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 Virasoro constraints - arising from Ward identities - are a key component in understanding the relation between matrix models and conformal field theories; they provide the set of equations constraining the generating function which can then be solved using CFT methods. These Virasoro constraints can be derived either using differential operators or by using the so-called free field representation of the Virasoro algebra. In this talk I will discuss what happens when these constraints are q-deformed. In particular, I will outline how such q-Virasoro constraints can be derived for a large class of deformed eigenvalue matrix models by an elementary trick of inserting certain q-difference operators under the integral. These q-Virasoro constraints can then be solved recursively and they also have applications for gauge theories.