Dynamical systems and categories
@article{Dimitrov2013DynamicalSA, title={Dynamical systems and categories}, author={George Dimitrov and Fabian Haiden and Ludmil Katzarkov and Maxim Kontsevich}, journal={arXiv: Category Theory}, year={2013} }
We study questions motivated by results in the classical theory of dynamical systems in the context of triangulated and A-infinity categories. First, entropy is defined for exact endofunctors and computed in a variety of examples. In particular, the classical entropy of a pseudo-Anosov map is recovered from the induced functor on the Fukaya category. Second, the density of the set of phases of a Bridgeland stability condition is studied and a complete answer is given in the case of bounded…
78 Citations
On the categorical entropy and the topological entropy
- Mathematics, Computer Science
- 2016
A conjecture is proposed which naturally generalizes the theorem by Gromov-Yomdin, and it is shown that the categorical entropy of a surjective endomorphism of a smooth projective variety is equal to its topological entropy.
Entropy of the composition of two spherical twists
- Computer Science, Mathematics
- 2021
The entropy of the composition of two spherical twists around spherical objects is computed, showing that it depends on the dimension of the graded vector space of morphisms between them.
Curvature of the space of stability conditions
- Mathematicsmanuscripta mathematica
- 2022
Motivated by study of the autoequivalence group of triangulated categories via isometric actions on metric spaces, we consider curvature properties (CAT(0), Gromov hyperbolic) of the space of…
MASS GROWTH OF OBJECTS AND CATEGORICAL ENTROPY
- MathematicsNagoya Mathematical Journal
- 2020
In the pioneering work by Dimitrov–Haiden–Katzarkov–Kontsevich, they introduced various categorical analogies from the classical theory of dynamical systems. In particular, they defined the entropy…
Categorical entropy, (co-)t-structures and ST-triples
- Mathematics
- 2022
In this paper, we study a dynamical property of an exact endofunctor Φ : D → D of a triangulated category D. In particular, we are interested in the following question: Given full triangulated…
Relative stability conditions on Fukaya categories of surfaces
- MathematicsMathematische Zeitschrift
- 2022
In this paper, we introduce the novel notion of a relative Bridgeland stability condition, in the context of a wrapped Fukaya category of a marked surface with respect to part of its boundary. This…
THE THURSTON COMPACTIFICATION OF THE SPACE OF STABILITY CONDITIONS: THE A2 CASE
- Mathematics
- 2019
We define a continuous map from the space of Bridgeland stability conditions on a triangulated category C to an infinite projective space. We conjecture that under some assumptions on the…
A Thurston compactification of the space of stability conditions.
- Mathematics
- 2020
We propose a compactification of the moduli space of Bridgeland stability conditions of a triangulated category. Under mild conditions on the triangulated category, we conjecture that this…
Algebraic stability conditions and contractible stability spaces
- Mathematics
- 2014
Suppose that C is either a locally-finite triangulated category with finite rank Grothendieck group, or a discrete derived category of finite global dimension. We prove that any component of the…
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