SubjectsSubjects(version: 978)
Course, academic year 2025/2026
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Combinatorics and Graph Theory 1 - NDMI011
Title: Kombinatorika a grafy 1
Guaranteed by: Computer Science Institute of Charles University (32-IUUK)
Faculty: Faculty of Mathematics and Physics
Actual: from 2023
Semester: winter
E-Credits: 5
Hours per week, examination: winter s.:2/2, C+Ex [HT]
Capacity: unlimited
Min. number of students: unlimited
4EU+: no
Virtual mobility / capacity: no
State of the course: taught
Language: Czech, English
Teaching methods: full-time
Guarantor: doc. RNDr. Vít Jelínek, Ph.D.
prof. RNDr. Jiří Fiala, Ph.D.
Teacher(s): Mgr. Eliška Červenková
Bc. Barbora Dohnalová
prof. Mgr. Zdeněk Dvořák, Ph.D.
Guillermo Andres Gamboa Quintero
Mgr. Tomáš Hons
Gaurav Sunil Kucheriya, M.Sc.
Mgr. David Mikšaník
Irena Penev, Ph.D.
Bc. Josef Tkadlec, Ph.D.
Class: Informatika Bc.
Classification: Informatics > Discrete Mathematics
Incompatibility : NDMA001, NDMX011
Interchangeability : NDMX011
Is incompatible with: NDMI031, NDMX011
Is pre-requisite for: NDMI069, NDMI021, NDMI068, NPFL049
Is interchangeable with: NDMA001, NDMI031, NDMX011
Annotation -
Inclusion-exclusion principle and its applications. Generating functions. Finite projective planes, latin squares. Hall theorem and its applications. Flows in digraphs. k-connectivity of graphs. Ramsey theory.
Last update: PANGRAC/MFF.CUNI.CZ (08.04.2010)
Course completion requirements -

Guillermo Gamboa, Gaurav Kucheriya (Winter 2025/2026): To obtain tutorial credit, students must obtain at least 50 points. Up to 30 points can be obtained for homeworks, up to 30 points for activity during tutorials, up to 30 points for short tests given during lectures. To take the exam, students must first obtain tutorial credit. There is no other provision for repeated attempts at obtaining a course credit.

Last update: Dvořák Zdeněk, prof. Mgr., Ph.D. (06.10.2025)
Literature -

J. Matoušek, J. Nešetřil: Invitation to Discrete Mathematics, Oxford University Press (1998)

R. Diestel: Graph Theory (4th edition), Springer (2010)

Last update: Jelínek Vít, doc. RNDr., Ph.D. (22.11.2012)
Requirements to the exam -

Zdeněk Dvořák (Winter 2025/2026): To take the exam, students must first obtain tutorial credit. The exam has a combined form: written and oral. In the written part, you might be required to state a definition/theorem from the lecture; to prove a theorem from the lecture; and/or to solve a problem related to the material covered in the lecture/tutorial.

Last update: Dvořák Zdeněk, prof. Mgr., Ph.D. (06.10.2025)
Syllabus -

Double Counting: Sperner Theorem, The maximum number of edges in a graph without C4 and without K3.

Number of spanning trees (determinant proof) and electrical networks.

Generating functions (understood as Taylor series), applications: Catalan, Fibonacci numbers, solving recurrences, asymptotics of the solution.

Finite projective planes.

Error-correcting codes, basic properties. Hammnig code, Hadamard code. Existence of asymptotically good codes (Gilbert-Varshamov). Hamming's lower bound.

Maximum matching in graphs, Hall's theorem and its applications (Birkhoff-von Neumann theorem), Tutte theorem.

k-connectivity, Menger's theorem. Ear lemma, structure of 2-connected graphs.

Ramsey theorem, Ramsey theorem for p-tuples, Ramsey infinite theorem.

König's theorem on the infinite branch.

Last update: Tkadlec Josef, Bc., Ph.D. (14.10.2024)
 
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