## Hints fo the basic search in the Math*Diss* Database

The simple search checks a single index which collects the entries of the text fields of the datadase

URLs als well as their component are not searched, for that there is a
Basic and an
Advanced Search available.

This search disregards capitalisation and diacritical marks are removed, only the German umlauts are preserved (with ä = ae, ö = oe and ü = ue).
There are the following search options (illustrated with examples):

- Kewords:
- Poincaré-Dualitätsalgebra
(identical to poincare-dualitaetsalgebra)
- AND-Concatenated Keyword Search:
- Poincaré inequality
(identical to poincare AND inequality)
- Excluding Search:
- Poincaré -inequality
- OR-Concatenated Keyword Search:
- Serre or Cartan
- Truncation:
- Integral*

Integral* -Riemann
- Terms and Phrases:
- "abelian varieties"

### Information on the syntax and possible applications of operators

- AND Combination:
- Entering several keywords will match datasets which contain all these keywords, not necessarily within the same field. You don't need to enter an "AND" since spaces are interpreted as "AND".

Example: abelian varieties
- Excluding Keyword Search (AND-NOT Combination):
- Enter several keywords, one of which has to be matched and others are not allowed to appear (you mark those with a leading minus sign "-").

Example: abelian -varieties
- Alternate Search (OR Combination):
- Enter several keywords, at least one of which has to be matched.

Example: abelian OR varieties
- Truncation:
- You can replace one or more characters at the end of a word using * as a wildcard (* matches zero to several mehrere characters). This can be useful when looking for different languages.

Example: ellipti* finds elliptic, elliptique and elliptisch

**HINT:**

Complex search terms can be created using parentheses:

(algebraic or differential) (variet* -equation*)
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URL: http://MathDiss.MathGuide.de/