Trigonometric sums and summation formulas have long served as essential tools for elucidating periodic phenomena across mathematics and the physical sciences. These techniques entail the explicit ...

Gordon James, Andrew Mathas, The Jantzen Sum Formula for Cyclotomic q-Schur Algebras, Transactions of the American Mathematical Society, Vol. 352, No. 11 (Nov., 2000), pp. 5381-5404 ...

Summation Formula: A closed-form expression used to compute the sum of sequences, particularly those involving trigonometric functions, without recourse to term-by-term addition.