positive element

In functional analysis, a hermitian element A of a C*-algebra is a positive element if its spectrum consists of positive real numbers. Equivalently, A has a hermitian square root, that is an element B of the C*-algebra satisfying B*=B and B²=A. If A is a bounded linear operator on a Hilbert space H, then this notion coincides with the condition that

\langle Ax,x\rangle

be positive for every vector x in H.

<< Previous

Word Browser

Next >>

arado ar 240
university of urbino
apple juice
carvetii
venutius
liberal party (egypt)
hornpipe
quahog
set (disambiguation)
uss ponchatoula (ao 148)
northwood (tv series)

blohm & voss bv 40
inglfur arnarson
set dance
grignard reagent
signaling gateway
focke wulf fw 189
step dance
slip jig
soft phone
streamliner
johnstown flood

propafenone
unital
slipstream
positive linear functional
henschel hs 123
callmanager
heinkel he 51
list of films: u.s. box office bombs
mg 17 machine gun
pure state
hawaii's story by hawaii's queen

john forbes (general)
state (functional analysis)
chant
messerschmitt me 263
southern strategy
t pyxidis
extreme point
john forbes
superstition mountains
160 (number)
list of national parks of japan