252 research outputs found
Divisorial Zariski decomposition and algebraic Morse inequalities
In this note we use the divisorial Zariski decomposition to give a more
intrinsic version of the algebraic Morse inequalities.Comment: In this version we correct some misprints
Quasi-negative holomorphic sectional curvature and positivity of the canonical bundle
We show that if a compact complex manifold admits a K\"ahler metric whose
holomorphic sectional curvature is everywhere non positive and strictly
negative in at least one point, then its canonical bundle is positive.Comment: 12 pages, no figures, final version, to appear on J. Differential
Geo
Estimates of Weil-Petersson volumes via effective divisors
We study the asymptotics of the Weil-Petersson volumes of the moduli spaces
of compact Riemann surfaces of genus with punctures, for fixed as
Task Oriented Programming and Service Algorithms for Smart Robotic Cells
L'abstract è presente nell'allegato / the abstract is in the attachmen
A compact, multi-pixel parametric light source
The features of a compact, single pass, multi-pixel optical parametric
generator are discussed. Several hundreds of independent high spatial-quality
tunable ultrashort pulses were produced by pumping a bulk lithium triborate
crystal with an array of tightly focussed intense beams. The array of beams was
produced by shining a microlenses array with a large pump beam. Overall
conversion efficiency to signal and idler up to 30% of the pump beam has been
reported. Shot-to-shot energy fluctuation down to 3% was achieved for the
generated radiation.Comment: 11 pages, 6 figures, submitted to "Optics Communications
Weil-Petersson geometry for families of hyperbolic conical Riemann Surfaces
We study the Weil-Petersson geometry for holomorphic families of Riemann
Surfaces equipped with the unique conical metric of constant curvature -1.Comment: 32 pages, expanded versio
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