Semigroup product formulas and addition of unbounded operators

Semigroup Product Formulas and Addition of Unbounded Operators

some properties of fuzzy hilbert spaces and norm of operators

in this thesis, at first we investigate the bounded inverse theorem on fuzzy normed linear spaces and study the set of all compact operators on these spaces. then we introduce the notions of fuzzy boundedness and investigate a new norm operators and the relationship between continuity and boundedness. and, we show that the space of all fuzzy bounded operators is complete. finally, we define...

Polynomially Unbounded Product of Two Polynomially Bounded Operators

where S is a unilateral forward shift of infinite multiplicity, S∗ is its adjoint, and Yα is a matrix (αi+jCi+j ), with {αk}k∈N a sequence of complex numbers, and {Ck}k∈N a family of operators satisfying the “canonical anticommutation relations”. We exhibit a sequence {αk} such that T is polynomially bounded but T⊗T is not. This shows that the product of two commuting polynomially bounded opera...

extensions, minimality and idempotents of certain semigroup compactifications

در فصل اول مقدمات و پیش نیازهای لازم برای فصل های بعدی فراهم گردیده است . در فصل دوم مساله توسیع مورد توجه قرار گرفته و ابتدا شرایطی که تحت آن از یک فشرده سازی نیم گروهی خاص یک زیرگروه نرمال بسته یک گروه به یک فشرده سازی متناظر با فشرده سازی اولیه برای گروه رسید مورد بررسی قرار گرفته و سپس ارتیاط بین ساختارهای مختلف روی این دو فشرده سازی از جمله ایده آل های مینیمال چپ و راست و... مورد بررسی قرا...

Asymptotic Unbounded Root Loci - . Formulas and Computation

: George N. Saridis (h4’62-SM72-F‘78) was born I in Athens, Greece. He received the diploma in mechanical and electrical engineering from the National Techca l University of Athens, Athens. Greece, in 1955, and the M.S.E.E. and Ph.D. degrees from Purdue University. West Lafayette, IN. in 1962. and 1965. respectively. From 1955 to 1961 he was an Instructor in the Department of Mechanical and Ele...