let h be a separable hilbert space and let b be the set of bessel sequences in h. by using several interesting results in operator theory we study some topological properties of frames and riesz bases by constructing a banach space structure on b. the convergence of a sequence of elements in b is de_ned and we determine whether important properties of the sequence is preserved under the con...

in chapter 1, charactrizations of fragmentability, which are obtained by namioka (37), ribarska (45) and kenderov-moors (32), are given. also the connection between fragmentability and its variants and other topics in banach spaces such as analytic space, the radone-nikodym property, differentiability of convex functions, kadec renorming are discussed. in chapter 2, we use game characterization...

‎in this article‎, ‎we have focused one some basic and productive information about the properties of spectrum and singular values related to compact operators which are ideals in a c*-algebra of bounded operators‎. ‎considering a two-sided connection between the family of symmetric gauge functions on sequence of singular values of compact operators and symmetric norms on finite dimensional ope...

abstract this study aimed at investigating the translation of interjections from english into persian in dubbing. to carry out this study the expressive secondary interjections found in the film four weddings and a funeral and their equivalent in persian dubbed version were analyzed through the strategies proposed by cuenca. the descriptive analysis of the corpus showed that (strategy b) i.e...

Introduction: Immunoblot is recognized as a sensitive and specific serological method for diagnosis of human hydatidosis. To analyze the reactivity of hydatid patients sera with the subunits of 2 major hydatid cyst fluid antigens, ( 5 and B ) immunoblot method was used. Material & Methods:In this regard, 100 sera ,of which 40 sera from patients with surgically diagnosed hydatidosis, 20 sera f...

nowadays, the development of anti cancer drugs is an important subject in pharmacology. bisphosphonates (b.p) are a great choice for design and production of the types of drugs which not only could perform as anti cancer agents but also could inhibit the function of acetyl cholinesterase (ache). ache hydrolyzes the acetylcholine (which is a neurotransmitter in nervous system) using the oh in i...

چکیده مخروط هایی که از c*- زیر جبرها به دست می آیند و مفهوم کاملاً مثبت بودن به وسیله ی: سیما رحیمی چر مهینی اگر a یک c^*- جبر و b یک ?-c?^* زیر جبر از a باشد بصورتی که b?a، آن گاه b، a را نرم دار می کند اگر برای هر x?m_n (a)، ?x?=sup{?rxc?:r^*,c?col_n (b),?r?,?c??1} در این پایان نامه مطالب مربوط به مخروط ها معرفی می شوند. مخروط ها بصورت زیر بیان می شوند: .{x?m_n (a)_sa:c^* x...