Except so far as may be necessary to wind up partnership affairs or to complete transactions begun but not then finished, dissolution terminates all authority of any partner to act for the partnership:
(1) With respect to the partners,
(a) When the dissolution is not by the act, insolvency or death of a partner; or
(b) When the dissolution is by such act, insolvency or death of a partner, in cases where article 1833 so requires;
(2) With respect to persons not partners, as declared in article 1834. (n)