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:
These graduate lectures aim to give a relatively detailed introduction to different facets of modified gravity models.
Initially, in the first part, we will motivate why, with the discovery of the late time acceleration of the universe, there has recently been a huge amount of activity devoted to developing models which modify gravity on cosmological scales, and hence lead us to revise the standard model of cosmology based on general relativity.
In the second part we will discuss some of the generic features of modified gravity models: the existence of extra degrees of freedom, their stability (and questions related to the Ostrogradski ghost), and how these degrees of freedom must be screened on smaller scales in order to evade the tight gravitational tests in the solar system and the laboratory.
The third part will present in detail, some specific models of modified gravity. In particular we will consider massive gravity, as well as f(R), and the so-called Horndeski and beyond Horndeski theories. All of these have attracted a great deal of interest recently.
Finally, in the last part, we discuss how modifications of gravity can be tested on cosmological scales, focusing on linear and non-linear cosmological perturbations. The latest constraints on deviations from the standard Lambda-CDM will also be reviewed.