At an official ceremony held on June 25, 2025, at the French Embassy in Sofia, Prof. Julian Revalski was awarded one of the most prestigious awards of the French Republic – the Order of Academic Palms (Ordre des Palmes Académiques). The Order of Academic Palms is the third-highest in France after the Legion of Honour and the National Order of Merit.
The award was presented to him by His Excellency Joël Meyer, Ambassador of France to Bulgaria. Special guests at the ceremony were the Minister of Education and Science, Mr. Krasimir Valchev, the President of the Bulgarian Academy of Sciences, Prof. Evelina Slavcheva, the Rector of Sofia University “St. Kliment Ohridski”, Prof. Georgi Valchev, the Director of IMI-BAS, Prof. Petar Boyvalenkov, members of the academic community, journalists, and prominent public figures.
Prof. Revalski is an internationally recognised mathematician, a scientist with an exceptional contribution to science and society, a visionary and an erudite administrator who enjoys respect and trust in the Bulgarian and international scientific community.
L’ordre des Palmes académiques is one of the most prestigious distinctions awarded by the French Republic in recognition of contributions to education, culture, and the promotion of the French language worldwide. Although formally established in its current form in 1955, the order traces its origins back to 1808, when Emperor Napoleon Bonaparte introduced a special honorary decoration to acknowledge the merits of university professors and academic staff. Over time, the scope of the order broadened. Today, it is awarded not only to members of the academic community but also to individuals from a wide range of professions who have made significant contributions to the advancement of education, intercultural exchange, and the dissemination of the French language and culture.
Prof. Julian Revalski was President of the Bulgarian Academy of Sciences in the period 2016 – 2024, Director of the Institute of Mathematics and Informatics of the Bulgarian Academy of Sciences from 2013 to 2016, and currently Director of the International Center for Mathematical Sciences at the IMI-BAS.
His scientific activity is in the field of Operations Research – optimisation, variational analysis, game theory; in functional analysis – with an emphasis on the geometry of Banach spaces and monotone operators; as well as in the field of general topology – topological methods in optimisation and set-valued mappings. He is the author of over 60 scientific publications, which have been cited more than 600 times, a significant part of which are in prestigious international journals with a high impact factor.
Prof. Revalski has extensive international academic experience – he was a visiting professor at universities in Canada, Cuba, France, Germany, Greece, Italy, Japan, Peru, and others.
As a director of the Institute of Mathematics and Informatics and later as the president of the Bulgarian Academy of Sciences, Prof. Revalski has been actively working to attract young talents to science and the international recognition of the Bulgarian mathematical school. His dedicated work to improving the connections between Bulgarian mathematicians working abroad and their colleagues in our country led to the organisation and holding of the extremely successful forum “Mathematics Days in Sofia” (MDS), which was held for the first time in 2014 and has had three editions since then. Prof. Revalski played a key role in the creation of the IMI Mathematics Prize, which is given to Bulgarian citizens with high achievements in the field of mathematics and which has been awarded since 2014. In 2019, together with Prof. Blagovest Sendov, he was among the founders of the International Center for Mathematical Sciences at IMI-BAS (ICMS-Sofia), whose director he has been since 2024.
A few days ago, Prof. Revalski was also elected President of the Union of Bulgarian Mathematicians – an organisation with nearly 130 years of history, whose main goal is the development and popularisation of mathematics and computer science and their applications at all levels in education, science, and business.
Throughout his academic career, Prof. Revalski has demonstrated his clear vision for the role of science in society and has defended his active position in cooperation with state institutions, including the Ministry of Education and Science, the Council of Ministers, the line ministers, the Presidency of the Republic of Bulgaria and the Council of Rectors. He has consistently worked to improve the funding and expand the international partnership of the Academy.
International Conference Biomath 2025The annual international conference Biomath – Mathematical Methods and Models in Biosciences will take place from 15 to 20 June 2025 at the campus of the Bulgarian Academy of Sciences, hosted jointly by the Institute of Mathematics and Informatics and the Institute of Mechanics.
Biomath 2025 is dedicated to recent research in the life sciences grounded in mathematical modelling and methodology. The conference serves as a multidisciplinary meeting point for researchers developing and applying mathematical and computational tools in fields such as biology, ecology, medicine, biophysics, biochemistry, pharmacokinetics, chemoinformatics, biotechnology, bioengineering, environmental sciences, and other related disciplines.
The event continues a longstanding tradition of biomathematical meetings dating back to 1995. It is organized with the support of various institutes of the Bulgarian Academy of Sciences, as well as major academic institutions such as Sofia University “St. Kliment Ohridski”, Plovdiv University “Paisii Hilendarski”, South-West University “Neofit Rilski”, the Union of Bulgarian Mathematicians, and the Biomath Forum. International partners include the Department of Mathematics and Applied Mathematics and the DST/NRF SARChI Chair on Mathematical Models and Methods in Bioengineering and Biosciences at the University of Pretoria, and the Institute of Applied Mathematics at the University of Warsaw.
Running in parallel with the conference, the Biomath School for Young Scientists offers plenary lectures and dedicated sessions for contributed talks by early-career researchers. The lectures are designed to provide accessible introductions to current research topics and are delivered by some of the conference’s keynote speakers. A highlight of the school is the Hot Topics Workshop, where leading experts present emerging areas of research and outline open problems. All participating PhD students and young scientists are considered members of the school.
Further details and the full program can be found at the official conference website: www.biomath.bg/2025
The Second Annual Research and Innovation Forum for Software Developers SofTIS Summer Camp 2025Following the success of its first edition in 2024, which brought together young researchers, software developers, and industry leaders, SofTIS Summer Camp returns for its second year. From June 13 to 15, 2025, the Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences, in partnership with Scalefocus, will once again host this international in-person forum at the company’s Varna office, aiming to foster sustainable networks between science and the tech industry.
SofTIS Summer Camp is an innovative format that bridges scientific research and real-world software engineering. The camp focuses on:
The event brings together academics, industry professionals, and young talents to explore topics such as artificial Intelligence and software systems optimization, blockchain and next-generation platforms, green software development and sustainability, commercialization of research and tech-driven startups, innovative education and PhD training for the IT sector, among others.
The three-day program features keynote talks, panel discussions, interactive workshops, demos, and challenge-based collaboration. PhD research, applied scientific initiatives, and successful corporate practices will be highlighted. SofTIS Summer Camp is not just a conference – it’s a dialogue-driven platform for shaping the future of technology through science.
SofTIS Summer Camp is open to students, PhD candidates, researchers, and software professionals who are passionate about applying scientific thinking to real-world technology development.
Academic Lecture by Prof. Yuri TschinkelOn March 10, 2025, at 5 PM in the Prof. Marin Drinov Hall of the Bulgarian Academy of Sciences, Prof. Yuri Tschinkel will deliver an academic lecture on the occasion of his election as a foreign member of the Bulgarian Academy of Sciences.
Prof. Tschinkel was elected a foreign member of the Bulgarian Academy of Sciences on November 25, 2024, upon the proposal of the Scientific Council of the Institute of Mathematics and Informatics. He is a world-renowned mathematician, a creator of several new directions with a huge influence on the development of modern mathematics, with remarkable results in rational points on algebraic varieties; stable irrationality; stabilization; symbol theory; and G-irrationality.
Currently, Prof. Tschinkel is a professor at the Courant Institute of Mathematical Sciences, New York, USA. He is one of the leading contemporary mathematicians with outstanding contributions to the development of algebraic geometry, algebraic topology and geometric aspects of mathematical physics. For his great contribution to mathematics, Prof. Tschinkel has been awarded several prizes in Мathematics, including the Frontier of Science Award from the International Congress of Fundamental Sciences, Beijing, 2023. In 2018, he was elected a member of the German Academy of Sciences Leopoldina Academy, and in 2021, he was elected a foreign member of the Academia Europaea.
Prof. Tschinkel is а director of the Mathematics and Physical Sciences Division of the Simons Foundation – one of the largest charitable organizations in the United States. It provides grants in four scientific areas: Мathematics and Physical sciences; Life Sciences; Autism Research and Education, Engagement and Outreach. The Mathematics and Physical Sciences Division of the Simons Foundation supports research in the fields of mathematics, theoretical physics and computer science by providing funding for scientists, institutions and scientific infrastructure.
Prof. Tschinkel participated actively in the initial discussions on the establishment of the International Center for Mathematical Sciences (ICMS–Sofia) at the Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences together with Prof. Julian Revalski, Prof. Ivan Todorov and Prof. Ludmil Katzarkov. Today, Prof. Tschinkel is a member of the ICMS Advisory Board. He has always strongly supported the activities of ICMS–Sofia and contributed to transforming ICMS–Sofia into a leading research and scientific center in South-Eastern Europe.
Antoni Rangachev from IMI receives a grant from the Swiss National Science FoundationAssistant Professor Antoni Rangachev from the Institute of Mathematics and Informatics and Institut de Mathématiques de Jussieu – Paris Rive Gauche receives a 5-year PROMYS grant from the Swiss National Science Foundation (SNSF). PROMYS is a funding programme by the SNSF as part of the second Swiss contribution to selected EU member states. It is intended to create promising and interesting career opportunities for outstanding researchers and thus counteract a “brain drain” from these states.
The “Topological, Metric and Algebraic Equisingularity Theory” project will be carried out at IMI-BAS. Its aim is to help Dr. Rangachev establish a research group in singularities. Dr. Rangachev will be assisted in this endeavor by Prof. Norbert A’Campo (University of Basel) and Prof. Zsolt Patakfalvi (EPFL). The project will fund several postdoctoral positions, graduate students, a singularities seminar, research trips for the team members, and conferences in singularity theory that will be held in Bulgaria.
Dr. Rangachev specializes in singularity theory, algebraic geometry and commutative algebra. He focuses on studying how singular varieties that depend on parameters change under parameter perturbations. Singular varieties are geometric objects that are defined as the solutions of systems of polynomial or analytic equations in many variables and that locally differ from the appearance of Euclidean spaces. When some of the variables in the defining equations of a variety are independent parameters, the variety can be viewed as a family composed of subvarieties called fibers each of which corresponds to a particular choice of parameters. The changes that can take place in a family are of topological, metric or algebrо-geometric nature. There are two extreme cases that can occur. The first one is if there is no change: the fibers of the family exhibit the same nature. Such families are called equisingular. The other extreme case is that of maximum change: the nearby fibers around a singular fiber are smooth (locally resembling Euclidean spaces). Such families are called smoothings.
The main research goals of the project are as follows. In the case of equisingular families the goal is to understand the interplay among various equisingularity notions. In the case of smoothing, the goal is to develop methods to compute topological invariants of the smooth fibers directly from the defining algebraic equations of the singular fiber.
Antoni Rangachev is a Massachusetts Institute of Technology graduate. He obtained his PhD from Northeastern University in 2017 under the supervision of Prof. Terence Gaffney and Prof. Steven Kleiman. He was a Dickson Instructor at the University of Chicago from 2017 to 2021 and a Peter Beron fellow at IMI-BAS from 2021 to 2023. Currently, Antoni is a Marie Skłodowska Curie fellow at Institut de Mathématiques de Jussieu in Paris and the CNRS where he works with Prof. Bernard Teissier.
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