Matematik ve Bilgisayar Bölümü / Department of Mathematics and Computer Science
Permanent URI for this collectionhttps://hdl.handle.net/11413/6787
Browse
Browsing Matematik ve Bilgisayar Bölümü / Department of Mathematics and Computer Science by Issue Date
Now showing 1 - 20 of 319
- Results Per Page
- Sort Options
Publication Metadata only Les Représentation Irréductibles Complexes Des Groupes SL 3 q PSL 3 q(1988) Güzel, Erhan; 2127Publication Metadata only A numerical method for calculation of the equivalence volume in potentiometric titrations(1988-02) Çağlar, Süleyman Hikmet; Bozdoğan, Abdürrezzak Emin; Çağal, Behiç; 114368; 11739Publication Embargo Sur le Groupe Des Unités De ZD4(1991) Güzel, Erhan; 2127En réduisant les conditions déterminées par Miiies ["] on obtient une caractérisation de V (ZZ)4). Cette caractérisation est utilisée pour démontrer que Z>4 a un complément normal torsion-libre dans V(ZiD4).Publication Embargo Les Représentation Irréductibles Complexes Du Groupe U (3, p2 *); p * 2(1991) Güzel, Erhan; 2127On obtient pour p3 j=2, toutes les représentations irréductibles complexes du groupe U0,p2 ") défini sur le corps GF{p2 ").Publication Metadata only Primitive Idempotents of The Group Algebra CSL(3, q)(1992) Güzel, Erhan; 2127Publication Metadata only Simultaneous Determination of Paracetamol, Metamizol Sodium and Caffeine in Tablet Preparations by Partial Least-Squares Multivariate Spectrophotometric Calibration(1994-02) Kunt, Gönül; Acar, Alper Mert; Çağlar, Süleyman Hikmet; Bozdoğan, Abdürrezzak Emin; 114368; 11739Publication Embargo A Characterization for Convex Functions of Complex Order b(İstanbul University Science Faculty, 1997) POLATOĞLU, YAŞAR; 199370The main purpose of this note is tö give a new characterization for convex functions of complex order b. It should be noticed that by giving specific values to b we obtain new characterizations of important subclasses of convex functions of complex order b.Publication Open Access On Gaussian Sums Over Finite Fields(İstanbul University Science Faculty, 1997) Yelkenkaya, Neşe; 10806In this paper, it has been determined the sings of normed Gaussian sums over finite fields.Publication Embargo Les Représentation Irréductibles Complexes Des Groupes SL 3 p PSL 3 p(Publications De L'institut Math. Nouvelle Serie, 1998) Güzel, Erhan; 2127Publication Metadata only The numerical solution of third-order boundary-value problems with fourth-degree & B-spline functions(Taylor and Francis Online, 1999) Çağlar, Hatice Nazan; Çağlar, Süleyman Hikmet; Twizell, E. H.; 110809; 114368Third-order linear and non-linear boundary-value problems are solved using fourth-degree B-splines. The convergence of the method is discussed. The method is tested on two problems from the literaturePublication Metadata only Primitive Idempotents of the Group Algebra CSL (2, q)(2000) YELKENKAYA, NEŞE; 10806Publication Embargo Some radius problem for certain families of analytic functions(TÜBİTAK, 2000) Bolcal, Metin; POLATOĞLU, YAŞAR; 199370The aim of this paper is to give bounds of the radius of α-convexity for certain families of analytic functions in the unit disc. The radius of α-convexity is generalization of the radius of convexity and the radius of starlikeness, and introduced by S.S.Miller; P.T.Mocanu and M.O.Reade [3,4]Publication Metadata only On Complex Characters of SL 4 q(2001) Yelkenkaya, Neşe; 10806Publication Embargo θ-Euclidean L-fuzzy Ideals of Rings(TÜBİTAK, 2002) Balkanay, Erol; KOÇ, AYTEN; 112205; 10199The concept of fuzzy ideals is extended by introducing θ-Euclidean L-fuzzy ideals in rings. In particular, some structural theorems for a θ-Euclidean L-fuzzy ideal of R are proved.Publication Open Access On Gaussian Sums Over Finite Fields II(İstanbul Kültür Üniversitesi Yayınları, 2002-04) YelkenKaya, NeşeLet Fq:=GF(q) be a finite field of order q=ps for some s N, where p is an odd prime, and Fq=F( ), where F=Fp. Let =Fq-{0}= and K:= . Let be a non-trivial irreducible character of the additive group of Fq such that 0 h1,…,hs p-1; (h1,…,hs) (0,…,0) and where ; ; =cos(2 /p)+ isin(2 /p) and be the irreducible character of the multiplicative group with for any i Z. In this paper, it has been determined the values of x and y for the irreducible additive character , by counting square elements satisfying certain conditions in .Publication Metadata only The Influence of Tl4Bi2S5 Precipitates on the Crystalline TlBiS2 Properties(WILEY-V C H VERLAG GMBH, PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY, 2002-09-16) Özer, Mehmet; Kalkan, N; Kyritsi, KG; Paraskevopoulos, KM; Anagnostopoulos, AN; Stergioudis, G; Polychroniadis, EKCrystalline TlBiS2 having homogeneously distributed Tl4Bi2S5 precipitates was grown by the vertical Bridgman technique in a two-step procedure. X-rays and Transmission Electron Microscopy (TEM) studies were used to identify the as-grown material whereas a Scanning Electron Microscopy (SEM) examination revealed its layered structure. The electrical conductivity a was measured both along (sigma(parallel to)) and across (sigma(perpendicular to)) its layers. IR reflectivity measurements were also performed and the plasma minimum was determined. Both electrical and optical characterization show properties similar to those of TlBiS2 but a reduced N/m* ratio and an irregular voltage oscillation in the I-U characteristics were deduced. Combining the results from these investigations a possible explanation was proposed.Publication Metadata only Energy dispersive X-ray fluorescence and neutron activation analyses of sediments from the Turkish coast of the west Black Sea(PARLAR SCIENTIFIC PUBLICATIONS (P S P), ANGERSTR. 12, 85354 FREISING, GERMANY, 2003) Mukhamedshina, N. M.; Mirsagatova, A. A.; AKYÜZ, SEVİM; AKYÜZ, ZEKİ TANILSome surface sediment samples, collected from 10 sampling sites of the southwest part of the Black Sea in 1998, were analysed quantitatively by radioisotope energy dispersive X-ray fluorescence (EDXRF) and instrumental neutron activation analysis (INAA) methods. The concentration of U, Th, Sc and some other rare earth elements (REEs) and important heavy metals in the sediment samples are as follows: U (1.5-5.7 mg/kg), Th (1.9-11 mg/kg), Sc (1.7-13 mg/kg), La (7.8-30 mg/kg), Ce (12-68 mg/kg), Nd (9-20 mg/kg), Sm (1.5-5.3 mg/kg), Th (0.18-0.82 mg/kg), Lu (0.06-0.44 mg/kg), Cd (0.10-0.26 mg/kg), Sb (0.036-2.30 mg/kg), Hg (0.02-0.08 mg/kg), and Pb (2-35 mg/kg). The results investigated indicate the presence of correlations between the concentrations of some elements of the sediment samples. The results are also compared to those of other marine sediments.Publication Metadata only Türkiyedeki altın serisinin local polinomal yaklaşımla düzgünleştirilmesi(2003) Çağlar, Hatice Nazan; Çağlar, Süleyman Hikmet; 110809; 114368Publication Metadata only Spline Solution of Nonlinear Beam Problems(2003-03) Çağlar, Nazan; Çağlar, Hikmet; Çağal, Behiç; 110809; 114368Nonlinear, fourth-order boundary-value problems (special case) are solved using sixth-degree B-splines. The convergence of the method is discussed. The method is tested on two beam problems from the literature.Publication Embargo A spectroscopic atlas of Deneb (A2 lae) lambda lambda 3826-5212(E D P SCIENCES, 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE, 2003-03) Albayrak, B.; Gulliver, A. E.; Adelman, S. J.; Aydin, C.; Koçer, DursunWe present a spectroscopic atlas of Deneb (A2 Iae) obtained with the long camera of the 1.22-m telescope of the Dominion Astrophysical Observatory using Reticon and CCD detectors. Forlambdalambda3826-5212 the inverse dispersion is 2.4 Angstrom mm(-1) with a resolution of 0.072 Angstrom. At the continuum the mean signal-to-noise ratio is 1030. The wavelengths in the laboratory frame, the equivalent widths, and the identifications of the various spectral features are given. This atlas should provide useful guidance for studies of other stars with similar spectral types. The stellar and synthetic spectra with their corresponding line identifications can be examined at ht tp://www.brandonu.ca/physics/gulliver/atlases.html.