Results 121 to 130 of about 235 (196)

Pseudo Numerical Ranges and Spectral Enclosures. [PDF]

open access: yesComplex Anal Oper Theory, 2022
Gerhat B, Tretter C.
europepmc   +1 more source

On Hardy's inequality and eigenvalue distributions

open access: yes, 1993
We show a direct proof for the generalized Hardy’s inequality obtained by the first author Math. Nachr. 126, 281-300, 1986. Our techniques are elementary and work in the limit case which was not covered in [loc. cit.].
Resina, Ivam, Cobos Díaz, Fernando
core  

A Classical Formulation of Quantum Theory? [PDF]

open access: yesEntropy (Basel), 2022
Braasch WF, Wootters WK.
europepmc   +1 more source

Hardy’s inequality for the fractional powers of a discrete Laplacian

open access: yes, 2018
Ciaurri, Óscar [0000-0002-1695-3311]   +1 more
core   +1 more source

On fractional Hardy-type inequalities in general open sets

open access: yes
We show that, when sp > N, the sharp Hardy constant hs,p of the punctured space ℝN \ {0} in the Sobolev–Slobodeckiĭ space provides an optimal lower bound for the Hardy constant hs,p(Ω) of an open set Ω ⊂ ℝN.
Francesca Prinari   +3 more
core   +1 more source

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