Results 111 to 120 of about 289,909 (310)

On characterizations of inner product spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
The characterizations of inner product norms given by Tapia [10] make use of a generalized inner product in normed spaces. I shall give simpler proofs and a sharper result using a more geometrical approach. 1. The generalized inner product of a norm. Let /: V -R be a function defined on the real vector space V.
openaire   +2 more sources

Bessel type inequalities for non-orthonormal families of vectors in inner product spaces

open access: yes, 2005
Some sharp Bessel type inequalities for non-orthonormal families of vectors in inner product spaces are given.
Dragomir, Sever S
core  

Partial inner product spaces and semi-inner product spaces

open access: yes, 1981
A comparison is made between the two objects mentioned in the title. Connections between them are threefold: (i) both are particular instances of dual pairs of locally convex spaces; (ii) many partial inner product spaces consist of chains or lattices of
Antoine, J.P   +3 more
core   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

open access: yesAdvanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič   +7 more
wiley   +1 more source

Reverses of the Schwarz Inequality in Inner Product Spaces Generalising a Klamkin-Mclenaghan Result

open access: yes, 2005
New reverses of the Schwarz inequality in inner product spaces that incorporate the classical Klamkin-McLenaghan result for the case of positive n−tuples are given.
Dragomir, Sever S
core  

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

open access: yesAdvanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann   +2 more
wiley   +1 more source

Determination method optimization for residual solvent in flaxseed oil

open access: yesShipin yu jixie
ObjectiveTo optimize the determination method for residual solvent in flaxseed oil.MethodsTest flaxseed oil samples are separated using a methyl polysiloxane capillary column containing 6% cyanopropyl-phenyl by headspace gas chromatograph (HS-GC ...
SHI Xincai   +4 more
doaj   +1 more source

On inner product spaces-II

open access: yesMathware & soft computing, 1995
Among normal linear spaces, the inner product spaces (i.p.s.) are particularly interesting. Many characterizations of i.p.s. among linear spaces are known using various functional equations. Three functional equations characterizations of i.p.s.
openaire   +6 more sources

On Toricelli's Problem in Inner Product Spaces

open access: yes, 1999
It is well known in Elementary Geometry the problem proposed and solved by Toricelli in the 17th century, to minimize the sum of the distances of a variable point to three fixed points in the plane.
Comănescu, Dan   +3 more
core  

Reverses of the Triangle Inequality via Selberg's and Boas-Bellman's Inequalities [PDF]

open access: yes, 2006
Reverses of the triangle inequality for vectors in inner product spaces via the Selberg and Boas-Bellman generalisations of Bessel’s inequality are given.
Dragomir, Sever S
core  

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