Search
Search Results
-
Local invariants of divergence-free webs
The objects of our study are webs in the geometry of volume-preserving diffeomorphisms. We introduce two local invariants of divergence-free webs: a...
-
A Topological Theory for Unoriented SL(4) Foams
Unoriented SL(3) foams are two-dimensional CW complexes with generic singularities embedded in 3- and 4-manifolds. They naturally come up in the...
-
Toric Sarkisov Links of Toric Fano Varieties
We explain a web of Sarkisov links that overlies the classification of Fano weighted projective spaces in dimensions 3 and 4, extending results of... -
-
What Are Mathematical Practices? The Web-of-Practices Approach
This chapter can be considered as made up of two parts, a general discussion of the notion of mathematical practice and the limits of its use,... -
On the Dimension of Exceptional Parameters for Nonlinear Projections, and the Discretized Elekes-Rónyai Theorem
We consider four related problems. (1) Obtaining dimension estimates for the set of exceptional vantage points for the pinned Falconer distance...
-
What Are Mathematical Practices? The Web-of-Practices Approach
This chapter can be considered as made up of two parts, a general discussion of the notion of mathematical practice and the limits of its use,... -
-
-
Confocal conics and 4-webs of maximal rank
Confocal conics form an orthogonal net. Supplementing this net with one of the following: (1) the net of Cartesian coordinate lines aligned along the...
-
A Review on Type-2 Fuzzy Systems in Robotics and Prospects for Type-3 Fuzzy
In this article, we are offering a review of type-2 fuzzy systems and their current applications in robotics. Although, significant research work has... -
Using Fractals and Turtle Geometry to Visually Explain the Spread of a Virus to Kids: A STEM Multitarget Activity
A lockdown was ordered in Spain on March 2020 due to the COVID-19 pandemic. The first author, advised by the second author, developed a tale and...
-
SemClinBr - a multi-institutional and multi-specialty semantically annotated corpus for Portuguese clinical NLP tasks
BackgroundThe high volume of research focusing on extracting patient information from electronic health records (EHRs) has led to an increase in the...
-
-
-
Exploring the Linear and Nonlinear Causality Between Internet Big Data and Stock Markets
In the era of big data, stock markets are closely connected with Internet big data from diverse sources. This paper makes the first attempt to...
-
Analysis of Three-Channel Images Based on the Theory of Three-Webs
Currently, one of the most urgent problems of digital image processing is the search for new mathematical approaches to the analysis and processing...
-
Three-Webs from Circles
AbstractA new geometric condition necessary for regularity of a curved three-web is found. A class of three-webs from circles generalizing the...
-
On Triangulation of the Plane by Pencils of Conics III
AbstractWe present a solution of the Blaschke problem much simpler than in [1]: find all regular curvilinear three-webs formed by the pencils of...