The conference will take place in Tartu, Estonia, on July 18-20, in 2018. It is organized by the Institute of Mathematics and Statistics of the University of Tartu in collaboration with Estonian Mathematical Society.

Professor Kalle Kaarli is one of the most outstanding Estonian algebraists. He has obtained deep results in various fields of algebra, most notably in universal algebra, but also in lattice theory, near-ring theory, Abelian group theory and semigroup theory. He has been the president of the Estonian Mathematical Society and the head of the Institute of Mathematics at the University of Tartu. In July 2018 he will celebrate his 70th birthday.

This conference can be considered as a part of our traditional series of spring workshops
(http://kodu.ut.ee/~vlaan/kaariku/). Those workshops have taken place outside Tartu usually in April or May.

The conference venue is the building of mathematics and computer science, J. Liivi street 2. This is just 500 meters from the townhall square. The conference website is http://math.ut.ee/aa2018 . On this website you can find a preliminary program of the conference.

The participation fee will be 70 euros and it can be paid in cash in Tartu. This will cover the cost of conference dinner, coffee breaks, a visit to a museum and conference materials. For accompanying persons the fee will be 30 euros and this will cover the conference dinner and a visit to a museum.

It has turned out that due to a pop music concert almost all hotels in Tartu are booked out on July 19. We have booked 10 rooms for July 17-21 in hotel Raadimõisa (http://www.raadihotell.ee/) as follows: a) a single room for 59 euros per night, b) twin rooms for 69 euros, c) suites for 114 euros. This hotel is roughly 3 km from the conference venue, but it is possible to use buses. If you are interested in using one of these options, please let us know as soon as possible, preferably within two weeks. Yesterday there were also two free rooms in Academus Hostel (http://academus.ee/), which is 500 meters from the venue. Of course, you may try to find a more convenient accommodation on your own. The list of hotels in Tartu can be found at http://www.visittartu.com/en/accommodation/ .

For travelling to Tartu you may consider the Tartu Airport, which has one connection per day to Helsinki. Otherwise, you may fly to Tallinn and take a bus to Tartu (180 km).

If you are interested in participating, please send an e-mail to valdis.laan@ut.ee with the following information: name, institution, do you wish to give a talk. We will have some 50 minutes plenary talks and everybody is welcome to present a 25 minutes talk. The title of the talk and the abstract can be sent later. Talks in all fields of algebra as well as talks about different applications of algebra are welcome. Also, please feel free to distribute the informtation about our conference among your colleagues and students.

Hoping to see you in Tartu!