Yes, of course. These are not instances of viśeṣa as the latter part of a compound, etc. Here are a few examples, all of which are followed in the text by quotations from other works:

atra rātrijanmanīṣṭakālayoge viśeṣa uktas tājikālaṃkāre |

atra viśeṣa ukto dīpikāyām |

anyo ’pi viśeṣas tatraiva |

atha dhanarṇe lagnānayane viśeṣaḥ |

atrāntakaraṇe viśeṣa uktaḥ paddhatau |

Such instances are very numerous. There is also the following, where 'particular method' might fit better than 'special rule':

evaṃ sakalagaṇakasārvabhaumaśrīmadrāmadaivajñāptavidyair mādṛśair aneke viśeṣāḥ kartuṃ śakyante |

I anyone has matching examples from other contexts, I'd be very interested to see them.


Den 2015-10-09 kl. 05:25, skrev Ashok Aklujkar:
Could you cite a few occurrences with at least the whole sentence as a context? If the form is as one sees in vṛkṣa-viśeṣa, niyama-viśeṣa (or vṛkṣāṇāṁ viśeṣaḥ, niyamānāṁ viśeṣaḥ etc., then viśeṣa has not been used in any unusual sense. 


On Oct 8, 2015, at 5:01 AM, Martin Gansten <martin.gansten@PBHOME.SE> wrote:

Balabhadra in his astrological work Hāyanaratna repeatedly makes use of the noun viśeṣa in a sense which seems from the context to mean something like ‘special rule' or 'particular consideration'. I haven't found this precise meaning in any dictionary and am curious to know if the term occurs with this technical meaning in any other śāstras.