Constructing new spectral systems from simplicial fibrations

2021 ◽  
Vol 55 (3) ◽  
pp. 87-91
Author(s):  
Daniel Miguel ◽  
Andrea Guidolin ◽  
Ana Romero ◽  
Julio Rubio

In this work we present an ongoing project on the development and study of new spectral systems which combine filtrations associated to Serre and Eilenberg-Moore spectral sequences of different fibrations. Our new spectral systems are part of a new module for the Kenzo system and can be useful to deduce new relations on the initial spectral sequences and to obtain information about different filtrations of the homology groups of the fiber and the base space of the fibrations.

2018 ◽  
Vol 20 (08) ◽  
pp. 1850014 ◽  
Author(s):  
Joontae Kim ◽  
Myeonggi Kwon ◽  
Junyoung Lee

For a Liouville domain [Formula: see text] whose boundary admits a periodic Reeb flow, we can consider the connected component [Formula: see text] of fibered twists. In this paper, we investigate an entropy-type invariant, called the slow volume growth, in the component [Formula: see text] and give a uniform lower bound of the growth using wrapped Floer homology. We also show that [Formula: see text] has infinite order in [Formula: see text] if there is an admissible Lagrangian [Formula: see text] in [Formula: see text] whose wrapped Floer homology is infinite dimensional. We apply our results to fibered twists coming from the Milnor fibers of [Formula: see text]-type singularities and complements of a symplectic hypersurface in a real symplectic manifold. They admit so-called real Lagrangians, and we can explicitly compute wrapped Floer homology groups using a version of Morse–Bott spectral sequences.


CounterText ◽  
2020 ◽  
Vol 6 (1) ◽  
pp. 26-32
Author(s):  
Norbert Bugeja

In this retrospective piece, the Guest Editor of the first number of CounterText (a special issue titled Postcolonial Springs) looks back at the past five years from various scholarly and personal perspectives. He places particular focus on an event that took place mid-way between the 2011 uprisings across a number of Arab countries and the moment of writing: the March 2015 terror attack on the Bardo National Museum in Tunis, which killed twenty-two people and had a profound effect on Tunisian popular consciousness and that of the post-2011 Arab nations. In this context, the author argues for a renewed perspective on memoir as at once a memorial practice and a political gesture in writing, one that exceeds concerns of genre and form to encompass an ongoing project of political re-cognition following events that continue to remap the agenda for the region. The piece makes a brief final pitch for Europe's need to re-cognise, within those modes of ‘articulacy-in-difficulty’ active on its southern borders, specific answers to its own present quandaries.


2019 ◽  
Vol 73 (2) ◽  
pp. 72-79
Author(s):  
Carla Marcantonio

FQ books editor Carla Marcantonio guides readers through the 33rd edition of Il Cinema Ritrovato Festival held each year in Bologna at the end of June. Highlights of this year's festival included a restoration of one of Vittorio De Sica's hard-to-find and hence lesser-known films, the social justice fairy tale, Miracolo a Milano (Miracle in Milan, 1951). The film was presented by De Sica's daughter, Emi De Sica, and was an example of the ongoing project to restore De Sica's archive, which was given to the Cineteca de Bologna in 2016. Marcantonio also notes her unexpected responses to certain reviewings; Apocalypse Now: Final Cut (2019), presented by Francis Ford Coppola on the large-scale screen of Piazza Maggiore and accompanied by remastered Dolby Atmos sound, struck her as a tour-de-force while a restoration of David Lynch's Blue Velvet (1986) had lost some of its strange allure.


2019 ◽  
Vol 35 ◽  
Author(s):  
Quraysha Bibi Ismail Sooliman

This paper considers the effect of violence on the emotions of IS fighters and the resultant consequences of those emotions as a factor in their choice to use violence. By interrogating the human aspect of the fighters, I am focusing not on religion but on human agency as a factor in the violence. In this regard, this paper is about reorienting the question about the violence of IS not as “religious” violence but as a response to how these fighters perceive what is happening to them and their homeland. It is about politicising the political, about the violence of the state and its coalition of killing as opposed to a consistent effort to frame the violence into an explanation of “extremist religious ideology.” This shift in analysis is significant because of the increasing harm that is caused by the rise in Islamophobia where all Muslims are considered “radical” and are dehumanised. This is by no means a new project; rather it reflects the ongoing project of distortion of and animosity toward Islam, the suspension of ethics and the naturalisation of war. It is about an advocacy for war by hegemonic powers and (puppet regimes) states against racialised groups in the name of defending liberal values. Furthermore, the myth of religious violence has served to advance the goals of power which have been used in domestic and foreign policy to marginalise and dehumanise Muslims and to portray the violence of the secular state as a justified intervention in order to protect Western civilisation and the secular subject.


Author(s):  
Tobias Hering

In 2011, the artist Filipa César was given access to the archive of the Instituto Nacional de Cinema e Audiovisual (INCA) in Bissau, which holds the remains of a precarious but dedicated documentary film production during the final phase of the liberation war and the first years of independence in Guinea-Bissau (roughly from 1972 to 1980). Together with two of the film-makers involved, Flora Gomes and Sana na N'Hada, and a group of researchers and film-makers from Bissau, Filipa César is since then engaged in an ongoing project experimenting with various forms of re-visualization and re-evaluation of this archive. Tobias Hering has participated in this process on several occasions and wrote about it in the essay "Before six years after," published for Filipa César's exhibition at Jeu de Paume (Paris) in October 2012. The text published here is a critically revised and annotated version of this earlier essay.


Author(s):  
Matthew C. Bingham

Orthodox Radicals explores the origins and identity of Baptists during the English Revolution (1640–1660), arguing that mid-seventeenth century Baptists did not, in fact, understand themselves to be part of a larger, all-encompassing “Baptist” movement. Contrary to both the explicit statements of many historians and the tacit suggestion embedded in the very use of “Baptist” as an overarching historical category, the early modern men and women who rejected infant baptism would not have initially understood that single theological move as being in itself constitutive of a new group identity. Rather, the rejection of infant baptism was but one of a number of doctrinal revisions then taking place among English puritans eager to further their ongoing project of godly reformation. Orthodox Radicals thus complicates our understanding of Baptist identity and addresses broader themes including early modern religious toleration, the mechanisms by which early modern groups defined and defended themselves, and the perennial problem of historical anachronism. By combining a provocative reinterpretation Baptist identity with close readings of key theological and political texts, Orthodox Radicals offers the most original and stimulating analysis of mid-seventeenth century Baptists in decades.


Universe ◽  
2021 ◽  
Vol 7 (6) ◽  
pp. 169
Author(s):  
Cristina Lazzeroni ◽  
Sandra Malvezzi ◽  
Andrea Quadri

The rapid changes in science and technology witnessed in recent decades have significantly contributed to the arousal of the awareness by decision-makers and the public as a whole of the need to strengthen the connection between outreach activities of universities and research institutes and the activities of educational institutions, with a central role played by schools. While the relevance of the problem is nowadays unquestioned, no unique and fully satisfactory solution has been identified. In the present paper we would like to contribute to the discussion on the subject by reporting on an ongoing project aimed to teach Particle Physics in primary schools. We will start from the past and currently planned activities in this project in order to establish a broader framework to describe the conditions for the fruitful interplay between researchers and teachers. We will also emphasize some aspects related to the dissemination of outreach materials by research institutions, in order to promote the access and distribution of scientific information in a way suited to the different age of the target students.


2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
J. Gutowski ◽  
W. A. Sabra

Abstract We classify all supersymmetric solutions of minimal D = 4 gauged supergravity with (2) signature and a positive cosmological constant which admit exactly one Killing spinor. This classification produces a geometric structure which is more general than that found for previous classifications of N = 2 supersymmetric solutions of this theory. We illustrate how the N = 2 solutions which consist of a fibration over a 3-dimensional Lorentzian Gauduchon-Tod base space can be written in terms of this more generic geometric structure.


Author(s):  
Jun Ueki

AbstractWe formulate and prove a profinite rigidity theorem for the twisted Alexander polynomials up to several types of finite ambiguity. We also establish torsion growth formulas of the twisted homology groups in a {{\mathbb{Z}}}-cover of a 3-manifold with use of Mahler measures. We examine several examples associated to Riley’s parabolic representations of two-bridge knot groups and give a remark on hyperbolic volumes.


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