Department of Mathematics and Computer Science

The Cake Club is a new and cozy initiative that meets four times each semester with free coffee, cake, and great company.So whether you study AI, Applied Mathematics, Computer Science, Mathematics, or Mathematics-Economics, you are invited.Remember to bring your fellow students (lecturers are also welcome).The club meetings are held at the IMADA Forskertorv.You can read more in the Facebook group IMADA-students.

In The Road to Freedom Nobel prize winner Joseph E. Stiglitz dissects America’s current economic system and the political ideology that created it, laying bare their twinned failure. “Free” and unfettered markets have only succeeded in delivering a series of crises: the financial crisis, the opioid crisis, and the crisis of inequality. While a small portion of the population has amassed considerable wealth, wages for most people have stagnated. Free and unfettered markets have exploited consumers, workers, and the environment alike. Such failures have fed populist movements that believe being free means abandoning any obligations citizens have to one another. As they grow in strength, these movements now pose a real threat to true economic and political freedom.The Road to Freedom breaks new ground, showing how economics―including recent advances in which Stiglitz has played such an important role―reframes how to think about freedom and the role of the state in a twenty-first century society. Drawing on the work of contemporary philosophers, Stiglitz explains a deeper, more humane way to assess freedoms―one that considers with care what to do when one person’s freedom conflicts with another’s. We must reimagine our existing economic and legal systems and embrace forms of collective action, including regulation and investment, if we are to create an innovative society in which everyone can flourish.About Joseph E. StiglitzJoseph E. Stiglitz is an American economist and a professor at Columbia University. He is also the co-chair of the High-Level Expert Group on the Measurement of Economic Performance and Social Progress at the OECD, and the Chief Economist of the Roosevelt Institute. Stiglitz was awarded the Nobel Memorial Prize in Economic Sciences in 2001 and the John Bates Clark Medal in 1979. He is a former senior vice president and chief economist of the World Bank and a former chair of the U.S. Council of Economic Advisers. In 2000, Stiglitz founded the Initiative for Policy Dialogue, a think tank on international development based at Columbia University. In 2011 Stiglitz was named by Time magazine as one of the 100 most influential people in the world. Known for his pioneering work on asymmetric information, Stiglitz's research focuses on income distribution, climate change, corporate governance, public policy, macroeconomics and globalization. He is the author of numerous books including, most recently, People, Power, and Profits, Rewriting the Rules of the European Economy, and Globalization and Its Discontents Revisited.VenueThe DIAS Auditorium, SDU Campus OdenseThis event is open for all. No registration needed - first come, first served. Livestreaming availableStream the event on Zoom

The Cake Club is a new and cozy initiative that meets four times each semester with free coffee, cake, and great company.So if you study Data Science, you are invited.Remember to bring your fellow students (lecturers are also welcome).The club meetings are held at the IMADA Forskertorv.You can read more in the Facebook group IMADA-students.

Speaker: Jakob Ulmer(​Sorbonne Paris Norht University)Abstract: I will recall the work of Costello, Caldararu-Tu on how to extract 'enumerative‘ invariants out of a Calabi-Yau category C, conjecturally matching GW invariants of M symplectic if C=Fuk(M). Their work is an algebraic incarnation of closed string field theory (SFT); the invariants are assembled in the partition function of the closed SFT associated to C. Next I will report on work in progress (by U., Amorim-Tu and using results of Voronov et. al) how to define the partition function of large N open SFT on a stack of N branes of an object x of C, conjecturally related to open GW invariants. Finally I explain how to define the partition function of closed SFT of C, backreacted in the direction of an object x. This is directly inspired by constructions in the ’Twisted Holography’ proposal of Costello-Gaiotto.

Santiago Quintero de los Ríos defends his PhD thesis at a public lecture titled: ”The Continuous Stochastic Gradient Method”.The PhD defence takes place in IMADA Conference Room (Ø18-509-2)The chairman of the assessment committee, Professor Achim Schroll, will act as chairman at the defence.All are welcome.

Speaker: Yuanhong Guo(Chinese Academy of Sciences)Abstract: ​In recent years, the bootstrap method has made significant progress in calculating physical quantities in quantum field theories. The main idea of the bootstrap method is to obtain the final result directly by appropriately assuming a general ansatz of the result and utilizing some known physical constraints. The bootstrap method also provides a way to comprehend the maximal transcendentality principle, which claims that the maximally transcendental parts of a class of physical quantities (such as the cusp anomalous dimensions and the loop corrections of the form factors, etc.) are the same in N=4 SYM and QCD. The uniqueness of the results can be understood by the universal physical constraints in different field theories. In this seminar talk, I will present the related progress of bootstrapping the two-loop four-point form factors in the gauge field theories based on the master integrals and demonstrate the maximal transcendentality principle for a series of form factors through the bootstrap strategy.

Speaker: Hjalte Axel Frellesvig(Zhejiang University)  Abstract: The mathematical field of intersection theory has provided an important new perspective on Feynman integrals and the relations between them. With this approach it is possible to derive such relations with a direct projection, providing a promising alternative to the slow standard approach based on IBPs.I will discuss various aspects of this mathematical framework, including newer developments based on relative cohomology which turns out to be a perfect fit for the mathematical structure of Feynman integrals. I will also discuss some brand new developments, that helps bring the day when the intersection-based approach can outcompete IBPs within sight.

ReNewQuantum, or 'Recursive and Exact New Quantum Theory,' is based on advanced geometric and topological constructions. This project aims to revolutionize Quantum Theory by developing explicit recursive schemes that effectively compute quantum corrections to all orders and achieve exact results using all non-perturbative contributions. The conference will serve as a platform for sharing groundbreaking research and fostering collaboration among leading experts in the field.

ReNewQuantum, or 'Recursive and Exact New Quantum Theory,' is based on advanced geometric and topological constructions. This project aims to revolutionize Quantum Theory by developing explicit recursive schemes that effectively compute quantum corrections to all orders and achieve exact results using all non-perturbative contributions. The conference will serve as a platform for sharing groundbreaking research and fostering collaboration among leading experts in the field.