The Final Stage of Gravitationally Collapsed Thick Matter Layers

Autor: Piero Nicolini, Alessio Orlandi, Euro Spallucci

Publikováno v: Advances in High Energy Physics, Vol 2013 (2013)

In the presence of a minimal length, physical objects cannot collapse to an infinite density, singular, matter point. In this paper, we consider the possible final stage of the gravitational collapse of “thick” matter layers. The energy momentum

Externí odkaz: https://doaj.org/article/3609fdb5f27a4e76b4a07d95cf22fcd2

Space-Efficient Substring Occurrence Estimation

Autor: Rossano Venturini, Alessio Orlandi

Publikováno v: Algorithmica 74 (2016): 65–90. doi:10.1007/s00453-014-9936-y
30th symposium on Principles of Database Systems of Data, PODS 2011, pp. 95–106, Athens, Greece, 12-16 June 2011
PODS
info:cnr-pdr/source/autori:Orlandi A.; Venturini R./titolo:Space-Efficient Substring Occurrence Estimation/doi:10.1007%2Fs00453-014-9936-y/rivista:Algorithmica/anno:2016/pagina_da:65/pagina_a:90/intervallo_pagine:65–90/volume:74
info:cnr-pdr/source/autori:Orlandi, Alessio ; Venturini, Rossano/congresso_nome:30th symposium on Principles of Database Systems of Data, PODS 2011/congresso_luogo:Athens, Greece/congresso_data:12-16 June 2011/anno:2011/pagina_da:95/pagina_a:106/intervallo_pagine:95–106

In this paper we study the problem of estimating the number of occurrences of substrings in textual data: A text $$T$$T on some alphabet $$\varSigma =[\sigma ]$$Σ=[?] of length $$n$$n is preprocessed and an index $${\mathcal {I}}$$I is built. The in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16cd6e40335b2444cb96d3470c4507e6
https://openportal.isti.cnr.it/doc?id=people______::451bdcd17ae419919a10832ca4aa6976

Compressed collections for simulated crawling

Autor: Sebastiano Vigna, Alessio Orlandi

Publikováno v: ACM SIGIR Forum. 42:39-44

Collections are a fundamental tool for reproducible evaluation of information retrieval techniques. We describe a new method for distributing the document lengths and term counts (a.k.a. within-document frequencies) of a web snapshot in a highly comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b23d8c81c16e6e069a5ede9b9a59bf1f
https://doi.org/10.1145/1480506.1480512

Quantum Harmonic Black Holes

Autor: Alessio Orlandi, Roberto Casadio

Inspired by the recent conjecture that black holes are condensates of gravitons, we investigate a simple model for the black hole degrees of freedom that is consistent both from the point of view of Quantum mechanics and of General Relativity. Since

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7e935d6e90de2ea1f760d5f3945079b

Thermal corpuscular black holes

Autor: Andrea Giugno, Roberto Casadio, Alessio Orlandi

We study the corpuscular model of an evaporating black hole consisting of a specific quantum state for a large number $N$ of self-confined bosons. The single-particle spectrum contains a discrete ground state of energy $m$ (corresponding to toy gravi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7817b6d5b630e86bac3c4b40c0755062
http://hdl.handle.net/11585/516326