In this study, we give isogonal conjugates from major contributions of the modern synthetic geometry of the triangle in hyperbolic plane.Key Words: Hyperbolic Ceva theorem and Hyperolic sines theorem

In a series of papers, B.E. Rhoades and M. Yıldırım previously investigated the spectra and fine spectra for factorable matrices, considered as bounded operators over various sequence spaces. In the present paper approximation point spectrum, defect spectrum and compression spectrum…

In this article, some cople fixed point theorems are proved for the class of cone-Banach valued metric spaces over normal cones without regularity. Key Words: Cone Metric Spaces, Fixed Point Theory

Ultrasonic technique is of paramount importance in residual stress measurement. The technique has many advantages than other residual stress measurement techniques. However, precision and determining acoustoelastic constants are main difficulties that are encountered. Based on the principle that source of…

In the present paper, we propose a modification for a certain family of summation integral type operators. We study direct results on the modified operators. It is also observed that our modified operators have better estimates over the original operators.Key…

After a review of some properties of dual quaternions, De Moivre's and Euler's formulas for the matrices associated with these quaternions are studied. In special case, De Moivre's formula implies that there are uncountably many matrices of unit dual quaternions…

In this study, the important effects of anthropogenic factors on geophyte plant vegetation were found out in the Northeastern Region of Great Caucasian (around Azerbaijan) for the period of 1980-2008. In the study area (including five districts), 41 out of…

Conducting poly(2-aminothiazole), PAT, was synthesized in acetonitrile with tetrabutylammonium tetrafluoroborate, TBAFB, as supporting electrolyte via constant potential electrolysis, CPE. Glassy carbon, GC, electrode was modified by immersing the electrode in a DMSO solution of PAT. Preconcentration of copper on polymer…

GÖksu Delta is an important wetland where the GÖksu River reaches the sea in the eastern part of the town of Tasucu-Ice1. The delta is classified as a Wetland of International Importance according to the Ramsar Convention on Wetlands of…