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Browsing Matematik by Title

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  • Quantitative spectral perturbation theory for compact operators on a Hilbert space 
    Sarihan, Ayse Guven; Bandtlow, Oscar F. (ELSEVIER SCIENCE INC NEW YORK, 2021)
    We introduce compactness classes of Hilbert space operators by grouping together all operators for which the associated singular values decay at a certain speed and establish upper bounds for the norm of the resolvent of ...
  • QUANTUM OSTROWSKI TYPE INEQUALITIES FOR PRE-INVEX FUNCTIONS 
    Ali, Muhammad Aamir; Budak, Huseyin; Sarikaya, Mehmet Zeki; Set, Erhan (WALTER DE GRUYTER GMBH-BERLIN, 2022)
    In this paper, using the quantum derivatives and quantum integrals, we prove some new quantum Ostrowski's type inequalities for pre-invex functions. Furthermore, in the special cases of newly developed inequalities, we ...
  • Quasicrystal patterns in a neural field model 
    Avitabile, Daniele; Coombes, Stephen; Gokce, Aytul (AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA, 2020)
    Doubly periodic patterns in planar neural field models have been extensively studied since the 1970s for their role in explaining geometric visual hallucinations. The study of activity patterns that lack translation ...
  • The Quaternionic Expression of Ruled Surfaces 
    Caliskan, Abdussamet; Senyurt, Suleyman (UNIV NIS, FAC SCI MATH, PO BOX 224, VISEGRADSKA 33, NIS, 18000, SERBIA MONTENEG, 2018)
    In this paper, firstly, the ruled surface is expressed as a spatial quaternionic. Also, the spatial quaternionic definitions of the Striction curve, the distribution parameter, angle of pitch and the pitch are given. ...
  • Recurrence relationship of successive level singulants 
    Say, Fatih (WILEY HOBOKEN, 2022)
    We study the asymptotic behaviour of the solution to a singularly perturbed model differential equation. The analytical solution is asymptotically represented by a formal power series in the perturbation parameter. This ...
  • Reduced quantum dynamics with initial system-environment correlations characterized by pure Markov states 
    Turkmen, A.; Vercin, A.; Yilmaz, S. (AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA, 2016)
    Any tripartite state which saturates the strong subadditivity relation for the quantum entropy is defined as the Markov state. A tripartite pure state describing an open system, its environment, and their purifying system ...
  • Relationship of psychosociocultural factors with dental malocclusion and facial appearance 
    Hatal, Sedanur; Buyuk, Suleyman Kutalmis (SCIENTIFIC SCHOLAR LLC-PITTSFORD, 2023)
    Objectives: The purpose of this study was to evaluate the relationship between psychosociocultural factors and dental malocclusion, facial appearance, and body perception.Material and Methods: The study was carried out ...
  • Relationships between Integral Averages for Absolutely Continuous Functions Whose Derivative are GA-Convex Functions 
    Kadakal, Huriye; Maden, Selahattin; Turhan, Sercan (AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA, 2017)
    We have obtained a new identity for GA-convex functions. Taking advantage of this identity, we derived a new estimate for the difference between the integral averages and its mean over a subinterval for the GA convex functions.
  • RENEWED STRUCTURE OF NEUTROSOPHIC SOFT GRAPHS AND ITS APPLICATION IN DECISION-MAKING PROBLEM 
    Celik, Yildiray (ANKARA UNIV, FAC SCI-ANKARA, 2023)
    This study is designed with the renewed concept of neutrosophic soft graph (briefly ns-graph) which is a combination of graphs and neutrosophic soft sets. We re-define notions of ns-graphs and ns-subgraphs with the different ...
  • Several New Integral Inequalities via Caputo k-Fractional Derivative Operators 
    Butt, Saad Ihsan; Ozdemir, M. Emin; Umar, Muhammad; Celik, Baris (WORLD SCIENTIFIC PUBL CO PTE LTD SINGAPORE, 2021)
    In this paper, we establish several new integral inequalities involving Caputo k-fractional derivatives for eta-quasi-convex and s-Godunova-Levin convex. In order to obtain our results, we use some classical inequalities ...
  • SIGNATURAL APPLICATIONS OF THE FRICKE GROUP ΓF(N) 
    Buyukkaragoz, Aziz; Unluyol, Erdal (HONAM MATHEMATICAL SOC-GWANGJU, 2022)
    In this paper, we establish the Fricke Group Gamma(F)(N) which is a new special group of Non-Euclidean Crystallograhic (NEC) group. We obtain this group whose congruence subgroup Gamma(0)(N) is expanded with Fricke reflection ...
  • Simpson Type Integral Inequalities for Convex Functions via Riemann-Liouville Integrals 
    Akdemir, Ahmet Ocak; Ozdemir, M. Emin; Set, Erhan (UNIV NIS, FAC SCI MATH, PO BOX 224, VISEGRADSKA 33, NIS, 18000, SERBIA MONTENEG, 2017)
    In this paper some new inequalities of Simpson-type are established for the classes of functions whose derivatives of absolute values are convex functions via Riemann-Liouville integrals. Also, by special selections of ...
  • Simultaneous characterizations of partner ruled surfaces using Flc frame 
    Li, Yanlin; Eren, Kemal; Ayvaci, Kebire Hilal; Ersoy, Soley (AMER INST MATHEMATICAL SCIENCES-AIMS-SPRINGFIELD, 2022)
    In this study, we introduce partner ruled surfaces according to the Flc frame that is defined on a polynomial curve. First, the conditions of each couple of two partner ruled surfaces to be simultaneously developable and ...
  • SMARANDACHE CURVES ACCORDING TO SABBAN FRAME BELONGING TO MANNHEIM CURVES PAIR 
    Altun, Yasin; Cevahir, Ceyda; Senyurt, Suleyman (ANKARA UNIV, FAC SCI, DOGOL CADDESI, ANKARA, 06100, TURKEY, 2019)
    In this paper, we investigate special Smarandache curves according to Sabban frame, using the idea of Mannheim partner curve of spherical indicatrix. We created Sabban frame by means of Mannheim partner curve of spherical ...
  • Smarandache curves According to Sabban Frame for Darboux vector of Mannheim Partner Curve 
    Cevahir, Ceyda; Senyurt, Suleyman; Senyurt, Suleyman (AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA, 2017)
    In this paper, we investigated special Smarandache curves belonging to Sabban frame drawn on the surface of the sphere by Darboux vector of Mannheim partner curve. We created Sabban frame belonging to this curve. It was ...
  • Smarandache Curves According to Sabban Frame of Fixed Pole Curve Belonging to the Bertrand Curves Pair 
    Senyurt, Suleyman; Altun, Yasin; Cevahir, Ceyda (AMER INST PHYSICS-MELVILLE, 2016)
    In this paper, we investigate the Smarandache curves according to Sabban frame of fixed pole curve which drawn by the unit Darboux vector of the Bertrand partner curve. Some results have been obtained. These results were ...
  • Smarandache curves according to the Sabban frame belonging to spherical indicatrix curve of the Salkowski curve 
    Orturk, Burak; Senyurt, Suleyman (TBILISI CENTRE MATH SCI, A RAZMADZE MATHEMATICAL INST 1, M ALEKSIDZE ST, TBILISI, 0193, REP OF GEORGIA, 2020)
    In this study, Smarandache curves are defined according to the Sabban frame by means of the spherical indicatrix curve of the Salkowski curve. Then using these curves we calculated geodesic curvatures. Finally each curve ...
  • Smarandache Curves for Spherical Indicatrix of the Bertrand Curves Pair 
    Altun, Yasin; Cevahir, Ceyda; Senyurt, Suleyman (SOC PARANAENSE MATEMATICA, JD AMERICAS, CAIXA POSTAL 19081, CURITIBA, PR 81531-990, BRAZIL, 2020)
    In this paper, we investigate special Smarandache curves with regard to Sabban frame for Bertrand partner curve spherical indicatrix. Some results have been obtained. These results were expressed depending on the Bertrand ...
  • Smarandache Curves In Terms of Sabban Frame of Fixed Pole Curve 
    Caliskan, Abdussamet; Senyurt, Suleyman (SOC PARANAENSE MATEMATICA, JD AMERICAS, CAIXA POSTAL 19081, CURITIBA, PR 81531-990, BRAZIL, 2016)
    In this paper, we study the special Smarandache curve in terms of Sabban frame of Fixed Pole curve and we give some characterization of Smarandache curves. Besides, we illustrate examples of our results.
  • Smarandache Curves of Bertrand Curves Pair According to Frenet Frame 
    Senyurt, Suleyman; Caliskan, Abdussamet; Celik, Unzile (SOC PARANAENSE MATEMATICA CURITIBA, 2021)
    In this paper, the curvature and the torsion of Smarandache curves obtained by the vectors of the Bertrand partner curve are calculated. These values are expressed depending upon the alpha curve. Besides, we illustrate ...

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