Browsing FEF, Matematik Bölümü, Makale Koleksiyonu by Title
Now showing items 1-20 of 91
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Action of a Frobenius-like group with fixed-point free kernel
(De Gruyter, 2014-02)We call a finite group Frobenius-like if it has a nontrivial nilpotent normal subgroup F possessing a nontrivial complement H such that [F,h]=F for all nonidentity elements h ∈ H. We prove that any irreducible nontrivial ... -
Action of a frobenius-like group with kernel having central derived subgroup
(World Scientific Publishing, 2016-09)A finite group FH is said to be Frobenius-like if it has a nontrivial nilpotent normal subgroup F with a nontrivial complement H such that [F, h] = F for all nonidentity elements h is an element of H. Suppose that a finite ... -
Action of a Frobenius-likegroup
(Elsevier, 2014-03-15)We call a finite group Frobenius-like if it has a nontrivial nilpotent normal subgroup F possessing a nontrivial complement H such that [F,h]=F[F,h]=F for all nonidentity elements h∈Hh∈H. We prove that any irreducible ... -
An algorithm for finding the periodic potential of the three-dimensional Schrodinger operator from spectral invariants
(IOP Publishing, 2011-04-15)In this paper, we investigate the three-dimensional Schrodinger operator with a periodic, relative to a lattice Omega of R(3), potential q. A special class V of the periodic potentials is constructed, which is easily and ... -
Annihilators of principal ideals in the exterior algebra
(Mathematical Society of the Republic of China, 2007)In this paper we describe annihilators of principal ideals of exterior algebras. For odd elements we establish formulae for dimensions of their principal ideals and their annihilators. For even elements we exhibit ... -
Asymptotic analysis of non - self - adjoint Hill operators
(Springer Verlag, 2013-12)We obtain uniform asymptotic formulas for the eigenvalues and eigenfunctions of the Sturm-Liouville operators L (t) (q) with a potential q a L (1)[0,1] and t-periodic boundary conditions, t a (-pi, pi]. Using these formulas, ... -
Asymptotic and numerical methods in estimating eigenvalues
(Hindawi Publishing Corporation, 2013)Asymptotic formulas and numerical estimations for eigenvalues of SturmLiouville problems having singular potential functions, with Dirichlet boundary conditions, are obtained. This study gives a comparison between the ... -
Asymptotic formulae for the Bloch eigenvalues near planes of diffraction
(Elsevier, 2006-12)In this paper we obtain asymptotic formulae of arbitrary order for the Bloch eigenvalue of the periodic Schrödinger operator -△ + q(x), of arbitrary dimension, when the corresponding quasi-momentum lies near planes of diffraction. -
Asymptotic formulae for the Schrodinger operator with Dirichlet and Neumann boundary conditions
(Elsevier, 2005-04)In this paper, we consider the Schrodinger operators defined by the differential expression Lu = -Delta u+q(x)u in d-dimensional parallelepiped F, with the Dirichlet and Neumann boundary conditions, and obtain the asymptotic ... -
Asymptotic formulas for Dirichlet boundary value problems
(Akademiai Kiado, 2005-05)In this article we obtain asymptotic formulas of arbitrary order for eigenfunctions and eigenvalues of the nonselfadjoint Sturm-Liouville operators with Dirichlet boundary conditions, when the potential is a summable ... -
Asymptotic formulas for the resonance eigenvalues of the Schrödinger operator
(TÜBİTAK, 2005)In this paper, we consider the Schrödinger operators defined by the differential expression ... in d-dimensional paralellepiped F, with the Dirichlet and the Neumann boundary conditions, where q(x) is a real valued function ... -
Asymptotic formulas with arbitrary order for nonseleadjoint differential operators
(Akademiai Kiado, 2007-09)We obtain asymptotic formulas with arbitrary order of accuracy for the eigenvalues and eigenfunctions of a nonselfadjoint ordinary differential operator of order n whose coefficients are Lebesgue integrable on [0,1] and ... -
C-lattices and decompositions of generalized clifford algebras
(Springer Verlag, 2010-05)In this note we introduce C-lattices to make use of them to provide a short and self-contained proof to the decomposition theorems of generalized Clifford algebras established by T. Y. Lam and T. L. Smith. -
Characterization of some ring properties in incidence algebras
(Taylor & Francis, 2011)Let R be a ring with identity and I(X, R) be the incidence algebra of a locally finite partially ordered set X over R. In this article, we investigate the necessary and sufficient conditions for the incidence ring to be ... -
A class of multi - parameter eigenvalue problems for perturbed p-Laplacians
(Elsevier, 2012-05-15)This paper is devoted to multi-parameter eigenvalue problems for one-dimensional perturbed p-Laplacians, modelling travelling waves for a class of nonlinear evolution PDE. Dispersion relations between the eigen-parameters, ... -
Classification of finite groups according to their conjugacy class lengths
(Walter de Gruyter, 2019)In this paper, we classify all finite groups satisfying the following property: their conjugacy class lengths are set-wise relatively prime for any six distinct classes. -
A combinatorial discussion on finite dimensional leavitt path algebras
(Hacettepe Üniversitesi, 2014)Any finite dimensional semisimple algebra A over a field K is isomorphic to a direct sum of finite dimensional full matrix rings over suitable division rings. We shall consider the direct sum of finite dimensional full ... -
A combinatorial discussion on finite edimensional Leavitt path algebras
(Hacettepe University, 2014)Any finite dimensional semisimple algebra A over a field K is isomorphic to a direct sum of finite dimensional full matrix rings over suitable division rings. We shall consider the direct sum of finite dimensional full ... -
Comment on "group analysis of KdV equation with time dependent coefficients"
(Elsevier, 2010-12-15)We show that the group classification results of the article entitled "Group analysis of KdV equation with time dependent coefficients" which appeared in (A.G. Johnpillai, M.C. Khalique, Group analysis of KdV equation with ... -
Darboux function in a hypersurface of a Riemannian manifold with semi-symmetric metric connection
(Hikari, 2008-10)In 1970, Yano, [1], studied Riemannian manifolds which admit semisymmetric metric connections whose curvature tensors vanish (see also [2]). The properties of a Riemannian manifold admitting a semi-symmetric metric connection ...