Numerical radius attaining operators.
Numerical radius inequalities for Hilbert -modules
We present a new method for studying the numerical radius of bounded operators on Hilbert -modules. Our method enables us to obtain some new results and generalize some known theorems for bounded operators on Hilbert spaces to bounded adjointable operators on Hilbert -module spaces.
Numerical ranges of an operator on an indefinite inner product space.
Nuovi risultati sulla semicontinuità inferiore di certi funzionali integrali
Given an open subset of and a Borel function , conditions on are given which assure the lower semicontinuity of the functional with respect to different topologies.
O existenci spektra v Banachových algebrách
-абсолют и интегрируемые по Риману функции.
O integralnoj reprezentaciji linearnog operatora
O kompaktních množinách v lokálně konvexních prostorech
O -priestoroch spojitých funkcií
O některých Banachových problémech
O Schauderových bázích a jejich aplikacích
-Topologies on the Test Function Algebra
O совпадении пространств J(//(Omega)и J(// для плоских областей Omega, имеющих выходы на бесконечность
Ob odnoj interpolacionnoj zadače v klasse funkcij H^{p} v poluploskosti
Obata’s Rigidity Theorem for Metric Measure Spaces
We prove Obata’s rigidity theorem for metric measure spaces that satisfy a Riemannian curvaturedimension condition. Additionally,we show that a lower bound K for the generalizedHessian of a sufficiently regular function u holds if and only if u is K-convex. A corollary is also a rigidity result for higher order eigenvalues.
Observación sobre los teoremas de tipo Hahn-Banach.
Obstacles to bounded recovery.
Obtainment of the norm in Bergman spaces.
Of the structure of the Euler mapping
Of-groups of crossed products by groups acting on trees.