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a pinched torus (or croissant surface) is a kind of two-dimensional surface. It gets its name from its resemblance to a torus that has been pinched at...

cosθ, sinθ>. The pinched torus is perhaps the simplest parametrization of the klein bottle in both three and four dimensions. It's a torus that, in three...

pseudomanifold. A pinched torus (see Figure 1) is an example of an orientable, compact 2-dimensional pseudomanifold. (Note that a pinched torus is not a normal...

that formal parameter is zero it degenerates to a pinched torus, and when it is nonzero it is a torus). The j-invariant of the Tate curve is given by a...

compact n-dimensional Riemannian manifold with sectional curvature strictly pinched between 1/4 and 1 then M is diffeomorphic to a sphere. Cheeger's finiteness...

cylinder around into a torus. Unfortunately this breaks θ symmetry, as paths on the inner portion (inboard side) of the torus are shorter than similar...

Pizzicato (/ˌpɪtsɪˈkɑːtoʊ/, Italian: [pittsiˈkaːto]; translated as 'pinched', and sometimes roughly as 'plucked') is a playing technique that involves...

primary fusion experiment is the National Spherical Torus Experiment-Upgrade (NSTX-U). Gas torus Magnetized Liner Inertial Fusion Peacock, N. J.; Robinson...

a bicycle tyre that is stitched closed around the inner tube to form a torus. The combination is then glued (sometimes with two-sided tape) onto a specially...

the torus, the radii of these circles become inverted, and one is left with a new torus which is "fatter" or "skinnier" than the original. This torus is...

signals injected through slots cut into the torus at spaces that would create a wave moving around the torus similar to the system used in linear accelerators...

has been created in the conductive ring. The magnetic field lines are "pinched" closer together, so the (average) magnetic field intensity inside the...

or 4 k + 4 {\displaystyle 4k+4} admitting an isometric torus action of a k-dimensional torus and for manifolds M admitting an isometric action of a compact...

more doughnuts. A disk-shaped doughnut can also be stretched and pinched into a torus until the center breaks to form a hole. Alternatively, a doughnut...

between the door and the drum, resulting in tearing and damage to the pinched clothing during tumbling and spinning. Nearly all front-loader washers...

down the sides of the cylinder. The current made magnetic fields that pinched the plasma, raising temperatures to 15 million degrees Celsius, for long...

introduced the notion of almost flat manifolds.[G78] The famous quarter-pinched sphere theorem in Riemannian geometry says that if a complete Riemannian...

Zbl 1161.53052. Brendle, Simon; Schoen, Richard (2009). "Manifolds with 1/4-pinched curvature are space forms". J. Amer. Math. Soc. 22 (1): 287–307. arXiv:0705...

driving current sheath which then forms the axisymmetric boundary of the pinched, or focused, hot plasma column. The dense plasma column (akin to the Z-pinch)...

manifolds with positive curvature are constrained, most dramatically the 1/4-pinched sphere theorem. Conversely, negative curvature is generic: for instance...