Class Central

Rankings
Career Certificates

Subjects

View all

Technology
Business
Creative
STEM
Health & Wellness
People & Society
Personal Growth & Lifestyle

View all Subjects

Universities
The Report

Courses from 1000+ universities

Rankings

Best Courses

Best of All Time
Best of the Year

Most Popular Courses

Most Popular of All Time
Most Popular of the Year

Career Certificates

Generative AI
UX Design
Data Science
Finance
DevOps
Project Management
View all Career Certificates

Technology

Computer Science
Artificial Intelligence
Data Science
Web Development
Programming
Databases
IT & Networking
DevOps
UX/UI Design
Blockchain & Cryptocurrency
Extended Reality (XR)
Generative AI
Cloud Computing
Cybersecurity
Game Development
Product Management
View all Technology

Business

Management & Leadership
Finance
Entrepreneurship
Marketing
Strategic Management
Project Management
Sales
Business Software
Real Estate
Professional Development
Accounting
Supply Chain Management
Business Strategy
Human Resources
View all Business

Creative

Music
Digital Media
Visual Arts
Design
Crafts
Performing Arts
AI Art
View all Creative

STEM

Mathematics
Engineering
Science
Statistics & Probability
Chemistry
Physics
Environmental Science
Astronomy
Biology
Agriculture
View all STEM

Health & Wellness

Disease & Disorders
Public Health
Health Care
Nursing
Mental Health
Continuing Medical Education (CME)
Medicine
Wellness
Nutrition
View all Health & Wellness

People & Society

Humanities
Education & Teaching
Social Sciences
History
Literature
Sociology
Economics
Psychology
Anthropology
Political Science
Law
Language Learning
Writing
Philosophy
Religion
View all People & Society

Personal Growth & Lifestyle

Personal Development
Sports & Recreation
Personal Finance
Parenting & Family
Food & Drink
Self-Defense & Martial Arts
Gardening
Productivity & Time Management
Games
Study Skills
Travel
Pets & Pet Care
Beauty & Makeup
Home & Living
Critical Thinking
View all Personal Growth & Lifestyle

Banning Telegram Can’t Stop Paper Leaks: Inside India’s NEET Exam Scandal

India banned Telegram after the NEET paper leak led to a retest for 2.28 million students. Class Central studied the scam, the money trail, and other platforms the leaks could move to.

Manoj Sharma Jul 29, 2026

Latest

10 Best Free LaTeX Courses for 2026: From First Document to Custom Packages
8 Best Web Development Courses for 2026 (Free & Paid): Over 900 Hours of Learning
10 Best Cinema 4D Courses for 2026: Mograph to Redshift
Crystal Programming Language: 6 Best Free Courses 2026
Your Formula for Chemistry: 140+ Free Online Courses [2026]

Write for The Report

Visit The Report

600 Free Google Certifications
Trending

Most common

Popular courses

Cryptography I
Stanford University
El rol de la digitalización en la transición energética
Galileo University
Supporting Victims of Domestic Violence
The University of Sheffield

Organize and share your learning with Class Central Lists.

View our Lists Showcase

Sign up

Log in or Sign up

Log in
Sign up

Free Online

Graph Theory Courses

Explore a wide range of free and certified Graph theory online courses. Find the best Graph theory training programs and enhance your skills today!

4,667 courses

Related Subjects

STEM Courses
Technology Courses
People & Society Courses
Conference Talks Courses

Showing 4,667 courses

Sort by Relevancy

Filter by

Filters

1. Free course (4,484)
2. With certificate (347)
3. Career certificates (12)
4. From universities (407)
Level
1. Beginner (297)
2. Intermediate (666)
3. Advanced (3,682)
Duration
1. < 30 mins (729)
2. 30 - 60 mins (1,500)
3. 1 - 2 hours (1,660)
4. 2 - 5 hours (221)
5. 5 - 10 hours (77)
6. 10+ hours (241)
Subject
1. STEM (2,741)
2. Technology (1,187)
3. People & Society (272)
4. Conference Talks (203)
Language
1. English (4,561)
2. Chinese (18)
3. French (18)
4. German (5)
5. Greek (1)
6. Hebrew (1)
7. Hindi (8)
8. Indonesian (1)
9. Italian (3)
10. Japanese (9)
11. Korean (1)
12. Polish (1)
13. Portuguese (21)
14. Punjabi (1)
15. Russian (5)
16. Spanish (12)
17. Telugu (1)

International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 26

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams, perturbation theory, and gauge theories in this graduate-level physics exploration.
- YouTube
- 1 hour 28 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 27

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams, perturbation theory, and gauge theories in this graduate-level physics exploration.
- YouTube
- 1 hour 32 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 24

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams, perturbation theory, and gauge theories in this graduate-level physics exploration.
- YouTube
- 2 hours 14 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 16

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and renormalization, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 52 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 18

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and renormalization, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 1 hour 28 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 19

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams, exploring particle physics fundamentals and modern scattering amplitude methods.
- YouTube
- 1 hour 28 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 20

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams, exploring particle physics fundamentals and modern scattering amplitude methods.
- YouTube
- 1 hour 30 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 17

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and renormalization, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 1 hour 31 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 15

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and renormalization, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 1 hour 23 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 13

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and renormalization, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 1 hour 9 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 14

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and S-matrix properties, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 1 hour 28 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 8

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and renormalization, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 1 hour 32 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 9

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and renormalization, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 1 hour 37 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 3

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and renormalization, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 1 hour 35 minutes
- Self-Paced
- Free Video
International Centre for Theoretical Sciences
Quantum Field Theory - Lecture 6

Delve into advanced quantum field theory concepts, from canonical quantization to Feynman diagrams and S-matrix properties, guided by expert instruction in theoretical physics fundamentals.
- YouTube
- 1 hour 28 minutes
- Self-Paced
- Free Video

Career Certificates

Generative AI
UX Design
Data Science
Finance
DevOps
Project Management
All Subjects

Coursera
Udemy
Noble Desktop
Simplilearn
CodeSignal
Boot.dev
All Universities

The Report by Class Central RSS Feed

Series Finale of Online Education
Udemy Earns More, Pays Less
Duolingo's 2026 Strategy
1000s of Free Certificates
Best Courses Guides
Best of All Time
Most Popular of All Time

About Class Central

Class Central aggregates courses from many providers to help you find the best courses on almost any subject, wherever they exist.

Facebook
Twitter
LinkedIn
YouTube
Bluesky

Class Central © 2011-2026 Privacy Policy

About Us
Join Us
Write for Us
Help Center
Contact Us

Share

Facebook
Twitter
Bluesky
Email

Never Stop Learning.

Get personalized course recommendations, track subjects and courses with reminders, and more.

Sign up for free

Someone learning on their laptop while sitting on the floor.