In order to enable an iCal export link, your account needs to have an API key created. This key enables other applications to access data from within Indico even when you are neither using nor logged into the Indico system yourself with the link provided. Once created, you can manage your key at any time by going to 'My Profile' and looking under the tab entitled 'HTTP API'. Further information about HTTP API keys can be found in the Indico documentation.
Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the 'My Profile' page under the 'HTTP API' and update the iCalendar links afterwards.
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Permanent link for all public and protected information:
Geometric Algebra as a coordinate free formalism for inner product spaces
(University of Iceland)
Geometric Algebra is the mathematical system defined by
imbuing the vectors of an inner product space directly with the Clifford
algebra generated by the inner product, without considering a separate
representation of the algebra operating on the vectors. This simple
change in point of view gives a system which generalizes exterior
algebra, quaternions, spinors, and many other algebras used in
theoretical physics, while simplifying both concepts and calculations.
In this talk, we will mostly introduce the algebra, and it's extension
to geometric calculus, before commenting on it's implications for
physics and briefly mentioning our own work in the field.