In mathematics, specifically topology, a sequence covering map is any of a class of maps between topological spaces whose definitions all somehow relate sequences in the codomain with sequences in the domain. Examples include sequentially quotient maps, sequence coverings, 1-sequence coverings, and 2-sequence coverings. These classes of maps are closely related to sequential spaces. If the domain and/or codomain have certain additional topological properties (often, the spaces being Hausdorff and first-countable is more than enough) then these definitions become equivalent to other well-known classes of maps, such as open maps or quotient maps, for example. In these situations, characterizations of such properties in terms of convergent sequences might provide benefits similar to those provided by, say for instance, the characterization of continuity in terms of sequential continuity or the characterization of compactness in terms of sequential compactness (whenever such characterizations hold). (Wikipedia).
Geogebra Tutorial : Union and Intersection of Sets
Union and intersection of sets can be drawing with geogebra. Please see the video to start how drawing union and intersection of sets. more visit https://onwardono.com
From playlist SET
Intersection and union of sets 2
drawing intersection and union with geogebra. this video can help you to drawing sets.
From playlist Go Geogebra
Algebraic Topology 1.5 : Covering Maps and the Fundamental Group of the Circle
In this video, I introduce what covering maps are, their property of lifting maps, the construction of unique lifts of paths, and then prove that the fundamental group of the circle is isomorphic to the integers using those lifts. Translate This Video : Notes : None yet Patreon : https://
From playlist Topology
Drawing Sets complete in venn diagram
drawing venn diagram with geogebra, teh video going to guide how draw venn diagram from geogebra. dont forget subscribe to others our videos
From playlist Geogebra Videos
Regions In A Planar Graph Solution - Intro to Algorithms
This video is part of an online course, Intro to Algorithms. Check out the course here: https://www.udacity.com/course/cs215.
From playlist Introduction to Algorithms
Regions In A Planar Graph - Intro to Algorithms
This video is part of an online course, Intro to Algorithms. Check out the course here: https://www.udacity.com/course/cs215.
From playlist Introduction to Algorithms
Shading sets in Venn diagrams (3)
Powered by https://www.numerise.com/ Shading sets in Venn diagrams (3)
From playlist Set theory
Sweeping under area of a curve
From playlist 2d graphs
Čech cohomology part II, Čech-to-derived spectral sequence, Mayer-Vietoris, étale cohomology of quasi-coherent sheaves, the Artin-Schreier exact sequence and the étale cohomology of F_p in characteristic p.
From playlist Étale cohomology and the Weil conjectures
Primoz Skraba (2/28/18): An approximate nerve theorem
The Nerve Theorem is an implicit tool in most applications of topological data analysis relating the topological type of a suitably nice space with a combinatorial description of the space, namely, the nerve of a cover of that space. It is required that it is a good cover, that each elemen
From playlist AATRN 2018
Paul Arne Østvær: The motivic Hopf map and the homotopy limit problem for hermitian K theory
The lecture was held within the framework of the (Junior) Hausdorff Trimester Program Topology: "Workshop: Hermitian K-theory and trace methods" This is a report on joint work with Markus Spitzweck and Oliver Röndigs. We use the first Hopf map to solve the homotopy limit problem for K-the
From playlist HIM Lectures: Junior Trimester Program "Topology"
Initial Theta Data - part 03 - Local Global l-torsion Compatibility
We explain the "technical condition" appearing in initial theta data. I learned about this particular simplification from Chung Pang Mok's notes.
From playlist Initial Theta Data
Anabelian Geometry - Absolute Anabelian Geometry and the Reconstruction of the Base Field
This video describes one of the key features of absolute anabelian geometry. One is able to interpret the map Pi_X \to G_K just from Pi_X itself! https://twitter.com/dupuytaylor
From playlist Anabelian Geometry
Purity, the Gysin sequence, cohomology of projective space, elementary fibrations, statement of Artin comparison
From playlist Étale cohomology and the Weil conjectures
Vera Tonic - Alternative proofs for the n-dimensional resolution theorems
Vera Tonic, University of Rijeka, Croatia Title: Alternative proofs for the n-dimensional resolution theorems Abstract: We present new, unified proofs for the cell-like-, Z/p-, and Q-resolution theorems in extension theory. Our arguments employ extensions that are much simpler than those u
From playlist 38th Annual Geometric Topology Workshop (Online), June 15-17, 2021
Dynamics of piecewise smooth maps (Lecture - 02) by Paul Glendinning
PROGRAM DYNAMICS OF COMPLEX SYSTEMS 2018 ORGANIZERS Amit Apte, Soumitro Banerjee, Pranay Goel, Partha Guha, Neelima Gupte, Govindan Rangarajan and Somdatta Sinha DATE: 16 June 2018 to 30 June 2018 VENUE: Ramanujan hall for Summer School held from 16 - 25 June, 2018; Madhava hall for W
From playlist Dynamics of Complex systems 2018
Moduli of p-divisible groups (Lecture 3) by Ehud De Shalit
PERFECTOID SPACES ORGANIZERS: Debargha Banerjee, Denis Benois, Chitrabhanu Chaudhuri, and Narasimha Kumar Cheraku DATE & TIME: 09 September 2019 to 20 September 2019 VENUE: Madhava Lecture Hall, ICTS, Bangalore Scientific committee: Jacques Tilouine (University of Paris, France) Eknath
From playlist Perfectoid Spaces 2019
Covering spaces | Algebraic Topology | NJ Wildberger
We introduce covering spaces of a space B, an idea that is naturally linked to the notion of fundamental group. The lecture starts by associating to a map between spaces, a homomorphism of fundamental groups. Then we look at the basic example of a covering space: the line covering a circle
From playlist Algebraic Topology