نتایج جستجو برای: reflexive operator

تعداد نتایج: 100843  

2005
Thomas Geerinck Valentin Enescu Ioan Alexandru Salomie Sid Ahmed Berrabah Kenny Cauwerts Hichem Sahli

The aim is to improve the operability of an advanced demonstration platform incorporating reflexive teleoperated control concepts developed on a mobile robot system. The robot is capable of autonomously navigating in semi-structured environments. Reflexive tele-operation mode employs the robot extensive onboard sensor suite to prevent collisions with obstacles when the human operator assumes co...

A matrix $Pintextmd{C}^{ntimes n}$ is called a generalized reflection matrix if $P^{H}=P$ and $P^{2}=I$‎. ‎An $ntimes n$‎ ‎complex matrix $A$ is said to be a reflexive (anti-reflexive) matrix with respect to the generalized reflection matrix $P$ if $A=PAP$ ($A=-PAP$)‎. ‎In this paper‎, ‎we introduce two iterative methods for solving the pair of matrix equations $AXB=C$ and $DXE=F$ over reflexiv...

2009
Pascal Lefèvre

We prove that the notions of finite strict singularity, strict singularity and weak compactness coincide for operators defined on various spaces: the disc algebra, subspaces of C(K) with reflexive annihilator and subspaces of the Morse-TransueOrlicz space Mq (Ω, μ) with q > 2.

2009
Sigurd Ernst Walter Schneider Gert Smolka Holger Hermanns

We present a terminating tableau system for the modal logic K∗. K∗ extends the basic modal logic K with a reflexive transitive closure operator for relations and is a proper fragment of propositional dynamic logic. We investigate two different approaches to achieve termination, namely chain-based blocking and pattern-based blocking. Pattern based-blocking has not been applied to a modal logic w...

2005
V. Müller M. Zajac M. ZAJAC

A new example of a non-zero quasi-nilpotent operator T with reflexive commutant is presented. Norms ‖T n‖ converge to zero arbitrarily fast. Let H be a complex separable Hilbert space and let B(H) denote the algebra of all continuous linear operator on H. If T ∈ B(H) then {T}′ = {A ∈ B(H) : AT = TA} is called the commutant of T . By a subspace we always mean a closed linear subspace. If A ⊂ B(H...

2008
G. K. ELEFTHERAKIS

Two unital dual operator algebras A,B are called ∆-equivalent if there exists an equivalence functor F : AM → BM which “extends” to a ∗−functor implementing an equivalence between the categories ADM and BDM. Here AM denotes the category of normal representations of A and ADM denotes the category with the same objects as AM and ∆(A)-module maps as morphisms (∆(A) = A ∩A ). We prove that any such...

2003
DONG ZHE

In this paper, we first characterize reflexive one-sided A -submodules U of a unital operator algebra A in B(H ) completely. Furthermore we investigate the invariant subspace lattice Lat R and the reflexive hull Ref R, where R is the submodule generated by rank-one operators in U ; in particular, if L is a subspace lattice, we obtain when the rank-one algebra R of Alg L is big enough to determi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید