# Home Welcome to **A**nalysis, **C**ondensed-matter, **O**ptics, **R**heology: **U**nderstanding and **S**ummaries: This page provides an index of different topics. >[!Note] >Use the **navigation** at left to browse among topics, links given below are in the form of external links. Analysis and mathematics-related content - [Fourier Analysis](https://acorus.org/Analysis/Fourier+Analysis/Index+(Fourier+Analysis)) - [Group Theory](https://acorus.org/Analysis/Group+Theory+Intro/Index+(group+theory)) - [Tensor Analysis](https://acorus.org/Analysis/Tensor+Analysis/Index+(Tensor)) Condensed-matter - [Molecular and Material Modelling](https://acorus.org/Material+Modelling/Index+(MMM)) - [Semiconductor Nanostructures, Quantum transport](https://acorus.org/Semiconductor+Nanostructure%2C+Quantum+Transport+and+Fermions/Index+(semiconductors)) Optics and Photonics - [Optics](https://acorus.org/Electrodynamics%2C+Optics+and+Photonics/Index+(Optics)) Rheology and Disorder system - [Rheology](https://acorus.org/Soft+Matter%2C+Rheology+and+Disorder+Systems/Index+(Rheology)) Characterizations - [Characterizations](https://acorus.org/Material+Characterization+and+Instruments/Index+(Characterization)) Colloquiums, talks and general paper collections - [Colloquiums, talks and general paper collections](https://acorus.org/Colloquiums%2C+Talks+and+General+Paper+Collections/Colloquiums%2C+talks+and+general+paper+collections) >[!Note] >On these pages, links may have different colors: [[home|Yellow]] for internal links, [blue](https://acorus.org/home) for external links, and [[file_does_not_exist.pdf|purple]] for links to files not available on this site (e.g., due to copyright reasons). The content presented herein originates from personal learning notes that were compiled during lectures and through extensive readings of books and papers, and is intended primarily for personal use. It may become apparent that the intricacy of contemporary scientific research often precludes the neat categorization of a subject within a singular field of study. As a result, the material here encompasses several interdisciplinary topics that may not strictly conform to the categories under which they are listed. For example, soft condensed matter physics shares many aspects with rheology. The arrangement of these topics is primarily for convenience, aiming to furnish a comprehensible overview of a subject for those interested, rather than to uphold any standard of accuracy. Have fun reading! >[!Info] >Acorus is a genus of monocot flowering plants. See https://en.wikipedia.org/wiki/Acorus to know more about them.