2 type Ia and 4 core-collapse lensed supernovae per year at a limiting magnitude of 20.6 in the $r$ band. Applying a hybrid method which combines searching for highly magnified or multiply imaged transients, we find that LSST will detect 89 type Ia and 254 core-collapse lensed supernovae per year. In all cases, lensed core-collapsed supernovae will be dominated by type IIn supernovae contributing to 80 per cent of the total counts, although this prediction relies quite strongly on the adopted spectral templates for this class of supernovae. Revisiting the case of the lensed supernova iPTF16geu, we find that it is consistent within the $2\sigma$ contours of predicted redshifts and magnifications for the iPTF survey.
author:
- |
    Rados[ł]{}aw Wojtak$^{1}$[^1], Jens Hjorth$^{1}$ and Christa Gall$^{1}$\
    $^{1}$DARK, Niels Bohr Institute, University of Copenhagen, Lyngbyvej 2, 2100 Copenhagen, Denmark\
bibliography:
- 'master.bib'
title: 'Magnified or multiply imaged? – Search strategies for gravitationally lensed supernovae in wide-field surveys'
---

supernovae: general – gravitational lensing: strong – methods: statistical

Introduction
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The phenomenon of strongly lensed (multiply imaged) supernovae has long been theoretically considered [@Ref1964], but the first detections became possible only very recently. @Qui2014 found a strongly lensed Type Ia supernova magnified by 