Relevant bibliographies by topics / Billard projectif

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Billard projectif'

Author: Grafiati
Published: 23 June 2021
Last updated: 29 July 2025

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Journal articles on the topic "Billard projectif"

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Stachel, Hellmuth. "A Triple of Projective Billiards." KoG, no. 26 (2022): 44–51. http://dx.doi.org/10.31896/k.26.4.

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A projective billiard is a polygon in the real projective plane with a circumconic and an inconic. Similar to the classical billiards in conics, the intersection points between the extended sides of a projective billiard are located on a family of conics which form the associated Poncelet grid. We extend the projective billiard by the inner and outer billiard and disclose various relations between the associated grids and the diagonals, in particular other triples of projective billiards.
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Glutsyuk, Alexey. "On rationally integrable planar dual multibilliards and piecewise smooth projective billiards." Nonlinearity 37, no. 6 (2024): 065002. http://dx.doi.org/10.1088/1361-6544/ad3606.

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Abstract The billiard flow in a planar domain Ω acts on the tangent bundle T R 2 | Ω as geodesic flow with reflections from the boundary. It has the trivial first integral: squared modulus of the velocity. Bolotin’s conjecture, now a joint theorem of Bialy, Mironov and the author, deals with those billiards whose flow admits an additional integral that is polynomial in the velocity and whose restriction to the unit tangent bundle is non-constant. It states that (1) if the boundary of such a billiard is C 2-smooth, nonlinear and connected, then it is a conic; (2) if it is piecewise C 2-smooth a
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Park, Jung-kil, and Jaebyung Park. "Intelligent Carom Billiards Assistive System for automatic solution path generation and actual path prediction with principal component analysis-based ball motion detection." International Journal of Advanced Robotic Systems 19, no. 4 (2022): 172988062211188. http://dx.doi.org/10.1177/17298806221118865.

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This article proposes an Intelligent Carom Billiards Assistive System for a novice at Carom Billiards. Since a novice player is very difficult to find the solution paths of the cue ball, the ICBAS automatically calculates the solution paths for given ball configuration which is detected by a monocular vision and displays them in a guidance monitor. For rapid and systematically calculating the solution paths, the five and half system that is the most representative method in the field of billiard is implemented. In addition, the paths of the cue ball changed by the direction of the cue stick ar
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BISWAS, DEBABRATA. "EVOLUTION OF LIOUVILLE DENSITY IN BILLIARDS: THE QUANTUM CONNECTION." Modern Physics Letters B 20, no. 14 (2006): 795–813. http://dx.doi.org/10.1142/s0217984906011232.

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The study of classical Liouville density arises naturally in chaotic systems where a probabilistic treatment is more appropriate. In this review, we show that the evolution of a density projected onto the configuration space has a quantum connection in billiard systems. The eigenvalues and eigenfunctions of the concerned evolution operator have an approximate one-to-one correspondence with the quantum Neumann eigenvalues and eigenfunctions. For exceptional billiard shapes such as the rectangle, this correspondence is even exact. Despite the approximate nature of the correspondence, we demonstr
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TABACHNIKOV, SERGE. "Introducing projective billiards." Ergodic Theory and Dynamical Systems 17, no. 4 (1997): 957–76. http://dx.doi.org/10.1017/s0143385797086239.

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We introduce and study a new class of dynamical systems, the projective billiards, associated with a smooth closed convex plane curve equipped with a smooth field of transverse directions. Projective billiards include the usual billiards along with the dual, or outer, billiards.
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Dietz, B. "Relativistic Quantum Billiards with Threefold Rotational Symmetry: Exact, Symmetry-Projected Solutions for Equilateral Neutrino Billiard." Acta Physica Polonica A 140, no. 6 (2021): 473–86. http://dx.doi.org/10.12693/aphyspola.140.473.

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POPOV, G., and P. TOPALOV. "Discrete analog of the projective equivalence and integrable billiard tables." Ergodic Theory and Dynamical Systems 28, no. 5 (2008): 1657–84. http://dx.doi.org/10.1017/s014338570700096x.

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AbstractA class of discrete dynamical systems called projectively (or geodesically) equivalent Lagrangian systems is defined. We prove that these systems admit families of integrals. In the case of geodesically equivalent billiard tables, these integrals are pairwise commuting. We describe a family of geodesically equivalent billiard tables on surfaces of constant curvature. This is a special case of the so-called ‘Liouville billiard tables’.
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Takeuchi, Airi, and Lei Zhao. "Projective integrable mechanical billiards." Nonlinearity 37, no. 1 (2023): 015011. http://dx.doi.org/10.1088/1361-6544/ad0d6f.

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Abstract In this paper, we use the projective dynamical approach to integrable mechanical billiards as in (Zhao 2021 Commun. Contemp. Math. 24 2150085) to establish the integrability of natural mechanical billiards with the Lagrange problem, which is the superposition of two Kepler problems and a Hooke problem, with the Hooke center at the middle of the Kepler centers, as the underlying mechanical systems, and with any finite combinations of confocal conic sections with foci at the Kepler centers as the reflection wall, in the plane, on the sphere, and in the hyperbolic plane. This covers many
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Tabachnikov, Serge. "On cusps of caustics by reflection in two dimensional projective Finsler metrics." Theoretical and Applied Mechanics, no. 00 (2025): 4. https://doi.org/10.2298/tam250109004t.

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Given a projective Finsler metric in a convex domain in the projective plane, that is, a metric in which geodesics are straight lines, consider the respective Finsler billiard system. Choose a generic point inside the table and consider the billiard trajectories that start at this point and undergo N reflection off the boundary. The envelope of the resulting 1-parameter family of straight lines is the Nth caustic by reflection. We prove that, for every N, it has at least four cusps, generalizing a similar result for Euclidean metric, obtained recently jointly with G. Bor.
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JULIEN, ANTOINE. "Complexity and cohomology for cut-and-projection tilings." Ergodic Theory and Dynamical Systems 30, no. 2 (2009): 489–523. http://dx.doi.org/10.1017/s0143385709000194.

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AbstractWe consider a subclass of tilings: the tilings obtained by cut-and-projection. Under somewhat standard assumptions, we show that the natural complexity function has polynomial growth. We compute its exponentαin terms of the ranks of certain groups which appear in the construction. We give bounds forα. These computations apply to some well-known tilings, such as the octagonal tilings, or tilings associated with billiard sequences. A link is made between the exponent of the complexity, and the fact that the cohomology of the associated tiling space is finitely generated over ℚ. We show t
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Dissertations / Theses on the topic "Billard projectif"

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Fierobe, Corentin. "Billards projectifs et complexes, orbites périodiques et systèmes Pfaffiens." Thesis, Lyon, 2021. http://www.theses.fr/2021LYSEN014.

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Le billard est un système dynamique décrivant le mouvement d’une particule sans masse ni volume qui se déplace sans frottements à l’intérieur d’un domaine délimité par une paroi réfléchissante. Elle est réfléchie sur la paroi selon la loi angle d’incidence = angle de réflexion. Lorsque sa trajectoire se répète on parle d’orbite périodique. Cette thèse s’intéresse à deux généralisations de ces billards : les billards projectifs et les billards complexes. Les billards projectifs, introduits et étudiés par Tabachnikov, se présentent comme des domaines dont le bord est muni d’un champ de droites t
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HO, MU-YUN, and 何睦芸. ""Here We Stand": An Art/Action Project on the Cohered Emotions of the Community of Human Billboard Workers and the Effects on Broader Social Aspects." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/73u272.

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碩士<br>國立臺北藝術大學<br>藝術跨域研究所<br>107<br>This Art/Action project comprises first and foremost of an intervention in the human billboard workers’ community, and, as such, it constitutes a resistance to the alienation of their labor and institutes an alternative understanding for their bodily emancipation. In capitalist societies, the human billboard industry operates at the edge of breaking the law, such that the institutional imputation of work-related risks to individual workers deprives the workers of their labor-value and renders them subordinate to the very advertising signs that they hold—dev
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Stasko, Carly. "A Pedagogy of Holistic Media Literacy: Reflections on Culture Jamming as Transformative Learning and Healing." Thesis, 2009. http://hdl.handle.net/1807/18109.

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This qualitative study uses narrative inquiry (Connelly & Clandinin, 1988, 1990, 2001) and self-study to investigate ways to further understand and facilitate the integration of holistic philosophies of education with media literacy pedagogies. As founder and director of the Youth Media Literacy Project and a self-titled Imagitator (one who agitates imagination), I have spent over 10 years teaching media literacy in various high schools, universities, and community centres across North America. This study will focus on my own personal practical knowledge (Connelly & Clandinin, 1982) as a cult
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Books on the topic "Billard projectif"

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Dragović, Vladimir. Poncelet Porisms and Beyond: Integrable Billiards, Hyperelliptic Jacobians and Pencils of Quadrics. Springer Basel AG, 2011.

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Dunn, Alan. Bellgrove. Alan Dunn, 1991.

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Steichen, James. 1939–1940. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190607418.003.0011.

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From 1939 to 1940 Balanchine and Kirstein continued their independent activities. Balanchine and Zorina took on additional projects on the stage and screen, including a film adaptation of On Your Toes, the romantic melodrama I Married an Adventuress, and a new stage musical by Irving Berlin, Louisiana Purchase. Balanchine also created dances for the short-lived revue Keep Off the Grass as well as serving as producer and director of Cabin in the Sky, for which he collaborated with Vernon Duke and choreographer Katherine Dunham and her dance company. Kirstein continued to tour with the company n
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Book chapters on the topic "Billard projectif"

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Chen, Zhikang, and Wei Qi Yan. "Real-Time Pose Recognition for Billiard Players Using Deep Learning." In Deep Learning, Reinforcement Learning, and the Rise of Intelligent Systems. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-1738-9.ch010.

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In this book chapter, the authors propose a method for player pose recognition in billiards matches by combining keypoint extraction and an optimized transformer. Given that those human pose analysis methods usually require high labour costs, the authors explore deep learning methods to achieve real-time, high-precision pose recognition. Firstly, they utilize human key point detection technology to extract the key points of players from real-time videos and generate key points. Then, the key point data is input into the transformer model for pose analysis and recognition. In addition, the auth
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"Marketing: The project as a billboard." In Perspectives on Projects. Routledge, 2010. http://dx.doi.org/10.4324/9780203891636-14.

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Yang, Boning, and Wei Qi Yan. "Real-Time Billiard Shot Stability Detection Based on YOLOv8." In Deep Learning, Reinforcement Learning, and the Rise of Intelligent Systems. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-1738-9.ch008.

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This book chapter presents a real-time system for detecting the stability of a player's billiard shot, based on the YOLOv8 neural network. The system comprises a real-time object detection model and a real-time slope monitoring system. The model focuses on detecting four classes: The cue ball, hand, cue stick tip, and the bridge hand (hand support point). The project involved iterative model training on a custom dataset, eventually achieving a YOLOv8 model with 95% accuracy. The stability of a player's shot is detected by simulating slope change of cue stick during aiming, using the cue stick
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Carvalho, Vitor, Celina Pinto Leão, Filomena Soares, and Maria Manuela Cruz-Cunha. "Games Development for Pedagogical and Educational Purposes." In Computer Games as Educational and Management Tools. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-569-8.ch001.

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This chapter presents a research developed in collaboration by two higher education institutions. Nowadays, high education programs can only be successful with the use of new technologies in the teaching/learning process, especially when there are special education requirements. Two experiments were carried out: (1) a set of billiard balls, for snooker game, simulated by using physics laws and, (2) aLJo 2009, a game whose aim is to achieve the correct sorting of a sequence to accomplish a common task. Both projects were developed by students from University of Minho (UM), with different backgr
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Guerrero, Juan I., Íñigo Monedero, Félix Biscarri, Jesús Biscarri, Rocío Millán, and Carlos León. "Detection of Non-Technical Losses." In Advances in Secure Computing, Internet Services, and Applications. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-4940-8.ch008.

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The MIDAS project began in 2006 as collaboration between Endesa, Sadiel, and the University of Seville. The objective of the MIDAS project is the detection of Non-Technical Losses (NTLs) on power utilities. The NTLs represent the non-billed energy due to faults or illegal manipulations in clients’ facilities. Initially, research lines study the application of techniques of data mining and neural networks. After several researches, the studies are expanded to other research fields: expert systems, text mining, statistical techniques, pattern recognition, etc. These techniques have provided an a
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Guerrero, Juan I., Íñigo Monedero, Félix Biscarri, Jesús Biscarri, Rocío Millán, and Carlos León. "Detection of Non-Technical Losses." In Business Intelligence. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9562-7.ch047.

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The MIDAS project began in 2006 as collaboration between Endesa, Sadiel, and the University of Seville. The objective of the MIDAS project is the detection of Non-Technical Losses (NTLs) on power utilities. The NTLs represent the non-billed energy due to faults or illegal manipulations in clients' facilities. Initially, research lines study the application of techniques of data mining and neural networks. After several researches, the studies are expanded to other research fields: expert systems, text mining, statistical techniques, pattern recognition, etc. These techniques have provided an a
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Rosenzweig, Michael L. "Hidden Costs." In Win-Win Ecology. Oxford University PressNew York, NY, 2003. http://dx.doi.org/10.1093/oso/9780195156041.003.0005.

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Abstract When a skillful graduate of the Wharton School tackles the job of projecting profits for her agribusiness, she ignores lots of things. No, she is not trying to dodge taxes. She is simply doing her job well. Her company’s profits depend entirely on the money actually paid out or received. In contrast, those profits have nothing to do with various hidden environmental subsidies. She may not even be aware of the subsidies, and her company may not be either. She does not worry about these subsidies only because her outfit never gets billed for them. Nevertheless, they are as real as depre
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Edmondson, Brad. "Cashing the Chips." In A Wild Idea. Cornell University Press, 2021. http://dx.doi.org/10.7591/cornell/9781501759017.003.0012.

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This chapter looks at how the Land Use and Development Plan affect Tony D'Elia, the developer of Loon Lake Estates in the Adirondacks, the vacation-home development where he had invested his life's savings. It examines the draft version of the Land Use and Development Plan and recounts the Adirondack Park Agency's (APA) public hearings. The chapter also emphasizes the agency's mission to enhance the quality of life for local people. The plan had three parts: the first part divided the park's private land into six categories, each allowing progressively less development, the second part describ
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Page, Piers. "Funding." In An Introduction to Clinical Research. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199570072.003.0010.

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As it makes the world go round, it is very unlikely you’ll have got this far in planning a research project without someone asking you about money. Unfortunately no research is free — even a project that seems to carry no costs whatsoever will suddenly seem quite expensive when costed by an R&amp;D department. It’s very important, therefore, that you anticipate all costing issues and submit a sensible bid for your project, as it gives you significantly more credibility as someone who knows what they are doing. There are many ‘hidden’ costs of an apparently simple research project. Photocopying
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Winkler, Kevin. "City of Women." In Everything is Choreography. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190090739.003.0005.

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Two consecutive projects confirmed Tommy Tune’s vision and versatility. In 1981, Tune directed the American premiere of Caryl Churchill’s Cloud 9, his first non-musical. This “comedy of multiple orgasms,” as it was billed, featured a first act set in colonial Africa in 1880 and a second act in contemporary London a century later. Tune staged the first act with sketch-comedy speed and vaudeville humor, as the characters played out their sexual frustrations and transgressed boundaries of race and class. Once again, he used performance tropes of earlier eras to communicate a contemporary viewpoin
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Conference papers on the topic "Billard projectif"

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Suganuma, Akira, Yusuke Ogata, Atsushi Shimada, Daisaku Arita, and Rin-ichiro Taniguchi. "Billiard instruction system for beginners with a projector-camera system." In the 2008 International Conference in Advances. ACM Press, 2008. http://dx.doi.org/10.1145/1501750.1501752.

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Alsinan, Ali, Khalilur Rehman, and Ahmad Bakodah. "Towards Sustainable Excellence & Biodiversity Protection in Upstream O & G Facility." In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213248-ms.

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Objective The objective is to showcase the Abu Ali facility's commitment to protecting and preserving the Abu Ali biodiversity ecosystem. The project demonstrates a modern sustainable, circular, innovative and systemic approach to target the biodiversity threats in multi-dimensional aspects and transform these threats into opportunities to improve the island's ecosystem. The island is important to Aramco's upstream operations because it houses an oil and gas production facility. The organization has determined its environmental goals from the corporate policies and vision to be as follows. Con
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Reports on the topic "Billard projectif"

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Adelaide Project - 1963-June 1967 - 13th floor recreation area showing billiard table - c.1967. Reserve Bank of Australia, 2023. http://dx.doi.org/10.47688/rba_archives_pn-012351.

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