 Neville theta functions

The Neville theta functions, often referred to in the context of mathematical analysis and theory, are a set of functions that arise in various areas such as number theory, representation theory, and the theory of modular forms. Specifically, the most common use is in the context of theta functions associated with even positive definite quadratic forms. In general, theta functions are important in mathematical analysis and find applications in statistical mechanics, combinatorics, and algebraic geometry.