Between the von Neumann inequality and the Crouzeix conjecture
A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincid...
Ausführliche Beschreibung
Autor*in: |
Pagacz, Patryk [verfasserIn] |
---|
Format: |
E-Artikel |
---|---|
Sprache: |
Englisch |
Erschienen: |
2020 |
---|
Schlagwörter: |
---|
Umfang: |
28 |
---|
Übergeordnetes Werk: |
Enthalten in: CFD investigation on particle deposition in aligned and staggered ribbed duct air flows - Lu, Hao ELSEVIER, 2016, LAA, New York, NY |
---|---|
Übergeordnetes Werk: |
volume:605 ; year:2020 ; day:15 ; month:11 ; pages:130-157 ; extent:28 |
Links: |
---|
DOI / URN: |
10.1016/j.laa.2020.07.002 |
---|
Katalog-ID: |
ELV051199998 |
---|
LEADER | 01000caa a22002652 4500 | ||
---|---|---|---|
001 | ELV051199998 | ||
003 | DE-627 | ||
005 | 20230624172459.0 | ||
007 | cr uuu---uuuuu | ||
008 | 210910s2020 xx |||||o 00| ||eng c | ||
024 | 7 | |a 10.1016/j.laa.2020.07.002 |2 doi | |
028 | 5 | 2 | |a /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001116.pica |
035 | |a (DE-627)ELV051199998 | ||
035 | |a (ELSEVIER)S0024-3795(20)30325-6 | ||
040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
041 | |a eng | ||
082 | 0 | 4 | |a 690 |q VZ |
082 | 0 | 4 | |a 530 |a 620 |q VZ |
084 | |a 52.56 |2 bkl | ||
100 | 1 | |a Pagacz, Patryk |e verfasserin |4 aut | |
245 | 1 | 0 | |a Between the von Neumann inequality and the Crouzeix conjecture |
264 | 1 | |c 2020 | |
300 | |a 28 | ||
336 | |a nicht spezifiziert |b zzz |2 rdacontent | ||
337 | |a nicht spezifiziert |b z |2 rdamedia | ||
338 | |a nicht spezifiziert |b zu |2 rdacarrier | ||
520 | |a A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ. | ||
650 | 7 | |a secondary |2 Elsevier | |
650 | 7 | |a 47A25 |2 Elsevier | |
650 | 7 | |a 47A56 |2 Elsevier | |
650 | 7 | |a 47A20 |2 Elsevier | |
650 | 7 | |a 47A63 |2 Elsevier | |
650 | 7 | |a primary |2 Elsevier | |
700 | 1 | |a Pietrzycki, Paweł |4 oth | |
700 | 1 | |a Wojtylak, Michał |4 oth | |
773 | 0 | 8 | |i Enthalten in |n American Elsevier Publ |a Lu, Hao ELSEVIER |t CFD investigation on particle deposition in aligned and staggered ribbed duct air flows |d 2016 |d LAA |g New York, NY |w (DE-627)ELV014483130 |
773 | 1 | 8 | |g volume:605 |g year:2020 |g day:15 |g month:11 |g pages:130-157 |g extent:28 |
856 | 4 | 0 | |u https://doi.org/10.1016/j.laa.2020.07.002 |3 Volltext |
912 | |a GBV_USEFLAG_U | ||
912 | |a GBV_ELV | ||
912 | |a SYSFLAG_U | ||
912 | |a GBV_ILN_40 | ||
912 | |a GBV_ILN_2015 | ||
912 | |a GBV_ILN_2021 | ||
936 | b | k | |a 52.56 |j Regenerative Energieformen |j alternative Energieformen |q VZ |
951 | |a AR | ||
952 | |d 605 |j 2020 |b 15 |c 1115 |h 130-157 |g 28 |
author_variant |
p p pp |
---|---|
matchkey_str |
pagaczpatrykpietrzyckipawewojtylakmicha:2020----:eweteonuannqaiynter |
hierarchy_sort_str |
2020 |
bklnumber |
52.56 |
publishDate |
2020 |
allfields |
10.1016/j.laa.2020.07.002 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001116.pica (DE-627)ELV051199998 (ELSEVIER)S0024-3795(20)30325-6 DE-627 ger DE-627 rakwb eng 690 VZ 530 620 VZ 52.56 bkl Pagacz, Patryk verfasserin aut Between the von Neumann inequality and the Crouzeix conjecture 2020 28 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ. secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary Elsevier Pietrzycki, Paweł oth Wojtylak, Michał oth Enthalten in American Elsevier Publ Lu, Hao ELSEVIER CFD investigation on particle deposition in aligned and staggered ribbed duct air flows 2016 LAA New York, NY (DE-627)ELV014483130 volume:605 year:2020 day:15 month:11 pages:130-157 extent:28 https://doi.org/10.1016/j.laa.2020.07.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_40 GBV_ILN_2015 GBV_ILN_2021 52.56 Regenerative Energieformen alternative Energieformen VZ AR 605 2020 15 1115 130-157 28 |
spelling |
10.1016/j.laa.2020.07.002 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001116.pica (DE-627)ELV051199998 (ELSEVIER)S0024-3795(20)30325-6 DE-627 ger DE-627 rakwb eng 690 VZ 530 620 VZ 52.56 bkl Pagacz, Patryk verfasserin aut Between the von Neumann inequality and the Crouzeix conjecture 2020 28 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ. secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary Elsevier Pietrzycki, Paweł oth Wojtylak, Michał oth Enthalten in American Elsevier Publ Lu, Hao ELSEVIER CFD investigation on particle deposition in aligned and staggered ribbed duct air flows 2016 LAA New York, NY (DE-627)ELV014483130 volume:605 year:2020 day:15 month:11 pages:130-157 extent:28 https://doi.org/10.1016/j.laa.2020.07.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_40 GBV_ILN_2015 GBV_ILN_2021 52.56 Regenerative Energieformen alternative Energieformen VZ AR 605 2020 15 1115 130-157 28 |
allfields_unstemmed |
10.1016/j.laa.2020.07.002 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001116.pica (DE-627)ELV051199998 (ELSEVIER)S0024-3795(20)30325-6 DE-627 ger DE-627 rakwb eng 690 VZ 530 620 VZ 52.56 bkl Pagacz, Patryk verfasserin aut Between the von Neumann inequality and the Crouzeix conjecture 2020 28 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ. secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary Elsevier Pietrzycki, Paweł oth Wojtylak, Michał oth Enthalten in American Elsevier Publ Lu, Hao ELSEVIER CFD investigation on particle deposition in aligned and staggered ribbed duct air flows 2016 LAA New York, NY (DE-627)ELV014483130 volume:605 year:2020 day:15 month:11 pages:130-157 extent:28 https://doi.org/10.1016/j.laa.2020.07.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_40 GBV_ILN_2015 GBV_ILN_2021 52.56 Regenerative Energieformen alternative Energieformen VZ AR 605 2020 15 1115 130-157 28 |
allfieldsGer |
10.1016/j.laa.2020.07.002 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001116.pica (DE-627)ELV051199998 (ELSEVIER)S0024-3795(20)30325-6 DE-627 ger DE-627 rakwb eng 690 VZ 530 620 VZ 52.56 bkl Pagacz, Patryk verfasserin aut Between the von Neumann inequality and the Crouzeix conjecture 2020 28 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ. secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary Elsevier Pietrzycki, Paweł oth Wojtylak, Michał oth Enthalten in American Elsevier Publ Lu, Hao ELSEVIER CFD investigation on particle deposition in aligned and staggered ribbed duct air flows 2016 LAA New York, NY (DE-627)ELV014483130 volume:605 year:2020 day:15 month:11 pages:130-157 extent:28 https://doi.org/10.1016/j.laa.2020.07.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_40 GBV_ILN_2015 GBV_ILN_2021 52.56 Regenerative Energieformen alternative Energieformen VZ AR 605 2020 15 1115 130-157 28 |
allfieldsSound |
10.1016/j.laa.2020.07.002 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001116.pica (DE-627)ELV051199998 (ELSEVIER)S0024-3795(20)30325-6 DE-627 ger DE-627 rakwb eng 690 VZ 530 620 VZ 52.56 bkl Pagacz, Patryk verfasserin aut Between the von Neumann inequality and the Crouzeix conjecture 2020 28 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ. secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary Elsevier Pietrzycki, Paweł oth Wojtylak, Michał oth Enthalten in American Elsevier Publ Lu, Hao ELSEVIER CFD investigation on particle deposition in aligned and staggered ribbed duct air flows 2016 LAA New York, NY (DE-627)ELV014483130 volume:605 year:2020 day:15 month:11 pages:130-157 extent:28 https://doi.org/10.1016/j.laa.2020.07.002 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_40 GBV_ILN_2015 GBV_ILN_2021 52.56 Regenerative Energieformen alternative Energieformen VZ AR 605 2020 15 1115 130-157 28 |
language |
English |
source |
Enthalten in CFD investigation on particle deposition in aligned and staggered ribbed duct air flows New York, NY volume:605 year:2020 day:15 month:11 pages:130-157 extent:28 |
sourceStr |
Enthalten in CFD investigation on particle deposition in aligned and staggered ribbed duct air flows New York, NY volume:605 year:2020 day:15 month:11 pages:130-157 extent:28 |
format_phy_str_mv |
Article |
bklname |
Regenerative Energieformen alternative Energieformen |
institution |
findex.gbv.de |
topic_facet |
secondary 47A25 47A56 47A20 47A63 primary |
dewey-raw |
690 |
isfreeaccess_bool |
false |
container_title |
CFD investigation on particle deposition in aligned and staggered ribbed duct air flows |
authorswithroles_txt_mv |
Pagacz, Patryk @@aut@@ Pietrzycki, Paweł @@oth@@ Wojtylak, Michał @@oth@@ |
publishDateDaySort_date |
2020-01-15T00:00:00Z |
hierarchy_top_id |
ELV014483130 |
dewey-sort |
3690 |
id |
ELV051199998 |
language_de |
englisch |
fullrecord |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV051199998</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230624172459.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">210910s2020 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.laa.2020.07.002</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">/cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001116.pica</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV051199998</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0024-3795(20)30325-6</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">690</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">530</subfield><subfield code="a">620</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">52.56</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Pagacz, Patryk</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Between the von Neumann inequality and the Crouzeix conjecture</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">28</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">secondary</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">47A25</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">47A56</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">47A20</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">47A63</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">primary</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pietrzycki, Paweł</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wojtylak, Michał</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">American Elsevier Publ</subfield><subfield code="a">Lu, Hao ELSEVIER</subfield><subfield code="t">CFD investigation on particle deposition in aligned and staggered ribbed duct air flows</subfield><subfield code="d">2016</subfield><subfield code="d">LAA</subfield><subfield code="g">New York, NY</subfield><subfield code="w">(DE-627)ELV014483130</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:605</subfield><subfield code="g">year:2020</subfield><subfield code="g">day:15</subfield><subfield code="g">month:11</subfield><subfield code="g">pages:130-157</subfield><subfield code="g">extent:28</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.laa.2020.07.002</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2015</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2021</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">52.56</subfield><subfield code="j">Regenerative Energieformen</subfield><subfield code="j">alternative Energieformen</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">605</subfield><subfield code="j">2020</subfield><subfield code="b">15</subfield><subfield code="c">1115</subfield><subfield code="h">130-157</subfield><subfield code="g">28</subfield></datafield></record></collection>
|
author |
Pagacz, Patryk |
spellingShingle |
Pagacz, Patryk ddc 690 ddc 530 bkl 52.56 Elsevier secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary Between the von Neumann inequality and the Crouzeix conjecture |
authorStr |
Pagacz, Patryk |
ppnlink_with_tag_str_mv |
@@773@@(DE-627)ELV014483130 |
format |
electronic Article |
dewey-ones |
690 - Buildings 530 - Physics 620 - Engineering & allied operations |
delete_txt_mv |
keep |
author_role |
aut |
collection |
elsevier |
remote_str |
true |
illustrated |
Not Illustrated |
topic_title |
690 VZ 530 620 VZ 52.56 bkl Between the von Neumann inequality and the Crouzeix conjecture secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary Elsevier |
topic |
ddc 690 ddc 530 bkl 52.56 Elsevier secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary |
topic_unstemmed |
ddc 690 ddc 530 bkl 52.56 Elsevier secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary |
topic_browse |
ddc 690 ddc 530 bkl 52.56 Elsevier secondary Elsevier 47A25 Elsevier 47A56 Elsevier 47A20 Elsevier 47A63 Elsevier primary |
format_facet |
Elektronische Aufsätze Aufsätze Elektronische Ressource |
format_main_str_mv |
Text Zeitschrift/Artikel |
carriertype_str_mv |
zu |
author2_variant |
p p pp m w mw |
hierarchy_parent_title |
CFD investigation on particle deposition in aligned and staggered ribbed duct air flows |
hierarchy_parent_id |
ELV014483130 |
dewey-tens |
690 - Building & construction 530 - Physics 620 - Engineering |
hierarchy_top_title |
CFD investigation on particle deposition in aligned and staggered ribbed duct air flows |
isfreeaccess_txt |
false |
familylinks_str_mv |
(DE-627)ELV014483130 |
title |
Between the von Neumann inequality and the Crouzeix conjecture |
ctrlnum |
(DE-627)ELV051199998 (ELSEVIER)S0024-3795(20)30325-6 |
title_full |
Between the von Neumann inequality and the Crouzeix conjecture |
author_sort |
Pagacz, Patryk |
journal |
CFD investigation on particle deposition in aligned and staggered ribbed duct air flows |
journalStr |
CFD investigation on particle deposition in aligned and staggered ribbed duct air flows |
lang_code |
eng |
isOA_bool |
false |
dewey-hundreds |
600 - Technology 500 - Science |
recordtype |
marc |
publishDateSort |
2020 |
contenttype_str_mv |
zzz |
container_start_page |
130 |
author_browse |
Pagacz, Patryk |
container_volume |
605 |
physical |
28 |
class |
690 VZ 530 620 VZ 52.56 bkl |
format_se |
Elektronische Aufsätze |
author-letter |
Pagacz, Patryk |
doi_str_mv |
10.1016/j.laa.2020.07.002 |
dewey-full |
690 530 620 |
title_sort |
between the von neumann inequality and the crouzeix conjecture |
title_auth |
Between the von Neumann inequality and the Crouzeix conjecture |
abstract |
A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ. |
abstractGer |
A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ. |
abstract_unstemmed |
A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ. |
collection_details |
GBV_USEFLAG_U GBV_ELV SYSFLAG_U GBV_ILN_40 GBV_ILN_2015 GBV_ILN_2021 |
title_short |
Between the von Neumann inequality and the Crouzeix conjecture |
url |
https://doi.org/10.1016/j.laa.2020.07.002 |
remote_bool |
true |
author2 |
Pietrzycki, Paweł Wojtylak, Michał |
author2Str |
Pietrzycki, Paweł Wojtylak, Michał |
ppnlink |
ELV014483130 |
mediatype_str_mv |
z |
isOA_txt |
false |
hochschulschrift_bool |
false |
author2_role |
oth oth |
doi_str |
10.1016/j.laa.2020.07.002 |
up_date |
2024-07-06T19:36:08.851Z |
_version_ |
1803859597828554752 |
fullrecord_marcxml |
<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">ELV051199998</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230624172459.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">210910s2020 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1016/j.laa.2020.07.002</subfield><subfield code="2">doi</subfield></datafield><datafield tag="028" ind1="5" ind2="2"><subfield code="a">/cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001116.pica</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)ELV051199998</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(ELSEVIER)S0024-3795(20)30325-6</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">690</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">530</subfield><subfield code="a">620</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">52.56</subfield><subfield code="2">bkl</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Pagacz, Patryk</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Between the von Neumann inequality and the Crouzeix conjecture</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2020</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">28</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zzz</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">z</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">nicht spezifiziert</subfield><subfield code="b">zu</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">A new concept of a deformed numerical range W ρ ( T ) is introduced. Here T is a bounded linear operator or a matrix and ρ ∈ [ 1 , + ∞ ) is a parameter. Each W ρ ( T ) is a closed convex set that contains the spectrum of T. Furthermore, W ρ ( T ) is decreasing with respect to ρ and W 2 ( T ) coincides with the numerical range. It is also shown that W ρ ( T ) is contained in the closed unit disc if and only if T has a ρ unitary dilation in the sense of Nágy-Foiaş. The spectral constant of W ρ ( T ) is investigated, it is shown that it is monotone and continuous with respect to the parameter ρ.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">secondary</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">47A25</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">47A56</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">47A20</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">47A63</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">primary</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Pietrzycki, Paweł</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wojtylak, Michał</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">American Elsevier Publ</subfield><subfield code="a">Lu, Hao ELSEVIER</subfield><subfield code="t">CFD investigation on particle deposition in aligned and staggered ribbed duct air flows</subfield><subfield code="d">2016</subfield><subfield code="d">LAA</subfield><subfield code="g">New York, NY</subfield><subfield code="w">(DE-627)ELV014483130</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:605</subfield><subfield code="g">year:2020</subfield><subfield code="g">day:15</subfield><subfield code="g">month:11</subfield><subfield code="g">pages:130-157</subfield><subfield code="g">extent:28</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.laa.2020.07.002</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_40</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2015</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ILN_2021</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">52.56</subfield><subfield code="j">Regenerative Energieformen</subfield><subfield code="j">alternative Energieformen</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">605</subfield><subfield code="j">2020</subfield><subfield code="b">15</subfield><subfield code="c">1115</subfield><subfield code="h">130-157</subfield><subfield code="g">28</subfield></datafield></record></collection>
|
score |
7.3996468 |