104th WORKSHOP ON GENERAL ALGEBRA

104. ARBEITSTAGUNG ALLGEMEINE ALGEBRA

8 – 11 February 2024

South-West University "Neofit Rilski"
Department of Mathematics
Blagoevgrad, Bulgaria

The conference series "AAA - Workshops on General Algebra" is a series of scientific conferences that was founded by Rudolf Wille in Darmstadt in 1971. Since then, there have been 103 conferences in this series, organized in Germany, Austria, the Czech Republic, Poland, Serbia, Switzerland, Hungary, Slovakia, Finland, Luxembourg, Italy and Estonia.
The conference AAA104, which is the 104th workshop in the AAA series of workshops on general algebra, will be organized by the Department of Mathematics, Faculty of Mathematics and Natural Sciences at the South-West University “Neofit Rilski”, Blagoevgrad, Bulgaria. The venue of the event will be the University Center "Bachinovo" in the foothills of Rilla Mountain, near the city.
The conference provides opportunities for the delegates to exchange new ideas and application experiences, to establish research relations and to find global partners for future collaboration.

REGISTRATION
• Go to "Submit a proposal" and follow the steps.
If you would like to participate in the conference without talk, please write "Without talk" in the title field and also select "Without talk" for the track. Then follow the steps to create your account.

PROGRAM:
During the conference a broad range of research and applied topics will be presented and discussed, covering the fields of (but not limited to):
• Universal Algebra
• Semigroup Theory
• Algebraic Structure Theory
• Lattice Theory
• Applications in Computer Science
The program consists of 50-minute invited lectures and a larger number of 20-minute contributed talks.

CONFERENCE PROGRAM

BOOK OF ABSTRACTS

INVITED SPEAKERS:
• Academic Professor Dr. Vesselin Drensky, Bulgarian Academy of Sciences, BULGARIA
• Professor Dr. Vitor Hugo Fernandes, NOVA University of Lisbon, PORTUGAL
• Professor Dr. Hayrullah Ayık, Çukurova University, Adana, TÜRKİYE
• Professor Dr. Dragan Mašulović, University of Novi Sad, SERBIA
• Professor Dr. Erkko Lehtonen, Khalifa University, Abu Dhabi, UAE

CONFERENCE FEE:
• 80 € – including conference materials, program, book of abstracts, certificate of attendance, coffee breaks, and conference dinner.
• 230 € – including conference materials, program, book of abstracts, certificate of attendance, coffee breaks, conference dinner, and accommodation on full board base (breakfast, lunch and dinner) at University Center "Bachinovo".
Pay via bank transfer to:
Holder: South-West University
MUNICIPAL BANK
EUR - BG97SOMB91303460613000
BIC: SOMBBGSF
Subject: AAA104, Your name

!!! It is very important to write AAA104 and your name as subject for the bank transfer!!!

We ask the participants who chose the first option (80 € ) to arrange their accommodation by themselves. Here is a list of some hotels in Blagoevgrad:
• Hotel Park Bachinovo - https://www.hotel-park-bachinovo.bg/en/
• Hotel Orbita - https://hotel-orbita.bg/en/
• Hotel Ezeretz - https://ezeretz.com/en
• Hotel City - https://cityhotelbg.com/en/home_en/
• Hotel Fenix - http://www.hotelfenix.net/en
• Hotel Cardinal - https://cardinal-bg.com/

IMPORTANT DATES:
• Deadline for on-line registration, abstract submission and payment: 10.01.2024
• Arrival and registration of the participants: 08.02.2024
• Opening ceremony: 09.02.2024
• Closing and departure: 11.02.2024

TRAVEL INFORMATION:
First, you should travel to the capital of Bulgaria - Sofia:
• by plane to Sofia Airport
• by bus to Sofia Central Bus Station
• by train to Sofia Central Railway Station

From the airport you can reach the Central Bus Station / Central Railway Station by metro or taxi:
• by metro - take the metro train and change the line at the Serdika station, where you should take the line 2, direction Obelya (Обеля). Get off at the Central Railway Station – the second stop after the Serdika Station.
The ticket price is 1,60 BG leva (about 0,8 euro). The travel time from the airport to the central bus station is about 50 minutes, depends on the waiting time for the change at Serdika Station.
• by taxi - if you decide to use a taxi, please use only OK Supertrans taxi. Order the taxi from their office in front of the arrivals exit - https://www.oktaxi.net/en. Be careful because there are fake taxis with logo close to the logo of OK Supertrans. The price to the Central Bus Station / Central Railway Station is about 10-13 euro, depending on the traffic.

Once you are at the Central Bus Station or Central Railway Station in Sofia, you have 2 options to travel to Blagoevgrad.
• by bus - there are regular bus lines from Sofia to Blagoevgrad. The bus schedule is available here. The price is 12 BG leva (about 6 euro). You do not need to buy tickets in advance. The travel time is between 1:30 - 2:00 hours, depending on the traffic.
• by train - the schedule you can find here. The price of the ticket is about 8 leva (4 euro). You do not need to buy tickets in advance. The travel time is between 2:00 - 3:00 hours, depending on the train type.

Blagoevgrad Bus Station and Railway Station are close to one another. The distance from the bus / railway station to University center “Bachinovo” is about 9 km. From there you have 2 options to travel to our venue.
• by taxi - you can get a taxi directly from each of the stations, for the biggest part of the day there are a few taxis in front. If not, you can always order a taxi from https://www.oktaxiblgrad.net/. The price to University center “Bachinovo” is about 10 - 12 BG leva (about 5 to 6 euro), depending on the traffic.
• by University bus - on Thursday (08.02.2024) we will organize a University bus for the participants of the conference from the parking of the Railway Station to University center “Bachinovo” at 15.00 and 18.00 local time.

ORGANIZERS:
Ilinka Dimitrova, South-West University, BULGARIA
Joerg Koppitz, Bulgarian Academy of Sciences, BULGARIA
Boyana Garkova, South-West University, BULGARIA
Rositsa Georgieva, South-West University, BULGARIA
Viktor Dimitrov, South-West University, BULGARIA
Mediha Topalova, South-West University, BULGARIA
Sashka Kandilarova, South-West University, BULGARIA
Emiliya Garkova, South-West University, BULGARIA

CONTACTS:
aaa104@swu.bg

Supported by the Bulgarian National Science Fund (Contract № КП-06-МНФ/30/08.08.2023).

The Bulgarian National Science Fund cannot be held responsible for the content of the talks presented at the scientific forum, as well as for the content of advertising and other materials.