SCHEDULE
16 SEPTEMBER (MONDAY)
Chairman: Andrius Grigutis
9:00-9:10
9:15 – 9:55
10:00 – 10:15
10:20 – 10:35
10:40 – 11:15
11:15 – 11:30
11:35 – 11:50
11:55 – 12:10
12:15 – 12:30

Opening
Alfredas Račkauskas,
Vilnius University, Lithuania
Vygantas Paulauskas,
Vilnius University, Lithuania
Donatas Surgailis,
Vilnius University, Lithuania

Jonas Šiaulys,
Vilnius University, Lithuania
Rūta Levulienė,Vilnius University, Lithuania
Joint work with V. Bagdonavičius
Marijus Radavičius,Vilnius University, Lithuania
Simona Jokubauskienė,Vytautas Magnus University,
Lithuania
Aidas Medžiūnas,Vilnius University, Lithuania

12:50 – 15:00

Lunch break

15:20 – 15:35
15:40 – 15:55
15:55 – 16:20
16:20 – 16:35
16:40 – 16:55

Briefly About the End of a Long Career
Fractional Operators and Fractionally
Integrated Random Fields on ℤ

Coffee break

12:35 – 12:50

15:00 – 15:15

Vygantas Paulauskas: Plus 5 Years in theField of Probability

Closedness of Heavy-Tailed Distributions
The Distribution of the Statistic of the Chisquared Test for Regression Models
Inference of Structural Distribution of Cell
Probabilities under Sparse Asymptotics
Local Hipp's Approximation for kDimensional Lattice Vectors
Navigating Uncertainty: Stochastic Modelsof the Competitive AI Development
LandscapeChairman: Jonas Šiaulys
A Discrete-Time Model that Weakly
Yuliya Mishura,
Converges to a Continuous-Time GeometricTaras Shevchenko National
Brownian Motion with Markov Switching
University of Kyiv, Ukraine
Drift RateKęstutis Kubilius,
Approximation of Fractional SDE withVilnius University, Lithuania
Influence
Mantas Dirma,
On the Distribution-Tail Behaviour of theVilnius University, Lithuania
Product of Normal Random Variables
Coffee break
Andrius Grigutis,
Vilnius University, Lithuania
Mindaugas Kepalas,
Vilnius University, Lithuania

The Limit Law of Discrete Partial Sums'
Distribution
Using Lorenz Curves to Improve Risk
Premium Prediction

17:00-17:15

Paulius Virbalas,
Vilnius University, Lithuania

On the Degree of Product and Sum of Two
Algebraic Numbers

SCHEDULE
17 SEPTEMBER (TUESDAY)
Chairman: Ramūnas Garunkštis
9:15 – 9:55
10:00 – 10:40
10:40 – 11:15
11:15 – 11:30
11:35 – 11:50
11:55 – 12:10

Jonas Šiaulys,
Vilnius University, Lithuania
Paulius Drungilas, Jonas Jankauskas,
Aivaras Novikas,
Vilnius University, Lithuania

Artūras Dubickas: Contribution toNumber Theory

Coffee breakArtūras Dubickas,
Vilnius University, Lithuania
Antanas Laurinčikas,
Vilnius University, Lithuania
Kota Saito,
University of Tsukuba, JapanRoma Kačinskaitė,Vilnius University, Lithuania

12:15 – 12:30

12:35 – 12:50

Gediminas Stepanauskas:
Mathematician, Dean, Colleague

On Square-Root Sum Problem
On Beurling Zeta-Functions
Mills' Constant is Irrational

One Class of Zeta Functions
Joint work with B. Žemaitienė from
Vytautas Magnus University, Lithuania
Ričardas Juozas Kudžma,Vilnius University, Lithuania

Anatomy of Fractions

SCHEDULE
18 SEPTEMBER (WEDNESDAY)
8:00

Excursion (by bus): Charming Curonian Spit.
Leaving from Romuva leisure center (Birutės al. 37 a, Palanga).

SCHEDULE
19 SEPTEMBER (THURSDAY)
Chairwoman: Kristina Kaulakytė
9:15 – 9:55
10:00 – 10:40

Grigory Panassenko,
Vilnius University, Lithuania
University Jean Monnet, FranceArtūras Štikonas,
Vilnius University, Lithuania

10:40 – 11:15

Coffee break

11:15 – 11:30

Olga Štikonienė,Vilnius University, Lithuania

11:35 – 11:50

11:55 – 12:10
12:15 – 12:30
12:35 – 12:50
12:50 – 15:00

15:00 – 15:15
15:20 – 15:35
15:40 – 15:55

Gintautas Bareikis,VilniusUniversity, Lithuania
Joint work with E. Manstavičius
Giedrius Alkauskas,
Vilnius University, Lithuania
Raivydas Šimėnas,Vilnius University, Lithuania
Darius Šiaučiūnas,Vilnius University, Lithuania

Olga Štikonienė: Mathematician,Colleague, Wife.

The Theory of M-Matrices as a Powerful
Tool in the Analysis of Modern Problems
with Nonlocal Boundary Conditions
Distributions of Multiplicative Functions
Coloring Monohedral Tilings: Defects andGrain Boundaries
Decompositions of the Extended Selberg
Class Functions
Estimate of the Mean Square of the Hurwitz
Zeta-Function in Short Intervals

Lunch break
Chairman: Darius ŠiaučiūnasOn a Positivity Property of the Real Part ofAndrius Grigutis,
the Logarithmic Derivative of the Riemann
Vilnius University, Lithuania
ξ –Function
Renata Macaitienė,Some Limit Theorems for the Epstein ZetaVilnius University, Lithuania
Function
Igoris Belovas,
An Inequality for Dirichlet L-functions
Vilnius University, Lithuania

15:55 – 16:20

Coffee break

16:20 – 16:35

Monika Tekorė,Vilnius University, Lithuania

16:40 – 16:55

Mindaugas Jasas,
Vilnius University, Lithuania

19:00

Mathematical Fluid Mechanics: K. Pileckas
Contribution

On Approximation of Analytic Functions
by Shifts of the Periodic Zeta-Functions
Approximation of Analytic Functions byShifts of Absolutely Convergent Dirichlet
Series Related to Periodic Zeta-Functions

Conference dinner (Floros Simfonija, Birutės al. 22)

SCHEDULE
20 SEPTEMBER (FRIDAY)
Chairwoman: Renata Macaitienė
9:15 – 9:55
10:00 – 10:15
10:20 – 10:35
10:40 – 11:15
11:15 – 11:30
11:35 – 11:50
11:55 – 12:10
12:15 – 12:20

Alar Leibak,
Tallinn University, Estonia
Arvydas Karbonskis,
Vilnius University, Lithuania
Hany Hilal Yewakiem Gerges,
Vilnius University, Lithuania

On the Number of Factorizations of Integert Modulo N
Variance of a Strongly Additive Function
Defined on Random Permutations
A Joint Limit Theorem for Epstein andHurwitz Zeta Functions

Coffee break
Dainius Dzindzalieta,
Vilnius University, Lithuania
Johan Andersson,Örebro University, Sweden
Ramūnas Garunkštis,Vilnius University, Lithuania
Closing

A Tail Bound for Sums of Random
Variables
Universality of Helson Zeta-Functions withPrescribed Zeros and PolesOn Zeros of the Riemann Zeta-Function