Frames are redundant sets of vectors in a Hilbert space, that have lower and upper frame bounds A and B respectively, which yield one natural representation for each vector in the space, but which have infinitely many representations for a given vector. A frame is considered tight when its lower and upper frame bounds equal each other, A=B. The problem faced is whether or not we can extend a tight frame from any Rn to Rn+1 in an algorithmic way and have the new frame retain its tightness. What we found was an affirmative, geometrically meaningful solution to this problem, so yes, we can extend a tight frame into Rn+1 and have the resulting frame still be tight
Let H be a finite dimensional (real or complex) Hilbert space and let {a_i} ∞_i=1. be a non-increasi...
The recently introduced notion of a frame potential has led to useful characterizations of finite-di...
International audienceFinite frames are sequences of vectors in finite dimensional Hilbert spaces th...
Abstract. We consider frames in a finite-dimensional Hilbert space Hn where frames are exactly the s...
Frames have become an important tool in signal processing and other applications. Equiangular tight ...
Abstract. Frames can be thought of as collections of rank-one, pos-itive semidefinite operators that...
A tight frame is the orthogonal projection of some orthonormal basis of Rn onto Rk. We show that a s...
A tight frame is the orthogonal projection of some orthonormal basis of Rn onto Rk. We show that a s...
Finite tight frames are widely used for many applications. An important problem is to construct fini...
Abstract. We characterize the frames on an infinite dimensional separable Hilbert space that can be ...
International audienceFinite frames are sequences of vectors in finite dimensional Hilbert spaces th...
A finite-dimensional Hilbert space is usually described in terms of an orthonormal basis, but in cer...
A finite-dimensional Hilbert space is usually described in terms of an orthonormal basis, but in cer...
A finite-dimensional Hilbert space is usually described in terms of an orthonormal basis, but in cer...
A finite-dimensional Hilbert space is usually described in terms of an orthonormal basis, but in cer...
Let H be a finite dimensional (real or complex) Hilbert space and let {a_i} ∞_i=1. be a non-increasi...
The recently introduced notion of a frame potential has led to useful characterizations of finite-di...
International audienceFinite frames are sequences of vectors in finite dimensional Hilbert spaces th...
Abstract. We consider frames in a finite-dimensional Hilbert space Hn where frames are exactly the s...
Frames have become an important tool in signal processing and other applications. Equiangular tight ...
Abstract. Frames can be thought of as collections of rank-one, pos-itive semidefinite operators that...
A tight frame is the orthogonal projection of some orthonormal basis of Rn onto Rk. We show that a s...
A tight frame is the orthogonal projection of some orthonormal basis of Rn onto Rk. We show that a s...
Finite tight frames are widely used for many applications. An important problem is to construct fini...
Abstract. We characterize the frames on an infinite dimensional separable Hilbert space that can be ...
International audienceFinite frames are sequences of vectors in finite dimensional Hilbert spaces th...
A finite-dimensional Hilbert space is usually described in terms of an orthonormal basis, but in cer...
A finite-dimensional Hilbert space is usually described in terms of an orthonormal basis, but in cer...
A finite-dimensional Hilbert space is usually described in terms of an orthonormal basis, but in cer...
A finite-dimensional Hilbert space is usually described in terms of an orthonormal basis, but in cer...
Let H be a finite dimensional (real or complex) Hilbert space and let {a_i} ∞_i=1. be a non-increasi...
The recently introduced notion of a frame potential has led to useful characterizations of finite-di...
International audienceFinite frames are sequences of vectors in finite dimensional Hilbert spaces th...