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:
Cancellation of chiral anomalies played a crucial role in the emergence of string theory in the eighties of last century.
Initially, seemingly mysterious cancellations where found in field theories related to string theory. It was clear that these
numerical coincidences had to be related to a deep property of closed string theory called "modular invariance". The direct relation was made clear a few years later when Nick Warner and I constructed a anomaly generating function that a little bit later became known as "the elliptic genus". In the second part of the talk I will discuss an application to the classification of meromorphic conformal field theories, which are additional items on a list that includes the famous "Monster Module".