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1.
Polygroup objects in regular categories
Alessandro Linzi, 2024, izvirni znanstveni članek

Opis:

We express the fundamental properties of commutative polygroups (also known as canonical hypergroups) in category-theoretic terms, over the category $ \mathbf{Set} $ formed by sets and functions. For this, we employ regularity as well as the monoidal structure induced on the category $ {\mathbf{Rel}} $ of sets and relations by cartesian products. We highlight how our approach can be generalised to any regular category. In addition, we consider the theory of partial multirings and find fully faithful functors between certain slice or coslice categories of the category of partial multirings and other categories formed by well-known mathematical structures and their morphisms.


Ključne besede: polygroup, canonical hypergroup, multiring, Krasner hyperring, regular category, relation
Objavljeno v RUNG: 25.03.2024; Ogledov: 358; Prenosov: 3
.pdf Celotno besedilo (504,37 KB)
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2.
A result of Krasner in categorial form
Alessandro Linzi, 2023, izvirni znanstveni članek

Ključne besede: valuation, completion, field, hyperfield, category theory
Objavljeno v RUNG: 11.12.2023; Ogledov: 736; Prenosov: 6
.pdf Celotno besedilo (347,74 KB)
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3.
The Cherenkov Telescope Array transient and multi-messenger program
Alessandro Carosi, Saptashwa Bhattacharyya, Barbara MARČUN, Judit Pérez Romero, Samo Stanič, Veronika Vodeb, Serguei Vorobiov, Gabrijela Zaharijas, Marko Zavrtanik, Danilo Zavrtanik, Miha Živec, 2021, objavljeni znanstveni prispevek na konferenci

Opis: The Cherenkov Telescope Array (CTA) is a next generation ground-based very-high-energy gamma-ray observatory that will allow for observations in the >10 GeV range with unprece-dented photon statistics and sensitivity. This will enable the investigation of the yet-marginally explored physics of short-time-scale transient events. CTA will thus become an invaluable instru-ment for the study of the physics of the most extreme and violent objects and their interactions with the surrounding environment. The CTA Transient program includes follow-up observations of a wide range of multi-wavelength and multi-messenger alerts, ranging from compact galactic binary systems to extragalactic events such as gamma-ray bursts (GRBs), core-collapse supernovae and bright AGN flares. In recent years, the first firm detection of GRBs by current Cherenkov telescope collaborations, the proven connection between gravitational waves and short GRBs, as well as the possible neutrino-blazar association with TXS 0506+056 have shown the importance of coordinated follow-up observations triggered by these di˙erent cosmic signals in the framework of the birth of multi-messenger astrophysics. In the next years, CTA will play a major role in these types of observations by taking advantage of its fast slewing (especially for the CTA Large Size Telescopes), large e˙ective area and good sensitivity, opening new opportunities for time-domain astrophysics in an energy range not a˙ected by selective absorption processes typical of other wavelengths. In this contribution we highlight the common approach adopted by the CTA Tran-sients physics working group to perform the study of transient sources in the very-high-energy regime.
Ključne besede: Cherenkov Telescope Array, very-high-energy gamma-rays, CTA Transient program, multi-wavelength astronomy, multi-messenger astronomy
Objavljeno v RUNG: 18.09.2023; Ogledov: 607; Prenosov: 6
.pdf Celotno besedilo (1,63 MB)
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4.
The Monitoring, Logging, and Alarm system for the Cherenkov Telescope Array
Alessandro Costa, Saptashwa Bhattacharyya, Barbara MARČUN, Judit Pérez Romero, Samo Stanič, Veronika Vodeb, Serguei Vorobiov, Gabrijela Zaharijas, Marko Zavrtanik, Danilo Zavrtanik, Miha Živec, 2021, objavljeni znanstveni prispevek na konferenci

Opis: We present the current development of the Monitoring, Logging and Alarm subsystems in the framework of the Array Control and Data Acquisition System (ACADA) for the Cherenkov Tele-scope Array (CTA). The Monitoring System (MON) is the subsystem responsible for monitoring and logging the overall array (at each of the CTA sites) through the acquisition of monitoring and logging information from the array elements. The MON allows us to perform a systematic approach to fault detection and diagnosis supporting corrective and predictive maintenance to minimize the downtime of the system. We present a unified tool for monitoring data items from the telescopes and other devices deployed at the CTA array sites. Data are immediately available for the operator interface and quick-look quality checks and stored for later detailed inspection. The Array Alarm System (AAS) is the subsystem that provides the service that gathers, filters, exposes, and persists alarms raised by both the ACADA processes and the array elements su-pervised by the ACADA system. It collects alarms from the telescopes, the array calibration, the environmental monitoring instruments and the ACADA systems. The AAS sub-system also creates new alarms based on the analysis and correlation of the system software logs and the status of the system hardware providing the filter mechanisms for all the alarms. Data from the alarm system are then sent to the operator via the human-machine interface.
Ključne besede: Cherenkov Telescope Array, Array Control and Data Acquisition System, Monitoring System, Array Alarm System
Objavljeno v RUNG: 18.09.2023; Ogledov: 635; Prenosov: 4
.pdf Celotno besedilo (936,81 KB)
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5.
On the deep connection between hyperstructures and quantum logic
Nicolò Cangiotti, Alessandro Linzi, 2023, objavljeni povzetek znanstvenega prispevka na konferenci

Opis: We describe and motivate our project for a hypercompositional approach to quantum logic.
Ključne besede: quantum logic, hypercompositional algebra, hypergroups, lattice, projective geometry
Objavljeno v RUNG: 01.08.2023; Ogledov: 829; Prenosov: 3
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A new symmetry in valuation theory
Alessandro Linzi, 2023, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: valuation, valued field, p-adic numbers, hyperfield
Objavljeno v RUNG: 27.06.2023; Ogledov: 1015; Prenosov: 8
.pdf Celotno besedilo (405,62 KB)

8.
Valuations on structures more general than fields
Alessandro Linzi, 2023, objavljeni znanstveni prispevek na konferenci

Ključne besede: hyperfield, valuation, valued field, tropical hyperfield
Objavljeno v RUNG: 27.06.2023; Ogledov: 908; Prenosov: 8
.pdf Celotno besedilo (276,86 KB)
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9.
On an algebraic description of projective geometries
Alessandro Linzi, predavanje na tuji univerzi

Ključne besede: Projective geometry, projective space, hypergroup
Objavljeno v RUNG: 06.06.2023; Ogledov: 1208; Prenosov: 0
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10.
Narratives need not end well; nor say it all
Sara Andreetta, Davide Spalla, Alessandro Treves, 2023, drugi znanstveni članki

Opis: To fully embrace situations of radical uncertainty, we argue that the theory should abandon the requirements that narratives, in general, must lead to affective evaluation, and that they have to explain (and potentially simulate) all or even the bulk of the current decisional context. Evidence from studies of incidental learning show that narrative schemata can bias decisions while remaining fragmentary, insufficient for prediction, and devoid of utility values.
Ključne besede: conviction narrative theory, Hebbian learning, schemata, memory, neuroscience
Objavljeno v RUNG: 10.05.2023; Ogledov: 1092; Prenosov: 2
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