Search results for "RAID"

showing 10 items of 122 documents

The proof of Birman’s conjecture on singular braid monoids

2003

Let B_n be the Artin braid group on n strings with standard generators sigma_1, ..., sigma_{n-1}, and let SB_n be the singular braid monoid with generators sigma_1^{+-1}, ..., sigma_{n-1}^{+-1}, tau_1, ..., tau_{n-1}. The desingularization map is the multiplicative homomorphism eta: SB_n --> Z[B_n] defined by eta(sigma_i^{+-1}) =_i^{+-1} and eta(tau_i) = sigma_i - sigma_i^{-1}, for 1 <= i <= n-1. The purpose of the present paper is to prove Birman's conjecture, namely, that the desingularization map eta is injective.

20F36 57M25. 57M27[ MATH.MATH-GT ] Mathematics [math]/Geometric Topology [math.GT]Monoid[ MATH.MATH-GR ] Mathematics [math]/Group Theory [math.GR]Braid group20F36Group Theory (math.GR)01 natural sciencesBirman's conjecture[MATH.MATH-GR]Mathematics [math]/Group Theory [math.GR]CombinatoricsMathematics - Geometric TopologyMathematics::Group Theory57M25. 57M27Mathematics::Category Theory[MATH.MATH-GT]Mathematics [math]/Geometric Topology [math.GT]FOS: MathematicsBraid0101 mathematics[MATH.MATH-GR] Mathematics [math]/Group Theory [math.GR][MATH.MATH-GT] Mathematics [math]/Geometric Topology [math.GT]MathematicsConjecturedesingularization010102 general mathematicsMultiplicative functionSigmaGeometric Topology (math.GT)singular braidsInjective function010101 applied mathematicsHomomorphismGeometry and TopologyMathematics - Group TheoryGeometry & Topology
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Latvijas Universitātes 78. starptautiskās zinātniskās konferences sekcijas “Nezināmās lappuses Latvijas un reģiona vēsturē: iespējas” referātu tēzes

2020

In 2020 for the first time a PhD history students’ session was organised as part of the 78th Annual International Conference of the University of Latvia. 8 doctoral students applied for participation under the overall session title “The Unknown Pages in the History of Latvia and the Region: Opportunities”. The reports cover various social aspects in the history of Latvia and the Region, the role of women and individuals in historical processes and economic history, the operation of international abstinence organizations, the participation of Latvian volunteers in the Spanish Civil War and the language issues in television broadcasts in the Latvian SSR. This volume contains the abstracts of …

:HUMANITIES and RELIGION::History and philosophy subjects::History subjects::History [Research Subject Categories]sieviešu un indivīdu lomatelevīzijas raidījumu valodas problemātika Latvijas PSRLatvijas brīvprātīgie Spānijas pilsoņu karāstarptautiskās atturības organizācijasLatvijas vēsture
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Finite Braid Groups for the SU(2) Knizhnik Zamolodchikov Equation

1995

We consider the monodromy representations of the mapping class group B 4 of the 2-sphere with 4 punctures acting in the solutions space of the zu(2) Knizhnik-Zamolodchikov equation [3] (note that the monodromy representations of the braid group have a more general geometric definition [4]).

AlgebraHigh Energy Physics::TheoryMonodromyMathematics::Quantum AlgebraBraid groupSpace (mathematics)Special unitary groupMapping class groupMathematicsKnizhnik–Zamolodchikov equations
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Džo Rogana pieredze: veidojot vīrišķību vai viela pārdomām

2021

Savā bakalaura disertācijā ‘Džo Rogana pieredze: Veidojot Vīrišķību vai Viela Pārdomām’ es koncentrējos uz jauniem, pieaugušiem, latviešu vīriešiem un viņu pārdomām par Džo Rogana raidieraksti, un par vīrišķības atspoguļojuma aktualitāti sociālajos medijos. Tēzes mērķis ir saprast, kāpēc cilvēki skatās un klausās Džo Rogana raidierakstu, vai par dzimumu bieži tiek runāts, kā Rogans runā par vīrišķību un tās nozīmi mūsdienu laikā, un vai dalībnieki pievērš tam uzmanību, klausoties raidierkastu. Šajā pētījumā aplūkota labi pazīstama riadieraksta un raidierakstītāja iekšējā pasaule no klausītāja viedokļa, kas saņēmusi negatīvu atgriezenisko saiti dzimumu normu ziņā.

AntropoloģijaRaidierakstiSociālie MedijiVīrišķībaDzimumu ekspektācijasDžo Rogans
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Bēgļu izraidīšanas vai atgriešanas aizlieguma eksteritoriālais raksturs atklātajā jūrā kā starptautiskā paražu tiesību norma

2019

Darbā tiek aplūkota bēgļu izraidīšanas vai atgriešanas aizlieguma teritoriālā piemērojamība, izvērtējot tā darbību ārpus valstu robežām atklātajā jūrā. Saistībā ar bēgļu ierašanās pa jūru izpausmi mūdienās, īpaši nozīmīga ir bēgļu izraidīšanas vai atgriešanas aizlieguma attiecināmība uz masveida pieplūduma situācijām. Vienlaikus būtiski ir arī aplūkot vajāšanas satura paplašināšanos mūsdienās, izvērtējot gan tiesu praksi, gan tā mijiedarbību ar cilvēktiesībām. Tālāk tiek izvērtēta trešās drošās valsts koncepta nozīme bēgļu izraidīšanas vai atgriešanas piemērošanas robežu noteikšanā. Savukārt darba beigās autore analizē bēgļu izraidīšanas vai atgriešanas eksteritoriālo piemērojamību atklātaj…

Bēgļu izraidīšanas vai atgriešanas aizliegumsStarptautiskā paražu tiesību normaAtklātā jūraMasveidu pielūduma situācijaDrošā trešā valstsJuridiskā zinātne
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Résistance au glyphosate, ce qui est prouvé

2007

National audience

CULTURE PERENNEIVRAIE RAIDEComputingMilieux_MISCELLANEOUSLOLIUM RIGIDIUM[SDV.BV.PEP] Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy
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Réponses des cellules de Nicotiana tabacum à des molécules microbiennes : évènements de signalisation précoce, influence de la dynamique membranaire …

2018

In their natural environment plants are in close interaction with beneficial, neutral, or pathogenic microbes, which are highly dependent on carbon resources exuded by plant roots. Sugar transport, which is a key process of plant physiology, is essential to support the fate of plant-microbe interactions. During evolution, plants have acquired the ability to perceive microbial molecules, initiating specific signal transduction cascades and leading to adapted response for microbe lifestyles (avirulent, virulent, or benefic). Plant survival will depend on the nature of the induced mechanisms. My PhD work, carried out on a simplified experimental system, contributes to the understanding of mech…

Chitotetrasacchraides[SDV.SA]Life Sciences [q-bio]/Agricultural sciences[SDV.SA] Life Sciences [q-bio]/Agricultural sciencesInteractions plantes-MicroorganismesCryptogéineChitotétrasacchraidesNicotiana tabacum[SDV.EE.IEO] Life Sciences [q-bio]/Ecology environment/SymbiosisTrafic membranaireTransport de sucresSugar transportPlant-Microbe interactions[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal BiologyCryptogeinMembrane dynamics[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis
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Generalized Braid Groups and Mapping Class Gropus

1997

Given a chord system of D2, we associate a generalized braid group, a surface and a homomorphism from this braid group to the mapping class group of the surface. We disprove a conjecture stated in an article by Perron and Vannier by showing that generally this homomorphism is not injective.

CombinatoricsAlgebra and Number TheoryConjectureBraid groupLawrence–Krammer representationHomomorphismBraid theoryInjective functionMapping class groupGraphMathematicsJournal of Knot Theory and Its Ramifications
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Hurwitz spaces of coverings with two special fibers and monodromy group a Weyl group of typeBd

2012

f! Y; where is a degree-two coverings with n1 branch points and branch locus D and f is a degree-d coverings with n2 points of simple branching and two special points whose local monodromy is given by e and q, respectively. Furthermore the covering f has monodromy group Sd and f. D /\ D fD? where D f denotes the branch locus of f . We prove that the corresponding Hurwitz spaces are irreducible under the hypothesis n2 s r dC 1.

CombinatoricsAlgebraWeyl groupsymbols.namesakeMonodromyGeneral MathematicssymbolsSettore MAT/03 - GeometriaHurwitz spaces special fibers branched coverings Weyl group of type B_d monodromy braid moves.Locus (mathematics)Branch pointMathematicsPacific Journal of Mathematics
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Metric properties of the group of area preserving diffeomorphisms

2001

Area preserving cliffeoinorpliisms of the 2-disk which are identity near the boundary form a group D2 wllich can be equipped, usin-g tlhe L2nlorm on its Lie algebra, with a right invariant metric. Witll tllis metric the diameter of D2 is infinite. In this paper we sl-iow that D2 contains quasiisometric embeddings of any finitely generated free group and any finitely generated abelian free group.

CombinatoricsApplied MathematicsGeneral MathematicsQuasi-isometryLie algebraFree groupBraidFinitely-generated abelian groupAbelian groupInvariant (mathematics)MathematicsTransactions of the American Mathematical Society
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