Güncel Gönderiler: Matematik-Makale Koleksiyonu
Toplam kayıt 499, listelenen: 441-460
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Averaged modulus of smoothness and two-sided monotone approximation in Orlicz spaces
(Hacettepe Univ, 2018)The paper deals with basic properties of averaged modulus of smoothness in Orlicz spaces L-phi*. Some direct and inverse two-sided approximation problems in L-phi* are proved. In the last section, some inequalities concerning ... -
Ellipses and similarity transformations with norm functions
(Scientific Technical Research Council Turkey-TUBITAK, 2018)In this paper, we deal with a conjecture related to the images of ellipses (resp. circles) under similarities that are the special Mobius transformations. We consider ellipses (resp. circles) corresponding to any norm ... -
Inequalities for submanifolds of Sasaki-like statistical manifolds
(Scientific Technical Research Council Turkey-TUBITAK, 2018)We consider statistical submanifolds in Sasaki-like statistical manifolds. We give some examples of invariant and antiinvariant submanifolds of Sasaki-like statistical manifolds. We prove Chen-like inequality involving ... -
Commutator subgroups of generalized hecke and extended generalized hecke groups
(Ovidius Univ Press, 2018)Let p and q be integers such that 2 <= p <= q, p + q > 4 and let H-p,H-q be the generalized Hecke group associated to p and q. The generalized Hecke group H-p,H-q is generated by X (z) = -(z - lambda(p))(-1) and Y(z) = -(z ... -
On slant curves in s-manifolds
(Korean Mathematical Soc, 2018)In this paper, we consider biharmonic slant curves in S-space forms. We obtain a main theorem, which gives us four different cases to find curvature conditions for these curves. We also give examples of slant curves in R2n+s(-3s). -
Numerical inverse laplace homotopy technique for fractional heat equations
(Vinca Inst Nuclear Sci, 2018)In this paper, we have aimed the numerical inverse Laplace homotopy technique for solving some interesting 1-D time fractional heat equations. This method is based on the Laplace homotopy perturbation method, which is ... -
A new extension of the m-b-metric spaces
(Univ Prishtines, 2018)In this paper, we present a new notion which is called an extended Mb-metric space as a generalization of an M-b-metric space. We investigate some basic and topological properties of this new space. Furthermore, an extended ... -
Simultaneous approximation in lebesgue space with variable exponent
(Inst Mathematics & Mechanics, 2018)In this paper we deal with the simultaneous approximations by trigonometric polynomials of 27 periodic functions in the variable exponent Lebesgue spaces. In terms of the higher moduli of smoothness the direct and inverse ... -
A different approach to the european option pricing model with new fractional operator
(Edp Sciences S A, 2018)In this work, we have derived an approximate solution of the fractional Black-Scholes models using an iterative method. The fractional differentiation operator used in this paper is the well-known conformable derivative. ... -
Some remarks on the zeros of tribonacci polynomials
(Etamaths Publ, 2018)In this paper, the zeros of Tribonacci polynomials are studied. The bound containing the zeros of Tribonacci polynomials has been numerically examined with comparisons. On the other hand, a new algorithm is given so that ... -
Approximation by matrix transforms in weighted lebesgue spaces with variable exponent
(Springer Basel Ag, 2018)In this work the approximation properties of the matrix transforms of functions in the weighted variable exponent Lebesgue spaces are investigated. -
Gadjieva's conjecture, k-functionals, and some applications in weighted lebesgue spaces
(Scientific Technical Research Council Turkey-Tubitak, 2018)We prove that Gadjieva's conjecture holds true as stated in her PhD thesis. The positive solution of this conjecture allows us to obtain improved versions of the Jackson-Stechkin type inequalities obtained in her thesis ... -
Multiplier and approximation theorems in smirnov classes with variable exponent
(Scientific Technical Research Council Turkey-Tubitak, 2018)Let G subset of C be a bounded Jordan domain with a rectifiable Dini-smooth boundary F and let G(-) := ext Gamma. In terms of the higher order modulus of smoothness the direct and inverse problems of approximation theory ... -
Grobner-shirshov basis for the singular part of the brauer semigroup
(Scientific Technical Research Council Turkey-Tubitak, 2018)In this paper, we obtain a Grobner-Shirshov (noncommutative Grobner) basis for the singular part of the Brauer semigroup. It gives an algorithm for getting normal forms and hence an algorithm for solving the word problem ... -
Some results on hecke and extended hecke groups
(Scientific Technical Research Council Turkey-Tubitak, 2018)Let q >= 3 be a prime number and let (H) over bar(lambda(q)) be the extended Hecke group associated with q. In this paper, we determine the presentation of the commutator subgroup (H (lambda(q))alpha)' of the normal subgroup ... -
Approximation of continuous functions by matrix means of hexagonal fourier series
(Springer Basel Ag, 2018)Some estimates for the degree of approximation by matrix means of hexagonal Fourier series of H-periodic continuous functions are obtained. The degree of approximation of H-periodic Holder continuous functions by these ... -
Approximation by integral functions of finite degree in variable exponent lebesgue spaces on the real axis
(Scientific Technical Research Council Turkey-Tubitak, 2018)We obtain several inequalities of approximation by integral functions of finite degree in generalized Lebesgue spaces with variable exponent defined on the real axis. Among them are direct, inverse, and simultaneous estimates ... -
Some fixed-point results on parametric N-b -metric spaces
(Korean Mathematical Soc, 2018)Our aim is to introduce the notion of a parametric N-b-metric and study some basic properties of parametric N-b-metric spaces. We give some fixed-point results on a complete parametric N-b-metric space. Some illustrative ... -
Inequalities for submanifolds in statistical manifolds of quasi-constant curvature
(Polish Acad Sciences Inst Mathematics-Impan, 2018)We obtain inequalities for statistical submanifolds of a statistical manifold of quasi-constant curvature. We also obtain the Chen-Ricci inequality and the generalized Wintgen inequality for this type of submanifolds. -
Gradient ricci solitons on multiply warped product manifolds
(Univ Nis, 2018)We consider gradient Ricci solitons on multiply warped product manifolds. We find the necessary and sufficient conditions for multiply warped product manifolds to be gradient Ricci solitons.
