1,720,972 research outputs found
Avner Friedman Blow-Up Estimates for Nonlinear Hyperbolic Heat Equation
No full textBellout, Hamid. (1987). Avner Friedman Blow-Up Estimates for Nonlinear Hyperbolic Heat Equation. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/4716
Scattering by Stripe Grating
No full textBellout, Hamid; Friedman, Avner. (1988). Scattering by Stripe Grating. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/4874
Stability for an inverse problem in potential theory
No full textBellout, Hamid; Friedman, Avner; Isakov, Victor. (1990). Stability for an inverse problem in potential theory. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/5162
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Existence of a Solution to the Line Contact Problem of Elastohydrodynamic Lubrication
Full text linkWe prove the existence of a solution to a free boundary value problem arising in elastohydrodynamic lubrication. Previously, the existence was proved only under severe restrictions on the range of the physical parameters. We remove those restrictions here
BLOW-UP OF SOLUTIONS OF NONLINEAR PARABOLIC EQUATIONS
No full textIn chapter 1 we prove that for the parabolic initial value prob- lem u(,t) = (DELTA)u + (delta)f(u) there is a finite time blow-up of the solution, provided (delta) is greater than the upper bound to the spectrum of the steady rate problem and (f/f\u27) is concave. An upper bound of the blow-up time is given. The proof is based on a comparison with a supersolution to the parabolic initial value problem. In chapter 2 we study the blow-up set of solutions of the equation (DIAGRAM, TABLE OR GRAPHIC OMITTED...PLEASE SEE DAI) For the radially symmetric case we prove that the blow-up set consist of a single point. In the general case we prove that the blow-up set is a compact subset of (OMEGA). Estimates of the rate of blow-up are given
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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