1,721,111 research outputs found
Studio morfometrico sui metapodiali degli equidi rinvenuti nella stalla casa dei Casti Amanti in Pompei.
No full textStudio morfometrico sui metapodiali degli equidi rinvenuti nella stalla casa dei Casti Amanti in Pompei.
No full textA note on the l^2-norm of the second fundamental form of algebraic manifolds
Full text link2000 Mathematics Subject Classification: 53C42, 53C55.Let M f → CP^n be an algebraic manifold of complex dimension d and let σf
be its second fundamental form. In this paper we address the following conjecture,
which is the analogue of the one stated by M. Gromov for smooth immersions: ...
We prove the conjecture in the following three cases:
(i) d = 1; (ii) M is a complete intersection; (iii) the scalar curvature of M is constant
Nuovi dati sulla paleoecologia dell’Eneolitico sardo: archeozoologia e valori isotopici dei resti ossei di Su Coddu/Canelles, lotto Badas (Selargius-Cagliari)
No full textProjectively induced Kähler cones over regular Sasakian manifolds
No full textMotivated by a conjecture in Loi et al. (Math Zeit 290:599–613, 2018) we prove that the Kähler cone over a regular complete Sasakian manifold is Ricci-flat and projectively induced if and only if it is flat. We also obtain that, up to Da—homothetic transformations, Kähler cones over homogeneous compact Sasakian manifolds are projectively induced. As main tool we provide a relation between the Kähler potentials of the transverse Kähler metric and of the cone metric
Isometric immersions of locally conformally Kähler manifolds
Full text linkWe investigate isometric immersions of locally conformally Kähler metrics into Hopf manifolds. In particular, we study Hopf-induced metrics on compact complex surfaces
Global symplectic coordinates on gradient Kähler–Ricci solitons
Full text linkA classical result of McDuff [14] asserts that a simply connected complete Kähler manifold (M, g, ω) with non positive sectional curvature admits global symplectic coordinates through a symplectomorphism Ψ: M → R^2n (where n is the complex dimension of M), satisfying the following property (proved by E. Ciriza in [4]): the image Ψ(T) of any complex totally geodesic submanifold T ⊂ M through the point p such that Ψ(p) = 0, is a complex linear subspace of Cn ≃ R^2n. The aim of this paper is to exhibit, for all positive integers n, examples of n-dimensional complete Kähler manifolds with non-negative sectional curvature globally symplectomorphic to R^2n through a symplectomorphism satisfying Ciriza's property
Invariant escaping Fatou components with two rank-one limit functions for automorphisms of C2
Full text linkWe construct automorphisms of C2, and more precisely transcendental Hénon maps, with an invariant escaping Fatou component which has exactly two distinct limit functions, both of (generic) rank one. We also prove a general growth lemma for the norm of points in orbits belonging to invariant escaping Fatou components for automorphisms of the form F(z,w)=(g(z,w),z) with g(z,w): C2 → C holomorphic
Protezione offerta da un CIC ad una lega di alluminio
No full textL'efficacia di un Corrosion Inhibiting Compound (CIC) nella prevenzione della corrosione su una lega di alluminio ad alta resistenza meccanica, esposta a diversi ambienti aggressivi, è stata valutata nel tempo utilizzando misure di impedenza elettrochimica (EIS)
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