University of Primorska Faculty of Mathematics, Natural Sciences and Information Technologies
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Mathematical Research Seminar - Archive

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Datum in ura / Date and time: 14.1.19
(10:00-11:00)
Predavalnica / Location: FAMNIT-MP7 (formerly FAMNIT-POŠTA)
Predavatelj / Lecturer: Nastja Cepak (UP IAM, UP FAMNIT)
Naslov / Title: Blockchain
Vsebina / Abstract:

In 2017 we have been hearing a lot about blockchain, in 2018 a bit less. But what is a blockchain, really? How is it connected to Bitcoin? Why is there the "crypto" in "cryptocurrencies"? And should we, as mathematicians, be even interested in it? We will be talking about these and similar questions during the seminar. We will briefly look at what kind of mathematics a usual blockchain is based on, how it started, and in what ways today's world is trying to use it.

Datum in ura / Date and time: 7.1.19
(10:00-11:00)
Predavalnica / Location: FAMNIT-MP7 (formerly FAMNIT-POŠTA)
Predavatelj / Lecturer: Tomaž Pisanski (University of Primorska)
Naslov / Title: Computing Wiener index of a tree from its terminal matrix
Vsebina / Abstract:

In this talk we present an algorithm for computing the Wiener index of a tree from the distance matrix of its leaves, known also as the terminal matrix of a tree. The algorithm performs better than the linear time algorithm for trees that have a large number of vertices of valence 2.