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.
Permanent link for public information only:
Permanent link for all public and protected information:
The vierbein field of General Relativity contains components which can be
shifted by local Lorentz transformations and therefore do not show up in
the spacetime metric. In my talk I will show that these components can be
made physical in a consistent manner. They then appear in the form of an
antisymmetric tensor field which makes the action reminiscent of the
bosonic sector of supergravity. Both the metric and the antisymmetric
tensor can be made massive by adding a potential term for the vierbein to
the Einstein-Hilbert action. The form of this mass potential is inspired by
ghost-free massive gravity. I will discuss the features of the resulting