102 research outputs found
Racializing white residues: seditious Anglo-Indians and others
No full textMy dissertation interrogates the discursive residues of the Anglo-Indian question in decolonized India. To problematize these residues, I structure my dissertation as a fragmented genealogy of colonial and post-colonial perceptions of Anglo-Indians. I open my dissertation by showing how, since the late-nineteenth century, Anglo-Indians were claimed to be only of part-European racial provenance, and tautologically had their bodies deemed sexually deviant. Their bodies being, like those of their non-Anglo-Indian counterparts, in fact of uncertain racial intermixture, I argue that Anglo-Indians inhabit mongrel bodies—bodies in a state of continual flux of class and race, inhabiting a multiplicity of pluralized communities. The ethical end of the decolonized Indian nation-state, I accordingly suggest, is to facilitate the recognition of mongrelism as an inevitable phenomenon across groups—one that fractures monolithic conceptions of race and community. To flesh out this argument, I conduct readings from an archive of novels, historiographic treatises, short stories, memoirs, films, and cartoons. The figures whose texts I examine include, among others, colonial Anglo-Indian ‘prostitute’ Amelia Horne, Anglo-Indian anti-racism activist Cedric Dover, Bengali novelist Sharadindu Bandyopadhyay, diasporic English writer Aubrey Menen, Indian cartoonist Mario Miranda, Bengali film director Satyajit Ray, Anglo-Indian politician and historiographer Frank Anthony, and British-Indian writer Ruskin Bond.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-08-01The student, Debojoy Chanda, accepted the attached license on 2018-07-04 at 01:48.The student, Debojoy Chanda, submitted this Dissertation for approval on 2018-07-04 at 02:33.This Dissertation was approved for publication on 2018-07-06 at 10:04.DSpace SAF Submission Ingestion Package generated from Vireo submission #12728 on 2018-09-27 at 11:16:29Made available in DSpace on 2018-09-27T16:30:17Z (GMT). No. of bitstreams: 2
CHANDA-DISSERTATION-2018.pdf: 5797174 bytes, checksum: 1ff79a8fa9d3c7c88dbbf0087da57f6d (MD5)
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Previous issue date: 2018-07-06Embargo set by: Seth Robbins for item 107771
Lift date: 2020-09-27T16:30:34Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 107771
Lift date: 2020-09-27T16:31:43Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemEmbargo set by: Seth Robbins for item 107771
Lift date: 2020-09-27T16:34:29Z
Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Only Restriction Lifted for Item 107771 on 2020-09-28T09:15:16Z
More on Jacobi metric: Randers-Finsler metrics, frame dragging and geometrisation techniques
No full textIn this article, I demonstrate a new method to derive Jacobi metrics from Randers-Finsler metrics by introducing a more generalised approach to Hamiltonian mechanics for such spacetimes and discuss the related applications and properties. I introduce Hamiltonian mechanics with the constraint for relativistic momentum, including a modification for null curves and two applications as exercises: derivation of a relativistic harmonic oscillator, and analysis of Schwarzschild Randers-Finsler metric. Then I describe the main application for constraint mechanics in this article: a new derivation of Jacobi metric for time-like and null curves, comparing the latter with optical metrics. After that, I discuss frame dragging with the Jacobi metric, and two applications for Randers-Finsler metrics: an alternative to Eisenhart lift, and different metrics that share the same Jacobi metric.24 pages, any comments are welcom
Content delivery in software defined networks
No full textInformation Centric Architectures view content as the narrow waist of the networking stack. This abstraction allows routing based on the content name, rather than the network locator of the content consumer and producer. We present ContentFlow, an Information Centric network architecture which supports content routing by mapping the content name to a OpenFlow de ned ow based on TCP and IP semantics. And, thus enables the use of OpenFlow switches to achieve content routing over a legacy IP architecture. ContentFlow is viewed as an evolutionary step between the current IP networking architecture, and a full edged ICN architecture. It supports content man- agement, content caching and content routing at the network layer, while using a legacy OpenFlow infrastructure and a modi ed controller. By e ciently using the content in- formation available in the network, ContentFlow supports e cient tra c engineering. Also, ContentFlow is transparent from the point of view of the client and the server, and can be inserted in between without modi cation at either end. The architecture and implementation of ContentFlow on top of the existing OpenFlow software de ned networking framework is described. Performance of ContentFlow is evaluated using a prototype implementation of an enterprise SDN network with Floodlight controller and multiple virtualized OpenFlow switches. The results show that ContentFlow does result in reduced content access delay in comparison to a legacy architectures.M.S.Includes bibliographical referencesby Abhishek Chand
Geometrical formulation of relativistic mechanics
No full text The relativistic Lagrangian in presence of potentials was formulated directly from the metric, with the classical Lagrangian shown embedded within it. Using it we formulated covariant equations of motion, a deformed Euler–Lagrange equation, and relativistic Hamiltonian mechanics. We also formulate a modified local Lorentz transformation, such that the metric at a point is invariant only under the transformation defined at that point, and derive the formulae for time-dilation, length contraction, and gravitational redshift. Then we compare our formulation under non-relativistic approximations to the conventional ad hoc formulation, and we briefly analyze the relativistic Liénard oscillator and the spacetime it implies. </jats:p
Eisenhart lift and Randers–Finsler formulation for scalar field theory
No full textInternational audienceWe study scalar field theory as a generalization of point particle mechanics using the Polyakov action and demonstrate how to extend Lorentzian and Riemannian Eisenhart lifts to the theory in a similar manner. Then, we explore extension of the Randers–Finsler formulation and its principles to the Nambu–Goto action and describe a Jacobi Lagrangian for it
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Linking classroom learning and research to advance ideas about social-ecological resilience
No full textThere is an increasing demand in higher education institutions for training in complex environmental problems. Such training requires a careful mix of conventional methods and innovative solutions, a task not always easy to accomplish. In this paper we review literature on this theme, highlight relevant advances in the pedagogical literature, and report on some examples resulting from our recent efforts to teach complex environmental issues. The examples range from full credit courses in sustainable development and research methods to project-based and in-class activity units. A consensus from the literature is that lectures are not sufficient to fully engage students in these issues. A conclusion from the review of examples is that problem-based and project-based, e.g., through case studies, experiential learning opportunities, or real-world applications, learning offers much promise. This could greatly be facilitated by online hubs through which teachers, students, and other members of the practitioner and academic community share experiences in teaching and research, the way that we have done here
Jacobi-Maupertuis-Eisenhart metric and geodesic flows
No full textInternational audienceThe Jacobi metric derived from the line element by one of the authors is shown to reduce to the standard formulation in the non-relativistic approximation. We obtain the Jacobi metric for various stationary metrics. Finally, the Jacobi-Maupertuis metric is formulated for time-dependent metrics by including the Eisenhart-Duval lift, known as the Jacobi-Eisenhart metric
On a reduction of the generalized Darboux–Halphen system
No full textInternational audienceThe equations for the general Darboux–Halphen system obtained as a reduction of the self-dual Yang–Mills can be transformed to a third-order system which resembles the classical Darboux–Halphen system with a common additive terms. It is shown that the transformed system can be further reduced to a constrained non-autonomous, non-homogeneous dynamical system. This dynamical system becomes homogeneous for the classical Darboux–Halphen case, and was studied in the context of self-dual Einstein's equations for Bianchi IX metrics. A Lax pair and Hamiltonian for this reduced system is derived and the solutions for the system are prescribed in terms of hypergeometric functions
Jacobi-Maupertuis metric of Lienard type equations and Jacobi last multiplier
No full textWe present a construction of the Jacobi-Maupertuis (JM) principle for an equation of the Liénard type,
ẍ + ƒ(x)ẋ2 + g(x) = 0,
using Jacobi's last multiplier. The JM metric allows us to reformulate the Newtonian equation of motion for a variable mass as a geodesic equation for a Riemannian metric. We illustrate the procedure with examples of Painlevé-Gambier XXI, the Jacobi equation and the Henon-Heiles system.Mathematic
Jacobi–Maupertuis metric and Kepler equation
No full text This paper studies the application of the Jacobi–Eisenhart lift, Jacobi metric and Maupertuis transformation to the Kepler system. We start by reviewing fundamentals and the Jacobi metric. Then we study various ways to apply the lift to Kepler-related systems: first as conformal description and Bohlin transformation of Hooke’s oscillator, second in contact geometry and third in Houri’s transformation [T. Houri, Liouville integrability of Hamiltonian systems and spacetime symmetry (2016), www.geocities.jp/football_physician/publication.html ], coupled with Milnor’s construction [J. Milnor, On the geometry of the Kepler problem, Am. Math. Mon. 90 (1983) 353–365] with eccentric anomaly. </jats:p
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