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In this paper, we define and study an equivariant analogue of Cohen, Farber and Weinberger's parametrized topological complexity. We show that several results in the non-equivariant case can be extended to the equivariant case. For example,…

Algebraic Topology · Mathematics 2024-11-27 Navnath Daundkar

We show that the parametrised topological complexity of Cohen, Farber and Weinberger gives an invariant of group epimorphisms. We extend various bounds for the topological complexity of groups to obtain bounds for the parametrised…

Algebraic Topology · Mathematics 2021-10-28 Mark Grant

We introduce and study a parametrized analogue of the directed topological complexity, originally developed by Goubault, Farber, and Sagnier. We establish the fibrewise basic dihomotopy invariance of directed parametrized topological…

Algebraic Topology · Mathematics 2025-12-04 Sutirtha Datta , Navnath Daundkar , Abhishek Sarkar

This paper explores topological complexity in the finite equivariant setting. We first define and study an equivariant version of Tanaka's combinatorial complexity for finite topological spaces. We explore the relationships between this…

Algebraic Topology · Mathematics 2022-01-12 Rebecca Bell , Allison N. Eckert , Ryan M. Pesak , Avery Schweitzer

We study a probabilistic variant of the r-th sequential parametrized topological complexity, which bounds this classical invariant from below and measures the difficulty in constructing permissive parametrized motion planning algorithms. On…

Algebraic Topology · Mathematics 2026-05-25 Navnath Daundkar , Ekansh Jauhari

We define and study an equivariant version of Farber's topological complexity for spaces with a given compact group action. This is a special case of the equivariant sectional category of an equivariant map, also defined in this paper. The…

Algebraic Topology · Mathematics 2014-10-01 Hellen Colman , Mark Grant

We introduce and study the sequential analogue of Grant's parametrized topological complexity of group epimorphisms, which generalizes the sequential topological complexity of groups. We derive bounds for sequential parametrized topological…

Algebraic Topology · Mathematics 2025-04-01 Navnath Daundkar

We present a new approach to equivariant version of the topological complexity, called a symmetric topological complexity. It seems that the presented approach is more adequate for the analysis of an impact of symmetry on the the motion…

Algebraic Topology · Mathematics 2015-06-12 Wojciech Lubawski , Wacław Marzantowicz

We introduce a bivariate version of topological complexity, $\mathrm{TC}(f,g)$, associated with two continuous maps $f\colon X\to Z$ and $g\colon Y\to Z$. This invariant measures the minimal number of continuous motion planning rules…

Algebraic Topology · Mathematics 2026-01-23 Jose Manuel Garcia Calcines , Jose Antonio Vilches Alarcon

The notion of parametrized topological complexity, introduced by Cohen, Farber and Weinberger, is extended to fibrewise spaces which are not necessarily Hurewicz fibrations. After exploring some formal properties of this extension we also…

Algebraic Topology · Mathematics 2021-03-19 J. M. Garcia-Calcines

Sequential parametrized topological complexity is a numerical homotopy invariant of a fibration, which arose in the robot motion planning problem with external constraints. In this paper, we study sequential parametrized topological…

Algebraic Topology · Mathematics 2025-03-04 Yuki Minowa

Topological complexity $\TC{B}$ of a space $B$ is introduced by M. Farber to measure how much complex the space is, which is first considered on a configuration space of a motion planning of a robot arm. We also consider a stronger version…

Algebraic Topology · Mathematics 2012-02-28 Norio Iwase , Michihiro Sakai

Many mechanical systems have configuration spaces that admit symmetries. Mathematically, such symmetries are modelled by the action of a group on a topological space. Several variations of topological complexity have emerged that take…

Algebraic Topology · Mathematics 2024-02-05 Mark Grant

We introduce a version of Farber's topological complexity suitable for investigating mechanical systems whose configuration spaces exhibit symmetries. Our invariant has vastly different properties to the previous approaches of Colman-Grant,…

Algebraic Topology · Mathematics 2018-01-09 Zbigniew Błaszczyk , Marek Kaluba

This article investigates equivariant parametrized cellular cohomology, a cohomology theory introduced by Costenoble-Waner for spaces with an action by a compact Lie group $G$. The theory extends the $RO(G)$-graded cohomology of a $G$-space…

Algebraic Topology · Mathematics 2024-10-21 Agnès Beaudry , Chloe Lewis , Clover May , Sabrina Pauli , Elizabeth Tatum

In this paper we develop theory of sequential parametrized motion planning which generalises the approach of parametrized motion planning, which was introduced recently in [3]. A sequential parametrized motion planning algorithm produced a…

Algebraic Topology · Mathematics 2022-09-20 Michael Farber , Amit Kumar Paul

Analysis of motion algorithms for autonomous systems operating under variable external conditions leads to the concept of parametrized topological complexity \cite{CFW}. In \cite{CFW}, \cite{CFW2} the parametrized topological complexity was…

Algebraic Topology · Mathematics 2025-09-23 Michael Farber , Amit Kumar Paul , Lucile Vandembroucq

By analogy with the invariant Q-category defined by Scheerer, Stanley and Tanr\'e, we introduce the notions of Q-sectional category and Q-topological complexity. We establish several properties of these invariants. We also obtain a formula…

Algebraic Topology · Mathematics 2017-01-23 Lucía Fernández Suárez , Lucile Vandembroucq

It is proved that if $G$ is a compact Lie group, then an equivariant Serre fibration of $G$-CW-complexes is an equivariant Hurewicz fibration in the class of compactly generated $G$-spaces. In the nonequivariant setting, this result is due…

Algebraic Topology · Mathematics 2023-08-08 Pavel S. Gevorgyan , Rolando Jimenez

We study higher analogues of effective and effectual topological complexity of spaces equipped with a group action. These are $G$-homotopy invariant and are motivated by the (higher) motion planning problem of $G$-spaces for which their…

Algebraic Topology · Mathematics 2021-11-01 Emmett Balzer , Enrique Torres-Giese
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