Güncel Gönderiler

  • Data mining approachs for machine failures: real case study 

    Kaya, Ümran (Springer, 2023)
    As in all manufacturing systems, in production of corrugated cardboard, the machine errors and stops caused by the different properties of the raw materials are observed. These errors are reflected to the manufacturers as ...
  • Separable properties of differential operators in exterior regions and applications 

    Shakhmurov, Veli (Lobachevskii Journal of Mathematics, 2023)
    The abstract elliptic and parabolic equations on exterior regions are considered. The equations have top-order variable coefficients. The separability properties of boundary value problems for elliptic equation and ...
  • Navier-Stokes problems with small parameters in half space and application 

    Shakhmurov, Veli (Pleiades Publishing, 2023)
    We derive the existence, uniqueness, and uniform Lp estimates for the abstract Navier– Stokes problem with small parameters in half-space. The equation involves small parameters and an abstract operator in a Banach space ...
  • The controllability problem for abstract wave equations and its applications 

    Shakhmurov, Veli; Mahmudov, Eilmhan N. (Mediterranean Journal of Mathematics, 2023)
    The paper is devoted to the boundary controllability of the abstract wave equations when the control is exerted on a part of the boundary by means of one control. We give a Kalman-type condition and give a description of ...
  • Regularity properties of integral problems for wave equations and applications 

    Shakhmurov, Veli; Shahmurov, Rishad (Advances in the theory of nonlinear analysis and its applications, 2023)
    In this paper, the integral problem for linear and nonlinear wave equations are studied.The equation involves elliptic operator L and abstract operator A in Hilbert space H. Here, assuming enough smoothness on the initial ...
  • Interaction of virus in cancer patients: a theoretical dynamic model 

    Shakhmurov, Veli; Kurulan, Muhammet; Sahmurova, Aida; Gursesli, Mustafa Can; Lanata, Antonio (Bioengineering, 2023)
    This study reports on a phase-space analysis of a mathematical model of tumor growth with the interaction between virus and immune response. In this study, a mathematical determination was attempted to demonstrate the ...
  • Spectral properties of differential operators with discontinuous coefficients and applications 

    Shakhmurov, Veli (Publicationes Mathematicae Debrecen, 2023)
    In this paper, the spectral properties of linear operators in Banach spaces are studied. We find sufficient conditions on the structure of Banach spaces and resolvent properties that guarantee the completeness of the root ...
  • Warped f-product finsler metrics 

    Ülgen, Semail (Bilecik Seyh Edebali University Journal of Science, 2023-11-30)
    This paper shows the existence of some Ricci-flat warped f-Product Finsler metrics. We investigate the general structure of this newly defined warped f-Product Finsler metrics, indeed we identify the metric form, spray ...
  • Araç rotalama projesi 

    Ülgen, Semail; Erdoğan Akbulut, Hatice (2022-04-01)
    Haftanın altı günü çalışan bir firmanın siparişleri günlük olarak dağıtıma çıkmaktadır. Siparişler öncelikli olarak hangi güzergaha ait olduğu belirlenmektedir. Ardından başlangıç noktasına göre (depo, fabrika vs.) uzaklık ...
  • On some ricci curvature tensors in finsler geometry 

    Şengelen Sevim, Esra; Shen, Zhongmin; Ülgen, Semail (2023-06-01)
    In this paper, we discuss several Ricci curvature tensors and their relationship with the Ricci curvature and some non-Riemannian quantities. By these Ricci curvature tensors, we shall have a better understanding on the ...
  • SU TASARRUFU SAĞLAYAN SULAMA APARATI 2023/000465 numaralı/P.BŞV.2023/008 referanslı 

    ÜLGEN, SEMAİL (TC TÜRK PATENT VE MARKA KURUMU  Patent Dairesi Başkanlığı, 2023-10-02)
    Buluş ağaç sulama alanında su verimliliğini artırmak amacıyla, düzgün yamukların birbirine geçirilmesiyle oluşturulmuş bir etek kısmı ve su buharlaşmasının tamamıyla engellenmesi amacıyla, buluşun gövde yarıçapı farklı ...
  • On Some Ricci Curvature Tensors in Finsler geometry 

    Sengelen Sevim, Esra; Shen, Zhongmin; Ülgen, Semail (13-15 Eylül 2023 Feza Gürsey Enstitüsü’nde “Genel Görelilikte Karakteristik Sınıflar” Yaz Okulu (https://fezagursey.bogazici.edu.tr/en/genel-gorelilikte-karakteristik-siniflar-13-15092023), 2023)
    In this paper, we discuss several Ricci curvature tensors and their relationship with the Ricci curvature and some non-Riemannian quantities. By these Ricci curvature tensors, we shall have a better understanding on the ...
  • On ricci-quadratic finsler metrics 

    Sengelen Sevim, Esra; Shen, Zhongmin; Ülgen, Semail (The Journal of Geometric Analysis, 2023-06-12)
    Finsler metrics being Ricci-quadratic is a non-Riemannian condition since the Ricci curvature (tensor) is always Ricci-quadratic for Riemannian metrics. In this paper, we introduce the notion of strongly Ricci-quadratic ...
  • On a class of Ricci quadratic Finsler metrics 

    Gabrani, Mehran; Şengelen Sevim, Esra; Ülgen, Semail (2024)
    In this paper, we study a class of Finsler warped product metrics with quadratic Ricci curvature. This class is characterized by a partial differential equation. In particular, we obtain a special class of Finsler warped ...
  • On strongly Ricci-quadratic finsler metrics 

    Şengelen Sevim, Esra; Shen, Zhongmin; Ülgen, Semail (Springer, 2023)
    Finsler metrics being Ricci-quadratic is a non-Riemannian condition since the Ricci curvature (tensor) is always Ricci-quadratic for Riemannian metrics. In this paper, we introduce the notion of strongly Ricci-quadratic ...
  • Estimation of alighting counts for public transportation vehicle occupancy levels using reverse direction boarding 

    Özgün, Kamer; Günay, Melih; Başaran, Doruk; Ledet, Joseph (Elsevier, 2023)
    In order to improve the performance of a public transport system, it is important to know alighting counts as well as boarding counts at bus stops. While boarding is almost always available through a fare collection system, ...
  • Dynamics of a cancer tumor growth model with a drug term 

    Sahmurova, Aida; Shakhmurov, Veli (10th International Congress on Fundamental and Applied Sciences, 2023)
    Here, we investigate Michaelis-Menten type dynamics of phase-space analysis to a mathematical model of tumor growth with an immune responses. We thenexplore the effects of adaptive cellular immunotherapy on the model ...
  • The nonlinear dynamics a cancer tumor growth model and application 

    Sahmurova, Aida; Shakhmurov, Veli (11th International Summit Scientific Research Congress, 2023)
    In this talk, mathematical analysis of the model equations with multipoint condition, regarding dissipativity, boundedness of solutions, invariance of non-negativity, nature of equilibria, local and global stability have ...
  • A novel nonlinear dynamic model describing the spread of virus 

    Shakhmurov, Veli; Kurulay, Muhammet; Sahmurova, Aida; Gürsesli, Mustafa Can; Lanata, Antonio (MDPI, 2023)
    This study proposes a nonlinear mathematical model of virus transmission. The interaction between viruses and immune cells is investigated using phase-space analysis. Specifically, the work focuses on the dynamics and ...
  • Interaction of virus in cancer patients: a theoretical dynamic model 

    Shakhmurov, Veli; Kurulay, Muhammet; Sahmurova, Aida; Gürsesli, Mustafa Can; Lanata, Antonio (MDPI, 2023)
    This study reports on a phase-space analysis of a mathematical model of tumor growth with the interaction between virus and immune response. In this study, a mathematical determination was attempted to demonstrate the ...

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