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Combinatorics and Graph Theory 2

Kombinatorika és gráfelmélet 2
A tantárgyleírás hatályossága
Hatályosság kezdete:
2026. March 21.
Hatályosság vége:
Subject name (Hungarian, English)
Kombinatorika és gráfelmélet 2
Combinatorics and Graph Theory 2
Subject code BMEVISZA026
Subject type
Training Level
Course types and hours (weekly/semester)
Course type lecture tutorial laboratory
hours (weekly) 2 2 0
type (linked/independent) derived course
Assessment type vizsga
Credits 4
Subject coordinator
Fleiner Tamás
position: egyetemi tanár
Responsible department
Számítástudományi és Információelméleti Tanszék
Faculty Villamosmérnöki és Informatikai Kar
Subject website
Primary curriculum type
Direct prerequisites – Strong prerequisite none
Direct prerequisites – Weak prerequisite none
Direct prerequisites – Parallel prerequisite none
Direct prerequisites – Milestone prerequisite none
Direct prerequisites – Exclusion none

Objectives

Programme

Geometric and abstract duality, weak isomorphism (2-isomorphism) and the Whitney theorems.

Vertex and edge coloring, Mycielsky's construction, Brooks' theorem. 5-colour theorem, Vizing's theorem, connection of edge-colouring to matchings, Petersen's theorem.

List colouring of graphs, Galvin's theorem.

Perfect graphs, interval graphs and the perfect graph theorem.

Ramsey's theorem, Erdős-Szekeres theorem, Erdős' lower bound and the probabilistic method.

Turán's theorem, Erdős-Stone theorem, Erdős-Simonovits theorem.

Hypergraphs, Erdős-Ko-Rado theorem, Sperner's theorem and the LYM inequality.

De Bruijn-Erdős theorem, finite planes, construction from finite field, and from difference sets.

Generating functions, Fibonacci numbers, Catalan numbers. Posets, Dilworth's theorem.

No objectives provided.

Learning outcomes

Ez a tantárgy a KKK rendeletben meghatározott, következő kompetenciák fejlesztését szolgálja:

Knowledge

No learning outcomes recorded.

Skills

No learning outcomes recorded.

Attitudes

No learning outcomes recorded.

Autonomy and responsibility

No learning outcomes recorded.

Oktatási módszertan

Two lectures and two  tutorials each week.

Tanulástámogató anyagok

Online források
R. Diestel: Graph Theory (online available); J.A. Bondy & U.S.R. Murty: Graph Theory with Applications

Recommended preliminary knowledge for completing the subject

Knowledge type competencies
(azon előzetes ismeretek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
Basic graph theoretical notions and algorithms
Skill type competencies
(azon előzetes képességek és készségek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
nincs
Recommended (non-compulsory) preliminary competencies
(azon ajánlott (nem kötelező) előzetesen megszerzendő kompetenciák összessége, amelyek jelentősen hozzájárulnak a tantárgy eredményes teljesítéséhez)
Basic graph theoretical notions and algorithms
General rules
Requirements: In the semester: two midterm. The condition for the audit is that both midterms are succesful. In the exam season: oral exam for those that have a valid audit. The final grade is based 40% on the midterms, 10% on the homework assignments and 50% on the oral exam. Additional possibilities: According to the general rules: one midterm can be repeated.
Assessment methods
In-term assessments

No detailed assessments provided.

Weight of in-term assessments

No weights provided.

Exam-period assessments

No detailed assessments provided.

Weight of exam elements

No weights provided.

Grade calculation

No grade thresholds provided.

Attendance requirements

No attendance requirements provided.

Rules for retake and resubmission

Not provided.

Short description

Not provided.

Detailed description

Not provided.

Recommended courses
Combinatorics and Graph Theory 1.        BMEVISZA025
Workload to complete the subject

No workload breakdown provided.

Validity of subject requirements
Requirements valid from:
Requirements valid until:
Curriculum placement

No curriculum placements recorded for this subject version.