Dr. Radwan Mohammed Al-Omary
Published in
Bollettino dell'Unione Matematica Italiana
Let (𝑋,∗,0) be a d-algebra and 𝛼,𝛽 are endomorphisms on X. Motivated by some results on derivations, (𝛼,𝛽)-derivation in rings, and the generalizations of BCK and BCI-algebras, in this paper, we introduce the notion of (𝛼,𝛽)-derivations on d-algebras, construct several examples and investigate some simple and important results.
Al-Omary, Radwan Mohammed Dr. Radwan Mohammed Al-Omary
Published in
Bollettino dell'Unione Matematica Italiana
Migliorini, Luca
Published in
Bollettino dell'Unione Matematica Italiana
Nannicini, Antonella Migliorini, Luca
Published in
Bollettino dell'Unione Matematica Italiana
Gauduchon, Paul
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Bollettino dell'Unione Matematica Italiana
This paper aims at giving a unified framework for a number of well-known extremal Kähler metrics with a big group of symmetries, with a special emphasis on the case of scalar-flat Kähler metrics, all stemming from the general construction of U(m)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackag...
Tian, Gang
Published in
Bollettino dell'Unione Matematica Italiana
We will discuss some recent results on long-time behavior of Kähler–Ricci flow on compact Kähler manifolds with semi-positive canonical bundle. This is a very important part of the Analytic Minimal Model Program.
Lotay, Jason D. Pacini, Tommaso
Published in
Bollettino dell'Unione Matematica Italiana
Given a minimal Lagrangian submanifold L in a negative Kähler–Einstein manifold M, we show that any small Kähler–Einstein perturbation of M induces a deformation of L which is minimal Lagrangian with respect to the new structure. This provides a new source of examples of minimal Lagrangians. More generally, the same is true for the larger class of ...
Battaglia, Fiammetta Prato, Elisa Zaffran, Dan
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Bollettino dell'Unione Matematica Italiana
We introduce a family of spaces, parametrized by positive real numbers, that includes all of the Hirzebruch surfaces. Each space is viewed from two distinct perspectives. First, as a leaf space of a compact, complex, foliated manifold, following Battaglia and Zaffran (Int Math Res Not 22:11785–11815, 2015). Second, as a symplectic cut of the manifo...
Pontecorvo, Massimiliano
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Bollettino dell'Unione Matematica Italiana
We describe some relations between coefficients of irreducible components of the first Chern class (Fujiki and Pontecorvo in J Geom Phys 91:117–130, 2015) and birational germs introduced by Dloussky (J Math Pures Appl 106:76–122, 2016) for intermediate Kato surfaces.
Bauer, Ingrid Catanese, Fabrizio
Published in
Bollettino dell'Unione Matematica Italiana
We prove the equisingular rigidity of the singular Hirzebruch–Kummer coverings X(n, L\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathcal {L}$$\end{document}) of th...