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Open Books on Contact Three OrbifoldsHerr, Daniel 01 September 2013 (has links)
In 2002, Giroux showed that every contact structure had a corresponding open book decomposition. This was the converse to a previous construction of Thurston and Winkelnkemper, and made open books a vital tool in the study of contact three-manifolds. We extend these results to contact orbifolds, i.e. spaces that are locally diffeomorphic to the quotient of a contact manifold and a compatible finite group action. This involves adapting some of the main concepts and constructions of three dimensional contact geometry to the orbifold setting.
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ARTIN PRESENTATIONS AND CLOSED 4-MANIFOLDSLi, Jun 10 August 2017 (has links)
No description available.
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Upsilon Invariant, Fibered Knots and Right-veering Open BooksHe, Dongtai January 2018 (has links)
Thesis advisor: Julia E. Grigsby / "Ozsváth, Stipsicz and Szabó define a one-parameter family {ϒᴋ(t)}t∈[₀,₂] of Heegaard Floer knot invariants for knots K ⊂ S³ . We generalize ϒᴋ (t) to knots in any" "rational homology sphere. We study the ϒ−invariant of a fibered knot. We prove that the ϒ−invariant can never reach its minimum slope if the monodromy of the fibration is not right-veering. / Thesis (PhD) — Boston College, 2018. / Submitted to: Boston College. Graduate School of Arts and Sciences. / Discipline: Mathematics.
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Stilleståndskostnad : Framtagning av kostnadsmodell för stilleståndskostnad vid haveri ur ett top-down perspektivEriksson, Adam, Bidebo, Christian January 2012 (has links)
När ett haveri inträffar uppstår direkt en mängd olika kostnader i form av underhållsinsatser, reparationsmaterial och administrationsinsatser. Utöver dessa kostnader förloras även de intäkter som maskinen genererar samt täckningen för de fasta och rörliga kostnaderna. Alla dessa kostnader skall täckas av de värdeskapande enheterna på företaget och påverkar det finansiella resultatet negativt. För att förbättra ett företags lönsamhet ökas antingen intäkterna eller så reduceras kostnaderna. Trots detta är det för många företag okänt hur stor kostnaden faktiskt är då en maskin står stilla. Arbetets uppdragsgivare är Konecranes Machine Tool Service (MTS), ett företag som erbjuder underhållstjänster och underhållslösningar till företag inom verkstadsindustrin. De vill utveckla sina metoder för att beräkna och motivera en maskins stilleståndskostnad vid haveri då de säljer sina tjänster. Författarna har med detta problem som bakgrund tagit fram en modell för att på ett enkelt sätt kunna beräkna denna kostnad. Arbetet har tagits fram via litteraturstudier inom området underhållsekonomi, och även produktkalkylering. Författarna har även haft kontakt med yrkesverksamma inom området och en undersökning har genomförts där ett antal fackmän har utvärderat modellen. Författarna har även utfört en utvärdering av modellen hos Atlas Copco i Fagersta. Resultatet av detta arbete är en teoretisk modell för att beräkna vad kostnaden för ett stillestånd hos en maskingrupp eller en maskin uppgår till. Modellen är utvecklad för att användas av MTS, men författarna ser även att modellen kan vara tillämpbar inom verkstadsindustrin. / When a breakdown occurs a variety of costs immediately starts to affect the company. Such as maintenance, repair materials and management effort. In addition to these costs also a loss of income occurs when a machine no longer is operating. This income should cover all the company costs. All these costs should be covered by the value adding units and the costs also affect the financial result of the company. To improve the financial results you either lower the costs or increase the revenue. Despite this, there are several companies that do not realize how large the cost of downtime actually is. Employer of this project is Konecranes Machine Tool Service (MTS). MTS is a global company who offer maintenance services and maintenance solutions to other companies within the engineering industry. Their purpose with this project is to get new inputs to develop a method to calculate the downtime cost of a machine or machine group. The authors have, with this background, developed a method to calculate the downtime cost in a simple way. This method has been developed by literature studies within the area of maintenance economy, and also product calculation. The authors also have been in contact with professionals in the field. Above this an evaluation of the model has been done at Atlas Copco in Fagersta. The result of this thesis is a theoretical method to calculate the cost of a machine or machine group within downtime caused by a breakdown. This method is developed to be used by MTS, but the authors also see that it could be implemented by companies within the engineering industry.
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The correlation between Open Book Management and job attitude of middle-level managersChien, Ju-Ying 25 August 2003 (has links)
The objectives of this research are, first to develop a greater understanding of open book management, secondly to survey the current national status of open book management, and thirdly to conduct a preliminary examination on how employee attitudes are directly influenced by the open book management intervention.
In this study, a questionnaire survey is conducted on 307 middle-level managers. The data is used to analyze the influence of the open book management over organization commitment and job satisfaction; then individual control variables, as well as business literacy training and pay-for-performance of the open book management are included as intervening variables to examine the effect.
The study findings include the following five aspects. First, the domestic companies are more conservative in the financial disclosure. Second, the financial disclosure has positive effect on intrinsic job satisfaction and this effect is reinforced if companies implement pay-for-performance programs. Third, unless companies implement pay-for-performance programs, the financial disclosure would have no effect on recognition to the organization and extrinsic job satisfaction. Fourth, financial disclosure has positive effect on centripetal force to the organization but no significant effect after taking the intervening variables into account. It means that the centripetal force to the organization is not influenced regardless of the increased level of financial disclosure or implementation of pay-for-performance programs. Fifth, the hypothesis that the effect of business literacy training will influence the relationship between financial disclosure and employee attitude is not confirmed
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Legendrian Knots And Open Book DecompositionsCelik Onaran, Sinem 01 July 2009 (has links) (PDF)
In this thesis, we define a new invariant of a Legendrian knot in a contact manifold using an open book decomposition supporting the contact structure. We define the support genus of a Legendrian knot L in a contact 3-manifold as the minimal genus of a page of an open book of M supporting the contact structure such that L sits on a page and the framings given by the contact structure and the page agree. For any topological link in 3-sphere we construct a planar open book decomposition whose monodromy is a product of positive Dehn twists such
that the planar open book contains the link on its page. Using this, we show any topological link, in particular any knot in any 3-manifold M sits on a page of a planar open book decomposition of M and we show any null-homologous loose
Legendrian knot in an overtwisted contact structure has support genus zero.
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Open Book Decompositions Of Links Of Quotient Surface SingularitiesYilmaz, Elif 01 June 2009 (has links) (PDF)
In this thesis, we write explicitly the open book decompositions of links of quotient
surface singularities that support the corresponding unique Milnor fillable contact
structures. The page-genus of these Milnor open books are minimal among all Milnor
open books supporting the corresponding unique Milnor fillable contact structures.
That minimal page-genus is called Milnor genus. In this thesis we also investigate
whether the Milnor genus is equal to the support genus for links of quotient surface
singularities. We show that for many types of the quotient surface singularities the
Milnor genus is equal to the support genus of the corresponding contact structure.
For the remaining we are able to find an upper bound for the support genus which
would be a step forward in understanding these contact structures.
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Analýza druhů kontraktů s 3PL / 3PL Contract Types AnalysisLichnovská, Eva January 2010 (has links)
Based on analysis of a particular outsourcing warehousing contract held between global company and 3PL, this thesis has three goals: evaluate current contract compared to standard contractual requirements, evaluate the option of switching the outsourcing relationship from open book to closed book approach, and suggest solution that would use the potential of the provider most. Break event point analysis, labour productivity analysis and method of managerial decision making were used in this thesis. Closed book and open book approaches were analysed in original way using previously mentioned methods. The recommendation to the company is to keep current open book contract with implementing quality KPI's and performance-based outsourcing in accordance with vested outsourcing approach.
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On the Casson-Walker invariant of 3-manifolds with genus one open book decompositions / 種数1の開本分解を持つ3次元多様体のCasson-Walker不変量についてMochizuki, Atsushi 25 March 2019 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(理学) / 甲第21545号 / 理博第4452号 / 新制||理||1639(附属図書館) / 京都大学大学院理学研究科数学・数理解析専攻 / (主査)教授 大槻 知忠, 教授 向井 茂, 教授 小野 薫 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DGAM
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Studies on Question Answering in Open-Book and Closed-Book Settings / オープンブックおよびクローズドブック設定における質問応答に関する研究Alkhaldi, Tareq Yaser Samih 25 September 2023 (has links)
京都大学 / 新制・課程博士 / 博士(情報学) / 甲第24930号 / 情博第841号 / 新制||情||141(附属図書館) / 京都大学大学院情報学研究科知能情報学専攻 / (主査)特定教授 黒橋 禎夫, 教授 河原 達也, 教授 鹿島 久嗣 / 学位規則第4条第1項該当 / Doctor of Informatics / Kyoto University / DFAM
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