15 citations · 46 across the 12 of their papers we have counts for
12 papers
Hopf algebroids and twists for quantum projective spaces
Ludwik Dabrowski, Giovanni Landi, Jacopo Zanchettin
We study the relationship between antipodes on a Hopf algebroid in the sense of Böhm-Szlachanyi and the group of twists that lies inside the associated convolution al…
Braided Hopf algebras and gauge transformations II: -structures and examples
Paolo Aschieri, Giovanni Landi, Chiara Pagani
We consider noncommutative principal bundles which are equivariant under a triangular Hopf algebra. We present explicit examples of infinite dimensional braided Lie and Hopf algebr…
Sub-optimal Approaches to Heteroscedasticity in Silicon Strip Detectors: the Lucky Model and the Super-Lucky Model
Gregorio Landi, Giovanni E. Landi
The approach to heteroscedasticity of ref.1(Instruments 2022, 6(1), 10) contains a sketchy application of a sub-optimal method of very easy implementation: the lucky model. The sup…
Braided Hopf algebras and gauge transformations
Paolo Aschieri, Giovanni Landi, Chiara Pagani
We study infinitesimal gauge transformations of an equivariant noncommutative principal bundle as a braided Lie algebra of derivations. For this, we analyse general -braided Hop…
Levi-Civita connections on quantum spheres
Joakim Arnlind, Kwalombota Ilwale, Giovanni Landi
We introduce -deformed connections on the quantum 2-sphere and 3-sphere, satisfying a twisted Leibniz rule in analogy with -deformed derivations. We show that such connection…
Hopf algebroids from noncommutative bundles
Xiao Han, Giovanni Landi, Yang Liu
We present two classes of examples of Hopf algebroids associated with noncommutative principal bundles. The first comes from deforming the principal bundle while leaving unchanged…
Tolerance Relations and Quantization
Francesco D'Andrea, Giovanni Landi, Fedele Lizzi
It is well known that "bad" quotient spaces (typically: non-Hausdorff) can be studied by associating to them the groupoid C*-algebra of an equivalence relation, that in the "nice"…
On irreducible representations of a class of quantum spheres
Francesco D'Andrea, Giovanni Landi
We study irreducible representations of a class of quantum spheres, quotients of quantum symplectic spheres.
Positioning Error Probability for Some Forms of Center-of-Gravity Algorithms Calculated with the Cumulative Distributions. Part I
Gregorio Landi, Giovanni E. Landi
To complete a previous paper, the probability density functions of the center-of-gravity as positioning algorithm are derived with classical methods. These methods, as suggested by…
Proofs of non-optimality of the standard least-squares method for track reconstructions
Gregorio Landi, Giovanni E. Landi
It is a standard criterium in statistics to define an optimal estimator the one with the minimum variance. Thus, the optimality is proved with inequality among variances of competi…
Improvements of Track Fitting with Well Tuned Probability Distributions for Silicon Strip Detectors
Gregorio Landi, Giovanni E. Landi
The construction of a well tuned probability distributions is illustrated in synthetic way, these probability distributions produce faithful realizations of the impact point distri…
Metrics and Pairs of Left and Right Connections on Bimodules
L. Dcabrowski, P. M. Hajac, G. Landi +1
Properties of metrics and pairs consisting of left and right connections are studied on the bimodules of differential 1-forms. Those bimodules are obtained from the derivation base…