Penelitian ini bertujuan untuk mengetahui pengaruh kualitas produk terhadap kepuasan konsumen di Toko Sembako A.A Store di Jakarta, mengetahui pengaruh harga produk terhadap kepuasan konsumen di Toko Sembako A.A Store di Jakarta, dan mengetahui pengaruh kualitas produk dan harga produk terhadap kepuasan konsumen di Toko Sembako A.A Store di Jakarta. Penelitian ini dilakukan di A.A Store Jakarta…

We prove that the presence or absence of corners is spectrally determined in the following sense: any simply connected planar domain with piecewise smooth Lipschitz boundary and at least one corner cannot be isospectral to any connected planar domain, of any genus, that has smooth boundary. Moreover, we prove that amongst all planar domains with Lipschitz, piecewise smooth boundary and fixed ge…