Results 111 to 120 of about 4,659,666 (289)

Renormalization Group and the Ricci Flow [PDF]

Milan Journal of Mathematics, 2010
30 pages, 16 PNG figures, Conference talk at the Riemann International School of Mathematics: Advances in Number Theory and Geometry, Verbania April 19-24, 2009- Proceedings to appear in Milan Journal of Mathematics (Birkhauser)
openaire   +4 more sources

Some New Characterizations of Trivial Ricci–Bourguignon Solitons

Journal of Mathematics
A Ricci–Bourguignon soliton is a self-similar solution to the Ricci–Bourguignon flow equation, and a Ricci–Bourguignon soliton is called trivial if its potential field is zero or killing.
Hana Al-Sodais, Nasser Bin Turki, Sharief Deshmukh, Bang-Yen Chen, Hemangi Madhusudan Shah   +4 more
doaj   +1 more source

The Soliton Kähler-Ricci Flow over Fano Manifolds [PDF]

arXiv, 2012
We introduce a flow of K\"ahler structures over Fano manifolds with formal limit at infinite time a K\"ahler-Ricci soliton. This flow correspond to a Perelman's modified backward K\"ahler-Ricci type flow that we call Soliton-K\"ahler-Ricci flow. It can be generated by the Soliton-Ricci flow.
arxiv  

The Ricci flow on manifolds with boundary [PDF]

Journal of Differential Geometry, 2016
Improved exposition and statement on the control of the existence time of the Ricci flow, and updated/added some references. Also, a new section is added, demonstrating a situation in which the existence time of the Ricci flow (with boundary) with flat initial data and well behaved boundary data may become arbitrarily ...
openaire   +4 more sources

Long‐Term Impact of COVID‐19 on Disorders of Gut–Brain Interaction: Incidence, Symptom Burden, and Psychological Comorbidities

United European Gastroenterology Journal, EarlyView.
ABSTRACT Background The severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) pandemic has highlighted the potential exacerbation of gastrointestinal symptoms in patients with disorders of gut‐brain interaction (DGBIs). However, the distinct symptom trajectories and psychological burden in patients with post‐COVID‐19 DGBIs compared with patients
Giovanni Marasco, Keren Hod, Luigi Colecchia, Cesare Cremon, Maria Raffaella Barbaro, Giulia Cacciari, Francesca Falangone, Anna Kagramanova, Dmitry Bordin, Vasile Drug, Egidia Miftode, Pietro Fusaroli, Salem Youssef Mohamed, Chiara Ricci, Massimo Bellini, M. Masudur Rahman, Luigi Melcarne, Javier Santos, Beatriz Lobo, Serhat Bor, Suna Yapali, Deniz Akyol, Ferdane Pirincci Sapmaz, Yonca Yilmaz Urun, Tugce Eskazan, Altay Celebi, Huseyin Kacmaz, Berat Ebik, Hatice Cilem Binicier, Mehmet Sait Bugdayci, Munkhtsetseg Banzragch Yağcı, Husnu Pullukcu, Berrin Yalınbas Kaya, Ali Tureyen, İbrahim Hatemi, Elif Sitre Koc, Goktug Sirin, Ali Riza Calıskan, Goksel Bengi, Esra Ergun Alıs, Snezana Lukic, Meri Trajkovska, Dan Dumitrascu, Antonello Pietrangelo, Elena Corradini, Magnus Simren, Jessica Sjolund, Navkiran Tornkvist, Uday C. Ghoshal, Olga Kolokolnikova, Antonio Colecchia, Jordi Serra, Giovanni Maconi, Roberto De Giorgio, Silvio Danese, Piero Portincasa, Antonio Di Sabatino, Marcello Maggio, Elena Philippou, Yeong Yeh Lee, Daniele Salvi, Alessandro Venturi, Claudio Borghi, Marco Zoli, Paolo Gionchetti, Pierluigi Viale, Vincenzo Stanghellini, Giovanni Barbara, for the GI‐COVID19 study groups   +68 more
wiley   +1 more source

Ricci Lower Bound for Kähler-Ricci Flow [PDF]

arXiv, 2011
In this note, we provide some general discussion on the Ricci lower bound along K\"ahler-Ricci flow with singularity over closed manifold.
arxiv  

Strong uniqueness of the Ricci flow [PDF]

Journal of Differential Geometry, 2009
In this paper, we derive some local a priori estimates for Ricci flow. This gives rise to some strong uniqueness theorems. As a corollary, let $g(t)$ be a smooth complete solution to the Ricci flow on $\mathbb{R}^{3}$, with the canonical Euclidean metric $E$ as initial data, then $g(t)$ is trivial, i.e. $g(t)\equiv E$.
openaire   +4 more sources

Pseudolocality for the Ricci Flow and Applications [PDF]

Canadian Journal of Mathematics, 2011
Abstract Perelman established a differential Li-Yau-Hamilton (LYH) type inequality for fundamental solutions of the conjugate heat equation corresponding to the Ricci flow on compact manifolds. As an application of the LYH inequality, Perelman proved a pseudolocality result for the Ricci flow on compact manifolds. In this article we provide the details
Luen-Fai Tam, Albert Chau, Chengjie Yu
openaire   +3 more sources

Ovarian Cell Accumulation of Model PVC Nanoplastics Labelled With CdSe‐QDs Investigated by X‐Ray Fluorescence Microscopy

X-Ray Spectrometry, EarlyView.
ABSTRACT The distribution of micro‐ and nanoplastics (MNPs) in the environment is increasingly becoming a cause of concern for human health. The small size of these particles makes them prone to accumulate not only in the tissues of various organs but also enables them to enter cells and act as carriers of external materials and microbes.
Alessandra Gianoncelli, Cristina Tufoni, Milan Žižić, Federica Zingaro, Giacomo Ceccone, Valentina Bonanni, Murielle Salomé, Eduardo Villalobos‐Portillo, Rita La Spina, Domenico Cassano, Giuseppe Ricci, Lorella Pascolo   +11 more
wiley   +1 more source

Geometric Classifications of Perfect Fluid Space-Time Admit Conformal Ricci-Bourguignon Solitons

Journal of Mathematics
This paper is dedicated to the study of the geometric composition of a perfect fluid space-time with a conformal Ricci-Bourguignon soliton, which is the extended version of the soliton to the Ricci-Bourguignon flow.
Noura Alhouiti, Soumendu Roy, Santu Dey, Fatemah Mofarreh, Akram Ali, Yanlin Li   +5 more
doaj   +1 more source