of the epidemiological event 

  Bilgil, Halis; Yousef, Ali; Erciyes, Ayhan; Erdinç, Ümmügülsüm; Öztürk, Zafer (PMC, 2023)

  In 2020 the world faced with a pandemic spread that affected almost everything of humans' social and health life. Regulations to decrease the epidemiological spread and studies to produce the vaccine of SARS-CoV-2 were on ...

• Some integral inequalities for the product of s-convex functions in the fourth sense 

  Kemali, Serap; Sezer Evcan, Sinem; Yeşilce Işık, İlknur; Adilov, Gabil (Semnan University, 2022)

  n this paper, several novel inequalities are examined for the product of two s-convex functions in the fourth sense. Also, some applications regarding special means and digamma functions are presented.

• Characterizations for an invariant submanifold of an almost α-Cosymplectic (κ, µ, ν)-space to be totally geodesic 

  Atçeken, Mehmet (University of Nis, 2022)

  The aim of the present paper is to study some geometric conditions for an invariant submanifold of an almost α-cosymplectic (κ, µ, ν)-space to be totally geodesic by means of the curvature tensors.

• Pentactions and action representability in the category of reduced groups with action 

  Datuashvili, Tamar; Şahan, Tunçar (De Gruyter Open Ltd, 2022)

  A notion of pentaction of any object in the category rGr .{\mathbf{rGr}^{\bullet}} of reduced groups with action is introduced. The operations are defined in the set »e - - ac - (A) {\mathsf{Pentact}(A)} of pentactions of ...

• Analytical solution and flow topology in a lid-driven S-shaped cavity 

  Bilgil, Halis; Şafak, İbrahim; Öztürk, Zafer (American Institute of Physics Inc., 2022)

  In this study, the Stokes flow problem in an S-shaped double lid-driven cavity filled with fluid was analyzed. Side edges of the cavity were considered as immovable walls. The flow region was divided into two sub-regions, ...

• Common fixed point theorems for complex-valued mappings with applications 

  Maldar, Samet; Atalan, Yunus (Kangwon-Kyungki Mathematical Society, 2022)

  The aim of this paper is to obtain some results which belong to fixed point theory such as strong convergence, rate of convergence, stability, and data dependence by using the new Jungck-type iteration method for a mapping ...

• Coverings and liftings of generalized crossed modules 

  Aytekin Arıcı, Gamze; Şahan, Tuncar (Shahid Beheshti University, 2022)

  In the theory of crossed modules, considering arbitrary self-actions instead of conjugation allows for the extension of the concept of crossed modules and thus the notion of generalized crossed module emerges. In this paper ...

• On kenmotsu metric spaces satisfying some conditions on the W1-Curvature tensor 

  Uygun, Pakize; Atçeken, Mehmet; Dirik, Süleyman (University of Nis, 2022)

  In this paper we present the curvature tensors of Kenmotsu manifold satisfying the conditions W1 (X, Y) · W0 = 0, W1 (X, Y) · W1 = 0, W1 (X, Y) · W2 = 0, W1 (X, Y) · W3 = 0, W1 (X, Y) · W4 = 0 and W1 (X, Y) · W⋆ = 0. ...

• Convergence and stability analysis of a new four-step fixed-point algorithm 

  Atalan, Yusuf; Kılıç, Esra (Aksaray Üniversitesi, 2022)

  The concept of stability is studied on many different types of mathematical structures. This concept can be thought of as the small changes that will be applied in the structure studied should not disrupt the functioning ...

• Applications of quaternions in galilean spaces 

  Yüca, Gülsüm; Yaylı, Yusuf (Editura Bibliotheca-Bibliotheca Publ House, 2022)

  In this paper, Galilean orthogonal matrices in G(5) and G(1)(5) are obtained with the help of unit quaternions. Moreover, Galilean orthogonal matrices in G(4) and G(1)(4) are acquired. These matrices produce Galilelan ...

• New parallel fixed point algorithms and their application to a system of variational inequalities 

  Maldar, Samet (MDPI, 2022)

  n this study, considering the advantages of parallel fixed point algorithms arising from their symmetrical behavior, new types of parallel algorithms have been defined. Strong convergence of these algorithms for certain ...

• The necessary conditions for A (k, µ)-Paracontact space to be η-EINST EIN manifold 

  Uygun, P.; Atçeken, M. (Palestine Polytechnic University, 2022)

  The object of this paper is to study the curvature tensors of (k, µ)-Paracontact manifold satisfying the conditions R(X, Y) · C = 0, ˜Z(X, Y) · C = 0 and C(X, Y) · C = 0. According these cases, (k, µ)-Paracontact manifolds ...

• Some results on invarinat submanifolds of lorentzian para-kenmotsu manifolds 

  Atçeken, Mehmet (Kangwon-Kyungki Mathematical Society, 2022)

  The purpose of this paper is to study invariant submanifolds of a Lorentzian para Kenmotsu manifold. We obtain the necessary and sufficient conditions for an invariant submanifold of a Lorentzian para Kenmotsu manifold to ...

• Hyper-dual matrices and dual transformations 

  Yüca, Gülsüm; Yaylı, Yusuf (Elsevier B.V., 2022)

  In this paper, we define a dual transformation between hyper-dual orthogonal matrices and hyper-dual semi-orthogonal matrices. We show that the dual transformation leaves invariant the axes (dual lines). Thus, for the first ...

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