Search results for "DOMAIN"
showing 10 items of 2485 documents
Partial O*-Algebras
2002
This chapter is devoted to the investigation of partial O*-algebras of closable linear operators defined on a common dense domain in a Hilbert space. Section 2.1 introduces of O- and O*-families, O- and O*-vector spaces, partial O*-algebras and O*-algebras. Partial O*-algebras and strong partial O*-algebras are defined by the weak and the strong multiplication. Section 2.2 describes four canonical extensions (closure, full-closure, adjoint, biadjoint) of O*-families and defines the notions of closedness and full-closedness (self-adjointness, integrability) of O*-families in analogy with that of closed (self-adjoint) operators. Section 2.3 deals with two weak bounded commutants M′w and M′qw …
Quasihyperbolic boundary conditions and capacity: Uniform continuity of quasiconformal mappings
2005
We prove that quasiconformal maps onto domains which satisfy a suitable growth condition on the quasihyperbolic metric are uniformly continuous when the source domain is equipped with the internal metric. The obtained modulus of continuity and the growth assumption on the quasihyperbolic metric are shown to be essentially sharp. As a tool, we prove a new capacity estimate.
Homeomorphisms of finite distortion: discrete length of radial images
2008
AbstractWe study homeomorphisms of finite exponentially integrable distortion of the unit ball Bn onto a domain Ω of finite volume. We show that under such a mapping the images of almost all radii (in terms of a gauge dimension) have finite discrete length. We also show that our dimension estimate is essentially sharp.
Solutions to the 1-harmonic flow with values into a hyper-octant of the N-sphere
2013
Abstract We announce existence results for the 1-harmonic flow from a domain of R m into the first hyper-octant of the N -dimensional unit sphere, under homogeneous Neumann boundary conditions. The arguments rely on a notion of “geodesic representative” of a BV-vector field on its jump set.
The Unbalanced Linguistic Aggregation Operator in Group Decision Making
2012
Published version of an article in the journal: Mathematical problems in engineering. Also available from Hindawi: http://dx.doi.org/10.1155/2012/619162 Many linguistic aggregation methods have been proposed and applied in the linguistic decision- making problems. In practice, experts need to assess a number of values in a side of reference domain higher than in the other one; that is, experts use unbalanced linguistic values to express their evaluation for problems. In this paper, we propose a new linguistic aggregation operator to deal with unbalanced linguistic values in group decision making, we adopt 2-tuple representation model of linguistic values and linguistic hierarchies to expres…
Frequency domain control based on quantitative feedback theory for vibration suppression in structures equipped with magnetorheological dampers
2009
This is an author-created, un-copyedited version of an article accepted for publication in Smart Materials and Structures. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at http://dx.doi.org/10.1088/0964-1726/18/9/095041 This paper addresses the problem of designing quantitative feedback theory (QFT) based controllers for the vibration reduction in a structure equipped with an MR damper. In this way, the controller is designed in the frequency domain and the natural frequencies of the structure can be directly accounted for in the process. T…
Spectral adaptation of hyperspectral flight lines using VHR contextual information
2014
Abstract: Due to technological constraints, hyperspectral earth observation imagery are often a mosaic of overlapping flight lines collected in different passes over the area of interest. This causes variations in aqcuisition conditions such that the reflected spectrum can vary significantly between these flight lines. Partly, this problem is solved by atmospherical correction, but residual spectral differences often remain. A probabilistic domain adaptation framework based on graph matching using Hidden Markov Random Fields was recently proposed for transforming hyperspectral data from one image to better correspond to the other. This paper investigates the use of scale and angle invariant…
Ar veselību saistītas metaforas rakstos par ekonomiskiem jautājumiem
2018
Konceptuālo metaforu teorija izsaka iespējamību par universālu metaforu eksistenci dažādās valodās. Bakalaura darba mērķis bija identificēt veselības metaforas rakstos par ekonomikas jautājumiem angļu un latviešu valodā un noskaidrot kā tās konceptualizē ar ekonomiku saistītas problēmas. Pētījums ir balstīts uz konceptuālās metaforu teorijas. Metaforu identifikācijai kontekstā tika izmantota deduktīvā metode un izpētīja tās no kvalitatīvās un kvantitatīvās perspektīvas. Tika atklāts, ka visbiežāk sastopamākās veselības metaforas bija problēma ir slimība/traucējumi un uzlabojums ir ārstēšana/atveseļošanās ar metaforiskajām izpausmēm ‘vājums’ un ‘atveseļošanās’. Rezultāti atklāja, ka veselība…
Metaforu lietojums mārketinga blogos
2016
Šī pētījuma mērķis bija analizēt metaforu veidus, kas ir izmantoti mārketinga blogos, noteikt to izmantošanas mērķi mārketinga blogu ierakstos un noteikt avota un mērķa domēnus, kurus var atrast identificētajās metaforās. Pētījuma metode bija diskursa analīze. Rezultāti liecina, ka visplašāk izmantotais metaforu veids blogu ierakstos ir konceptuālās metaforas; kam seko “tradicionālās” metaforas, taču tās izmanto retāk. Mērķa domēni, kas tiek skaidroti, izmantojot metaforas, ir saistīti ar mārketinga terminoloģiju; avotu domēni, kas visplašāk tiek izmantoti paskaidrojumam ir daba, dzīvnieku/cilvēku uzvedība un ceļojums. Metaforas izmanto mārketinga blogos, lai izskaidrotu konkrētu mārketinga…
If I Had My Life to Live over Again...
1995
The study was a replication of DeGenova’s (1992) study, aiming at identifying what elderly people would do differently if they had their life to live over. The Ss were 174 retired women (56%) and men (44%) born in 1927 or 1929, residing in urban areas. The subjects completed a questionnaire, Life Revision Index (LRI), developed by DeGenova (1992), assessing life revision in the areas of friends, family, work, education, leisure, religion, and health. The results show that education and leisure enjoyment are the areas with the greatest amount of desired change. More than 70% of the subjects would spent more time in education, if they had their lives to live over again. More than sixty percen…